SIST EN 50598-1:2015

Ecodesign for power drive systems, motor starters, power electronics & their driven applications - Part 1: General requirements for setting energy efficiency standards for power driven equipment using the extended product approach (EPA), and semi analytic model (SAM)

This part of EN 50598 provides the general requirements to energy efficiency standardization for any extended product by using the guidance of the extended product approach (EPA).
It enables product committees for driven equipment with embedded motor systems (so called extended products) to interface with the relative power losses of the embedded motor system (e.g. PDS) in order to calculate the system energy efficiency for the whole application.
This shall be based on specified calculation models for speed/load profiles, the duty profiles and relative power losses of appropriate torque versus speed operating points.
This part of EN 50598 specifies the methodology of determination of losses of the extended product and its sub-parts.
This part of EN 50598 does not specify requirements for environmental impact declarations.

Ökodesign für Antriebssysteme, Motorstarter, Leistungselektronik und deren angetriebene Einrichtungen -- Teil 1: Allgemeine Anforderungen für die Erstellung von Normen zur Energieeffizienz von Ausrüstungen mit Elektroantrieb nach dem erweiterten Produktansatz (EPA) und semi-analytischen Modellen (SAM)

Dieser Teil von EN 50598 enthält eine allgemeine Vorgehensweise nach dem erweiterten Produktansatz EPA für die Normungsarbeit zum Thema Energieeffizienz für elektrisch angetriebene Teilanlagen.
Produktkomitees, die sich damit befassen, erhalten die Möglichkeit, die relativen Verlustleistungen des eingebauten elektrischen Motorsystems (z. B. PDS) mit der davon angetriebenen Teilanlage jeder Art zu verknüpfen, um deren insgesamte System-Energieeffizienz zu bestimmen.
Die Grundlage dafür sind festgelegte Berechnungsmodelle für Drehzahl/Last-Profile, die zeitlichen Belastungsprofile und relative Verlustleistungen des Antriebssystems in geeigneten Arbeitspunkten unter-schiedlicher Drehmomente in Abhängigkeit von der Drehzahl.
Dieser Teil von EN 50598 legt die Methodik für die Bestimmung der Verluste des erweiterten Produktes und seiner Bestandteile fest.
Dieser Teil von EN 50598 legt keine Anforderungen an Umweltverträglichkeitserklärungen fest.

Ecoconception des entraînements électriques de puissance, des démarreurs de moteur, de l'électronique de puissance et de leurs applications entraînées -- Partie 1: Exigences générales pour définir les normes d'efficacité énergétique d'un équipement entraîné via l'approche produit étendu (EPA) et par le modèle semi-analytique (SAM)

Cette partie de la norme pour l'écoconception fournit les exigences générales pour la normalisation de l'efficacité énergétique pour tout produit étendu à l'aide des lignes directrices de l'approche produit étendu (EPA).
Elle permet aux comités de produit pour l'équipement entraîné avec des systèmes moteurs intégrés (appelés produits étendus) d'entrer en interface avec les pertes d'alimentation relatives du système moteur intégré (par exemple, PDS) afin de calculer l'efficacité énergétique du système pour toute l'application.
Cela doit se baser sur les modèles de calcul spécifiés pour les profils de vitesse/charge, les profils de service et les pertes de puissance relatives des points d'exploitation du couple par rapport à la vitesse appropriée.
Cette partie de la norme spécifie la méthodologie pour déterminer les pertes du produit étendu et de ses sous-parties.
Cette partie de la norme ne spécifie pas les exigences pour les déclarations concernant l'effet sur l'environnement.

Okoljsko primerna zasnova motornih pogonskih sistemov, motornih zaganjalnikov, močnostne elektronike in njihove aplikacije, ki jih ti poganjajo - 1. del: Splošne zahteve za določitev standardov energijske učinkovitosti motorno gnane opreme z uporabo razširjenega proizvodnega pristopa (EPA) in polanalitičnega modela (SAM)

Ta del standarda EN 50598 določa splošne zahteve za standardizacijo energijske učinkovitosti za razširjene proizvode z uporabo smernic razširjenega proizvodnega pristopa (EPA).
Omogoča tehničnim odborom za opremo, gnano z vgrajenimi motornimi sistemi (ti. razširjeni proizvodi), povezavo z relativno izgubo energije vgrajenih motornih sistemov (npr. PDS) za izračun energijske učinkovitosti sistema za celotno aplikacijo.
Ta bo osnovan na določenih računskih modelih za hitrostne/nalagalne profile, dolžnostne profile in relativne izgube energije ustreznih navornih delovnih točkah napram hitrostnim delovnim točkam.
Ta del standarda EN 50598 navaja metodologijo za določanje izgub razširjenih proizvodov in njihovih poddelov.
Ta del ISO 50598 ne določa zahtev za deklaracije o okoljskih vplivih.

General Information

• Status: Published
• Public Enquiry End Date: 31-Jan-2014
• Publication Date: 13-Aug-2015
• ICS: 13.020.99 - Other standards related to environmental protection
• ICS: 29.160.30 - Motors
• ICS: 31.020 - Electronic components in general
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Feb-2015
• Due Date: 18-Apr-2015
• Completion Date: 14-Aug-2015
• Directive: 2009/125/EC - Directive 2005/32/EC of the European Parliament and of the Council of 6 July 2005 establishing a framework for the setting of ecodesign requirements for energy-using products and amending Council Directive 92/42/EEC and Directives 96/57/EC and 2000/55/EC of the European Parliament and of the Council
• Directive: 640/2009 - Commission Regulation (EC) No 640/2009 of 22 July 2009 implementing Directive 2005/32/EC of the European Parliament and of the Council with regard to ecodesign requirements for electric motors
• Mandate: M/470 - Mandate to CEN, CENELEC and ETSI for Standardisation in the field of electric motors
• Mandate: M/476 - Mandate to CEN, CENELEC and ETSI for standardisation in the field of variable speed drives and/or Power Drive System products
• Mandate: M/495 - Standardisation mandate to CEN, CENELEC and ETSI under Directive 2009/125/EC relating to harmonised standards in the field of Ecodesign
• Ref Project: EN 50598-1:2014 - Ecodesign for power drive systems, motor starters, power electronics & their driven applications - Part 1: General requirements for setting energy efficiency standards for power driven equipment using the extended product approach (EPA), and semi analytic model (SAM)

Relations

• Replaced By: SIST EN 61800-9-1:2017 - Adjustable speed electrical power drive systems - Part 9-1: Energy efficiency of power drive systems, motor starters, power electronics and their driven applications - General requirements for setting energy efficiency standards for power driven equipment using the Extended Product Approach (EPA) and semi analytic model (SAM) (IEC 61800-9-1:2017)
• Effective Date: 20-Jun-2017
• Replaced By: SIST EN 61800-9-1:2017 - Adjustable speed electrical power drive systems - Part 9-1: Energy efficiency of power drive systems, motor starters, power electronics and their driven applications - General requirements for setting energy efficiency standards for power driven equipment using the Extended Product Approach (EPA) and semi analytic model (SAM) (IEC 61800-9-1:2017)
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50598-1:2015
01-september-2015
2NROMVNRSULPHUQD]DVQRYDPRWRUQLKSRJRQVNLKVLVWHPRYPRWRUQLK
]DJDQMDOQLNRYPRþQRVWQHHOHNWURQLNHLQQMLKRYHDSOLNDFLMHNLMLKWLSRJDQMDMR
GHO6SORãQH]DKWHYH]DGRORþLWHYVWDQGDUGRYHQHUJLMVNHXþLQNRYLWRVWLPRWRUQR
JQDQHRSUHPH]XSRUDERUD]ãLUMHQHJDSURL]YRGQHJDSULVWRSD(3$LQ
SRODQDOLWLþQHJDPRGHOD6$0
Ecodesign for power drive systems, motor starters, power electronics & their driven
applications - Part 1: General requirements for setting energy efficiency standards for
power driven equipment using the extended product approach (EPA), and semi analytic
model (SAM)
Ökodesign für Antriebssysteme, Motorstarter, Leistungselektronik und deren
angetriebene Einrichtungen -- Teil 1: Allgemeine Anforderungen für die Erstellung von
Normen zur Energieeffizienz von Ausrüstungen mit Elektroantrieb nach dem erweiterten
Produktansatz (EPA) und semi-analytischen Modellen (SAM)
Ecoconception des entraînements électriques de puissance, des démarreurs de moteur,
de l'électronique de puissance et de leurs applications entraînées -- Partie 1: Exigences
générales pour définir les normes d'efficacité énergétique d'un équipement entraîné via
l'approche produit étendu (EPA) et par le modèle semi-analytique (SAM)
Ta slovenski standard je istoveten z: EN 50598-1:2014
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
31.020 Elektronske komponente na Electronic components in
splošno general
SIST EN 50598-1:2015 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50598-1:2015

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SIST EN 50598-1:2015


EUROPEAN STANDARD EN 50598-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2014
ICS 29.160.30

English Version
Ecodesign for power drive systems, motor starters, power
electronics & their driven applications - Part 1: General
requirements for setting energy efficiency standards for power
driven equipment using the extended product approach (EPA),
and semi analytic model (SAM)
Ecoconception des entraînements électriques de Ökodesign für Antriebssysteme, Motorstarter,
puissance, des démarreurs de moteur, de l'électronique de Leistungselektronik und deren angetriebene Einrichtungen -
puissance et de leurs applications entraînées - Partie 1: Teil 1: Allgemeine Anforderungen zur Erstellung von
Exigences générales pour définir les normes d'efficacité Normen zur Energieeffizienz von Ausrüstungen mit
énergétique d'un équipement entraîné via l'approche Elektroantrieb nach dem erweiterten Produktansatz (EPA)
produit étendu (EPA) et par le modèle semi-analytique mit semi-analytischen Modellen (SAM)
(SAM)
This European Standard was approved by CENELEC on 2014-11-17. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 50598-1:2014 E

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
Contents Page
Foreword.3
1 Scope .6
2 Normative references .6
3 Terms, definitions, symbols, units and abbreviated terms .6
4 Requirements for the development of energy efficiency standards for extended products .9
4.1 General .9
4.2 Responsibility of the driven equipment technical committee . 10
4.3 Elements included in the extended product approach . 10
5 Requirements for the semi analytical model (SAM) of the extended product . 11
5.1 General . 11
5.2 Torque/Power versus speed profiles . 12
5.3 Operating points over time . 13
6 Requirements for the semi analytical model (SAM) of the motor system . 14
6.1 General . 14
6.2 Speed versus torque loss points of a PDS and the associated power losses . 15
6.3 Requirements if the motor system contains no CDM . 15
7 Merging the semi analytical models (SAMs) to the extended product approach . 16
7.1 General . 16
7.2 Speed versus torque loss points of a motor system . 17
7.3 How to determine intermediate speed versus torque loss points of a motor system . 17
7.3.1 General . 17
7.3.2 Determination of intermediate relative losses for speed versus torque

operating points of a motor system . 17
7.3.3 Loss determination by maximum losses of neighboured loss points . 18
7.3.4 Loss determination by two-dimensional interpolation of losses of
neighboured loss points . 18
Annex A (informative) Example how to apply the SAM in the EPA for pump systems with a
required speed versus torque loss points using the PDS . 20
Annex B (informative)  General calculation of the energy consumption based on the duty
profile . 22
Annex C (informative) Illustration of the collaboration of different responsibilities in the
extended product approach. 23
Bibliography . 24

2

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
Foreword
This document (EN 50598-1:2014) has been prepared by CLC/TC 22X "Power electronics".
The following dates are fixed:

(dop) 2015-11-17
• latest date by which this document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2017-11-17
standards conflicting with this
document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association.
EN 50598, Ecodesign for power drive systems, motor starters, power electronics & their driven
applications, will consist of the following parts:
- Part 1: General requirements for setting energy efficiency standards for power driven equipment
using the extended product approach (EPA), and semi analytical model (SAM);
- Part 2: Energy efficiency indicators for power drive systems and motor starters;
- Part 3: Quantitative ecodesign approach through life cycle assessment including product category
rules and the content of environmental declarations.
The CLC/TC 22X/WG 06 is the enabled task force for dealing with the Mandate M/476 from European
Commission for the standardization in the field of variable speed drives and/or power drive system
products.
It has been set a close collaboration with several other technical committees (i.e. CLC/TC 2;
CLC/TC 17B) in order to provide a comprehensive standard for energy efficiency aspects and
ecodesign requirements together with a pilot stakeholder committee CEN/TC 197 from the customers
side.
Key points:
- Requirements on the content of semi analytical models for motor system driven equipment;
- Requirements how to use them in the extended product approach.
The content could be of interest for the following technical committees CLC/TC 59X, CLC/TC 111X,
CEN/TC 44, CEN/TC 113, CEN/TC 121, CEN/TC 123, CEN/TC 142, CEN/TC 143, CEN/TC 156,
CEN/TC 228, CEN/TC 232 and CEN/TC 299.
It is the intention of the working group that this document, once finalized as European standard series,
will be further processed to an international consensus in IEC and ISO.
3

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
Introduction
The Technical Committee CLC/TC 22X has circulated at 2010-03-31 the document
CLC/TC 22X/Sec0100/DC document including the mandate M/476 from European Commission for
standardization in the field of variable speed drives and/or power drive system products.
As the PDS contains converter driven motors, the requirements for measuring of the energy efficiency
of motors with non-sinusoidal supply is under the responsibility of CLC/TC2 covering the requirement
from Mandate M/470.
The document is based on the CENELEC technical board document referenced BT137/DG8058/INF
also reproducing this EC-mandate.
The CLC/TC 22X/WG 06 as being the standardization task force for dealing with this Mandate has
close collaboration with several other technical committees (i.e. CLC/TC 2; CLC/TC 17B).
Therefore CLC/TC 22X committee has been enabled responsible to clarify all relevant aspects in the
field of energy efficiency and ecodesign requirements for power electronics, switchgear, control gear,
and power drive systems and their industrial applications.
The sometimes controversial requirements are illustrated in Figure 1. The work has been agreed to
provide the reasonable target as a best compromise.
MMararkekett ssuurrvveeiillallabblele
((iinnddeeppeennddeenndd
TTechechnniicacallllyy
certifiable ))
ccoommpprreehheennssiivvee
RReasoeasonnababllee ttararggetet
MMananuuffacacttuurrerernneeuuttrraall
(N(Noo mmararkekettiinngg
mmessaessaggeses))

Figure 1 — Illustration of controversial requirements for the energy related product (ErP)
standardization
EN 50598 is developed under the CENELEC projects number 24602 to 24604 for compliance with
requirements from the horizontal mandate M/495.
Its three parts are together directly related to the mandates M/470 and M/476.
For the other mandates listed in Table 1, this standard could be applied if the future product standards
developed will make reference to it.
4

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
Table 1 — Mandates of the European Commission given to CEN, CENELEC and ETSI and how
they are contributed by these standard series parts
Mandates Part 1 Part 2 Part 3
M/470
 

Motors
M/476
 

PDS
M/495
  
Horizontal all
future
Applications
M/488
 
()
HVAC comfort
fans
M/498
 
()
Pumps
M/500
  ()
Compressors


5

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
1 Scope
This European Standard provides a general methodology to energy efficiency standardization for any
extended product including a motor system by using the methodological guidance of the extended
product approach (EPA).
It enables product committees for driven equipment with included motor systems to interact with the
relative power losses of the included motor system (e.g. PDS) in order to determine the system energy
efficiency aspects for the extended product by calculation.
This should be based on specified calculation models for speed/load profiles, the duty profiles and
relative power losses of appropriate torque versus speed operating points.
This part of the EN 50598 series specifies the methodology of determination of losses of the extended
product including a motor system and its sub-parts.
This framework is explained by an example for pumps.
This part of the standard does not specify requirements for environmental impact declarations.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 50598-2, Ecodesign for power drive systems, motor starters, power electronics & their driven
applications — Part 2: Energy efficiency indicators for power drive systems and motor starters
IEC 60050-161, International Electrotechnical Vocabulary. Chapter 161: Electromagnetic compatibility
3 Terms, definitions, symbols, units and abbreviated terms
For the purposes of this document, the terms and definitions given in IEC 60050-161 and the following
apply.
3.1
Energy Efficiency Index
EEI
value describing an energy efficiency aspect of an application, resulting from the extended product
approach (EPA)
Note 1 to entry: If the extended product is a pump system, the EEI is the ratio of the input power to the theoretical
reference power required for the application.
3.2
Extended Product
EP
driven equipment together with its included motor system (e.g a PDS, a motor starter)
Note 1 to entry: See Figure 2.
6

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
extended product
motor system
power drive system (PDS)
driven equipment
complete drive module (CDM)
basic
mains &
trans- load
feeding
auxil- drive auxil-
motor
mains
mission Machine
section iaries module iaries
cabling
(BDM)
motor starter
contactor, softstarter,
etc.
motor control equipment = CDM or starter

Figure 2 — Illustration of the extended product including a motor system
3.3
Extended Product Approach
EPA
methodology to determine the energy efficiency index (EEI) of the extended product (EP) using the
speed torque profiles of the driven equipment, the relative power losses of the motor system and the
duty profile of the application
3.4
motor control equipment
either a CDM or a motor starter
3.5
motor system
motor control equipment and a motor
3.6
duty profile
fraction of time spent at each operating point during the total operating time or a complete cycle of
operation of the extended product
Note 1 to entry: Typically this profile is represented by an histogram.
Note 2 to entry: The standby mode can be included in the load time profile.
3.7
P
Electrical
power consumption [kW] of an application
3.8
P
Electrical Max
power consumption [kW] at 100 % speed and 100 % load
3.9

P
i
power consumption [kW] at operating point i
3.10
P
in,CDM
input power [kW] of the CDM from the power loss measurement
7

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
3.11
P
in,PDS
input power [kW] of the PDS from the power loss measurement
3.12
P
n
nominal Power [kW] of equipment which is typical for its population of the same rating
Note 1 to entry: See EN 60034-1 for motors.
3.13
P
out,CDM
output power [kW] of CDM from the power loss measurement
3.14
P
out,PDS
output power [kW] of PDS from the power loss measurement
3.15
P
r
rated power [kW] of equipment which is assigned by its manufacturer
3.16
P
Reference
power consumption [kW] used for reference, defined by the extended product committee
3.17
P
L
electrical power losses with the indices CDM dedicates it to the complete drive module, Mot dedicates
it to the motor, Aux dedicates it to the auxiliary devices like cables, transformers or filters
Note 1 to entry: The relative power losses are the per unit losses relative to the nominal power of the device.
3.18
P
L,CDM
power losses of a CDM
3.19
P
L,CDM, determined
power losses of CDM from the power loss determination method
3.20
p
L,CDM,relative
power losses of the CDM, referred to its rated apparent power
3.21
P
L,inverter
power losses in the inverter section of a CDM
3.22
P
L,PDS, determined
power losses of PDS from the power loss determination method
3.23
P
LT,Mot
total losses of a motor according to EN 60034-2-1, method 2-1-1B when supplied by a converter (non
sinusoidal power supply)
8

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
3.24
Semi Analytical Model
SAM
model for determining energy efficiency characteristics of a specific motor system or driven
equipment, based on mathematical equations and/or measured data

3.25
t
w
working time of an equipment
3.26
T
i
torque [Nm] at operating point i
3.27
timefraction
i
percentage of time when the extended product is operated at one specific operating point i
4 Requirements for the development of energy efficiency standards for
extended products
4.1 General
This document specifies a methodology to determine the energy efficiency index of an application,
based on the concept of semi analytical models (SAM). The methodology shall be referred to as the
extended product approach (EPA).
This document also specifies the responsibilities and tasks of the different stakeholders creating or
using these extended products standards, as well as the data flows in-between.
a) Specific information about the equipment shall be considered:
1) The torque versus speed profile of the driven equipment as specified by the manufacturer of
the driven equipment or the extended product technical committee.
2) The losses of the motor system or its constituents (Motor, CDM or starter) at reference part-
load operating points. These shall be provided by the different manufacturers as specified in
EN 50598-2.
3) The duty profile of the driven equipment. The extended product standards committee can for
example define typical applications of their extended products, each associated with a typical
duty profile
b) The extended product approach shall be used to determine an energy efficiency indicator (losses,
efficiency, energy consumption…):
1) EN 50598-2 specifies the methods for the determination of losses of the motor system using
measurement and/or calculations.
2) extended product standardization committees shall define how to combine the losses of the
motor system and the losses of the load to obtain an overall energy efficiency aspects related
indicator for the extended product within the defined application.
The interactions between the different stakeholders of the extended product approach are shown in
Figure C.1.
9

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
4.2 Responsibility of the driven equipment technical committee
Based on the general principles described in this standard it shall be the responsibility of the driven
equipment technical committee to standardize the methodology to calculate the EEI of the extended
product based on a semi analytical model of the driven equipment.
The product committee shall specify and standardize:
 one or more torque versus speed profiles (load profiles) as described in 5.2 considering typical
loads;
 one or more duty profiles as described in 5.3 considering the typical extended product service
conditions;
 an appropriate method for determining the losses at intermediate operating points based on the
data from the motor, CDM and PDS. See for example the methods in 7.3;
 a semi analytical model for the extended product considering the extended product approach
(EPA) as described in Clause 7, based on the eight torque versus speed operating points as
specified according to EN 50598-2 for the motor system;
 a method for determining an energy efficiency indicator for the extended product under their
responsibility; see Annex B for example.
NOTE The motor system data might consist of PDS data as well as individual data for CDM and motor. EN 50598-2 provides
information about the determination of PDS data based on individual motor and CDM data.
4.3 Elements included in the extended product approach
The semi analytical model (SAM) model of the driven equipment developed by the technical
committee responsible for the extended product combines the information given by the CDM/PDS
manufacturer according to EN 50598-2 in the operating points for the motor system. Other operating
points can be calculated if needed according to 7.3.
To determine the overall losses or efficiency of an extended product implemented in an application it is
required to go through several steps:
Several elements shall be combined:
a) The SAM of the Motor System, specified in EN 50598-2, giving its relative losses at several
standardized operating points. The motor system can be a power drive system (PDS) or can
consist of a motor and a motor starter (contactor, softstarter…):
1) When the motor system is a PDS, the calculation of the losses is the sum of the losses of the
CDM and motor or the total losses of the complete PDS.
2) When the motor system is based on a motor starter, the calculation of the losses is simpler;
there is no need to use any reference motor starter.
b) The SAM of the driven equipment (pump, compressor, fan…), giving the losses or efficiency of
the load machine at typical operating points. It is the responsibility of the associated product
committee.
c) The extended product approach, combining the SAM of the motor system and the SAM of the
driven equipment (and also if necessary relative losses for the coupling). It is the responsibility of
the manufacturer of the extended product. The extended product approach uses application-
related data (required operating points, duty profile, working time …), in order to determine the
energy efficiency index of the application. This index allows comparing the energy efficiency
aspects of several motor systems for a given application, or several modes of operation of a given
extended product.
10

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
Table 2 — Illustration how to combine essential elements of the efficiency contributions
Elements Input Output Reference Responsibility
required for the
extended
product
approach
SAM of the Characteristics of relative losses of the EN 50598-2 motor system
Motor System the motor system motor system at product committee
(physical standardized
components, rated operating points
powers…)
SAM of the
output of the SAM relative losses of the EP standard load machine
extended of the motor system EP at standardized associated product
product (EP) and characteristics operating points committee (e.g.
of the driven CEN TC 197)
equipment (load
machine)
extended output of the SAM energy efficiency EP standard extended product
product of the EP, and index of extended associated product
approach requirements about product for the committee (e.g.
the application (duty application CEN/TC 197)
profiles, operating
time, etc. and
tolerances

5 Requirements for the semi analytical model (SAM) of the extended product
5.1 General
The SAMs for the subparts of the extended product are necessary in order to determine the overall
power losses of the extended product.
The following chapter describes the basic requirements which shall be fulfilled while specifying the
SAM of the extended product.
The EPA of the extended product shall include the following aspects:
 typical torque versus speed profile (operating profile) of the driven equipment
 the embedded relative losses of the motor system according to the data determined according to
EN 50598-2.
The outcome of the SAM shall be used to calculate the energy efficiency index (EEI) which shall be
able to quantitatively distinguish between typical solutions for an application for which the extended
product is efficient and those for which the extended product is inefficient.
The EEI value shall be given in a metric scheme which allows displaying the value in the user's
documentation or the catalogue.
The tolerances of the EEI shall be specified by the standardization committee of the extended product.
To judge a system regarding energy efficiency aspects all components of the system shall be taken
into account. Speed regulation by using a power drive system (PDS) is advantageous in some cases,
but on the other hand it also creates additional losses.
The energy savings that can be achieved are very often depending on the operating point OP at which
the extended product is operated as required by the application.
11

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
Therefore the information about the application and its duty shall be provided by technical committees
determining the SAM for the application specific extended product.
Two application-related characteristics are particularly useful for describing the extended product and
the way it is operated:
a) The torque or power versus speed profile. This curve describes how the torque required by the
driven equipment depends on its speed. It essentially depends on the type of driven equipment.
b) The duty profile. This graph describes the various power levels required by the driven
equipment, including standby, and the fraction of time during which the equipment is operated at
these levels. The duty profile essentially influences the sizing of the motor system and on how the
extended product is operated in practice.
These two characteristics can be used as input data to derive the right motor control equipment of the
extended product in terms of energy efficiency performance.
5.2 Torque/Power versus speed profiles
The torque or power versus speed profile describes how the torque T or power P required by the
driven load varies with its speed n. The power is also the product of torque and speed.
Most of the existing driven equipments can be categorized into one of the basic torque and power vs
speed profiles shown in Figure 3.

Figure 3 — Typical torque/power vs. speed profiles for different extended products
12

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SIST EN 50598-1:2015
EN 50598-1:2014 (E)
5.3 Operating points over time
The desired behavior of the extended product, as well as the characteristics of the motor, defines one
or several operating points at which the motor will have to be operated.
Depending on the process demands the motor may not be running at rated output power all the time.
Part load in the sense of this standard is a situation where the application requires reduced torque
and/or speed compared to the rated values.
The efficiency of an extended product strongly depends on the load level. Furthermore, stand-by (SB)
losses of soft starters and CDMs shall be taken into account. They are present in periods where the
power part is disabled but the control is still supplied. Stand by losses are losses generated by e.g. the
power supply of the control part.
Therefore, to estimate the efficiency of an extended product and compare several potential control
solutions, it is essential to know which levels of mechanical and electrical power are needed by the
extended product and in which time fraction. This is the purpose of the operating points ov
...

SLOVENSKI STANDARD
oSIST prEN 50598-1:2014
01-januar-2014
(NRORãNRVQRYDQMH(FRGHVLJQPRWRUQLKSRJRQVNLKVLVWHPRYPRWRUQLK
]DJDQMDOQLNRYPRþQRVWQHHOHNWURQLNHLQQMLKRYHDSOLNDFLMHNLMLKWLSRJDQMDMR
GHO6SORãQH]DKWHYH]DGRORþLWHYVWDQGDUGRYHQHUJLMVNHXþLQNRYLWRVWLPRWRUQR
JQDQHRSUHPH]XSRUDERUD]ãLUMHQHJDSURL]YRGQHJDSULVWRSD(3$LQ
SRODQDOLWLþQHJDPRGHOD6$0
Ecodesign for power drive systems, motor starters, power electronics & their driven
applications - Part 1: General requirements for setting energy efficiency standards for
power driven equipment using the extended product approach (EPA), and semi analytic
model (SAM)
Ökodesign für Antriebssysteme, Motorstarter, Leistungselektronik und deren
angetriebene Einrichtungen -- Teil 1: Allgemeine Anforderungen für die Erstellung von
Normen zur Energieeffizienz von Ausrüstungen mit Elektroantrieb nach dem erweiterten
Produktansatz (EPA) und semi-analytischen Modellen (SAM)
Ecoconception des entraînements électriques de puissance, des démarreurs de moteur,
de l'électronique de puissance et de leurs applications entraînées -- Partie 1: Exigences
générales pour définir les normes d'efficacité énergétique d'un équipement entraîné via
l'approche produit étendu (EPA) et par le modèle semi-analytique (SAM)
Ta slovenski standard je istoveten z: prEN 50598-1:2013
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
31.020 Elektronske komponente na Electronic components in
splošno general
oSIST prEN 50598-1:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 50598-1:2014

---------------------- Page: 2 ----------------------
oSIST prEN 50598-1:2014
 DRAFT
EUROPEAN STANDARD
prEN 50598-1

NORME EUROPÉENNE
September 2013
EUROPÄISCHE NORM

ICS


English version

Ecodesign for power drive systems, motor starters, power electronics &
their driven applications -
Part 1: General requirements for setting energy efficiency standards for
power driven equipment using the extended product approach (EPA), and
semi analytic model (SAM)

Ecoconception des entraînements To be completed
électriques de puissance, des démarreurs
de moteur, de l'électronique de puissance
et de leurs applications entraînées -
Partie 1: Exigences générales pour définir
les normes d'efficacité énergétique d'un
équipement entraîné via l'approche
produit étendu (EPA) et par le modèle
semi-analytique (SAM)

This draft European Standard is submitted to CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2014-02-21.

It has been drawn up by CLC/TC 22X.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national
standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own
language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to
change without notice and shall not be referred to as a European Standard.



CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Project: 24602 Ref. No. prEN 50598-1:2013 E

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oSIST prEN 50598-1:2014
prEN 50598-1:2013 (E)
prEN/TS/TR Reference Number (if available) : prEN 50598-1:2013
Database Work Item Number : 24602
English Title : Ecodesign for power drive systems, motor starters,
power electronics & their driven applications -- Part 1:
General requirements for setting energy efficiency
standards for power driven equipment using the
extended product approach (EPA), and semi analytic
model (SAM)
French Title (if available):

German Title (if available):


1

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oSIST prEN 50598-1:2014
prEN 50598-1:2013 (E)
1 Contents Page
2 Foreword.3
3 1 Scope .4
4 2 Normative references .4
5 3 Terms, definitions, symbols, units and abbreviated terms .4
6 4 Requirements for the development of energy efficiency standards for extended products .7
7 4.1 General .7
8
4.2 Responsibility of the Extended Product technical committee .8
9 4.3 Elements to achieve the Extended Product Approach .9
10 5 Requirements for the semi analytical model (SAM) of the extended product . 10
11 5.1 General . 10
12
5.2 Torque/Power versus speed profiles . 11
13 5.3 Histogram of time dependent operating conditions, the duty profile . 12
14 6 Requirements for the semi analytical model (SAM) of the motor system . 13
15 6.1 General . 13
16
6.2 Operating points of the PDS . 13
17 6.3 Requirements if the motor system contains no CDM . 13
18 7 Merging the semi analytical models (SAMs) to the extended product approach . 14
19 7.1 General . 14
20
7.2 Speed versus torque loss points of a motor system . 15
21 7.3 How to determine intermediate speed versus torque loss points of a motor system . 16
22 7.3.1 Loss determination by maximum losses of neighboured loss points . 17
23 7.3.2 Loss determination by two-dimensional interpolation of losses of
24 neighboured loss points . 17
25 Annex A (informative)  Example how to apply the SAM in the EPA for pump systems with a
26
required speed versus torque loss points using the PDS . 18
27 Annex B (informative)  Calculation of the energy consumption based on the duty profile . 20
28
29
2

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30 Foreword
31 This document [prEN 50598-1:2013] has been prepared by CLC/TC 22X "Power electronics".
32 This document is currently submitted to the Enquiry.
33 This document has been prepared under a mandate given to CENELEC by the European Commission
34 and the European Free Trade Association, and supports essential requirements of EU Directive(s).
35 The TC22X Working Group 6 as being the standardization Task Force for dealing with the Mandate
36 M/476 from European Commission for standardization in the field of variable speed drives and/or
37 Power Drive System products has been set a close collaboration with several other technical
38 committees (i.e. CLC/TC2; CLC/TC17B; CEN TC 197) in order to provide a comprehensive standard
39 for energy efficiency and eco design requirements.
40 Key points:
41  Requirements how to achieve technical requirements for energy efficiency of any kind of driven
42 equipment with an embedded motor system
43  Requirements for the link from the motor system to the driven equipment in order to determine the
44 Energy Efficiency Index (EEI) of the extended product
45  Requirements for the Semi Analytical Model (SAM) of the driven equipment
46 The Cenelec TC22X Technical Committee has circulated on last 2010-03-31 for a short period of time
47 the CLC/TC22X/Sec0100/DC document including the Mandate M/476 from European Commission for
48 standardization in the field of variable speed drives and/or Power Drive System products.
49 As the PDS contains also converter driven motors, the additional requirements for setting the energy
50 efficiency for those motors with non sinusoidal fed and the labelling for the whole PDS are also
51 included. This covers the requirements coming from the Mandate M/470.
52 The document is based on the Cenelec Technical board document referenced BT137/DG8058/INF
53 also reproducing this EC Mandate.
54 The TC22X Working Group 6 as being the standardization Task Force for dealing with this Mandate
55 has anticipated that a close collaboration with several other technical committees being involved in the
56 driven system (i.e. CEN TC 197: CLC/TC2; CLC/TC17B) is beneficial and follows the system wise
57 progress.
3

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oSIST prEN 50598-1:2014
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58 1 Scope
59 This part of EN 50598 provides the general requirements to energy efficiency standardization for any
60 extended product by using the guidance of the extended product approach (EPA).
61 It enables product committees for driven equipment with embedded motor systems (so called
62 extended products) to interface with the relative power losses of the embedded motor system (e.g.
63 PDS) in order to calculate the system energy efficiency for the whole application.
64 This shall be based on specified calculation models for speed/load profiles, the duty profiles and
65 relative power losses of appropriate torque versus speed operating points.
66 This part of EN 50598 specifies the methodology of determination of losses of the extended product
67 and its sub-parts.
68 This part of EN 50598 does not specify requirements for environmental impact declarations.
69 2 Normative references
70 The following documents, in whole or in part, are normatively referenced in this document and are
71 indispensable for its application. For dated references, only the edition cited applies. For undated
72 references, the latest edition of the referenced document (including any amendments) applies.
73 prEN 50598-2:2013, Ecodesign for power drive systems, motor starters, power electronics & their
74 driven applications -- Part 2: Energy efficiency indicators for power drive systems and motor starters
75 IEC EN 60034-1, Rotating electrical machines: Rating and specifications
76 IEC EN 60034-2, Rotating electrical machines: Efficiency determination
77 IEC EN 61800-2, Adjustable speed electrical power drive systems - Part 2: General requirements -
78 Rating specifications for low voltage adjustable frequency a.c. power drive systems
79 3 Terms, definitions, symbols, units and abbreviated terms
80 For the purposes of this document, the terms and definitions given in IEC 60050(161) and the
81 following apply.
82 3.1
83 Energy Efficiency Index
84 EEI
85 value describing the energy efficiency of an application, resulting from the Extended Product Approach
86 (EPA)
87 Note 1 to entry; If the extended product is a pump system, the EEI is the ratio of the demanded energy (actual plus
88 losses) to the theoretical energy required for the application.
4

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prEN 50598-1:2013 (E)
89 3.2
90 Extended Product
91 EP
92 driven equipment together with its embedded motor system (e.g a PDS) is defined as the extended
93 product, see Figure 1.

EExtxtenenddeded PPrroodduuctct
MMoottoorr S Syysstteemm
PPoowweerr D Drriive Sve Systystemem ( (PPDDSS))
DDrriivveenn e eqquuiippmmeenntt
CoCommpplleettee Dr Driivvee M Moodduullee ( (CDMCDM))
BBasiasicc
FFeedieedinn
MaMaiinns s & &
TTrransans-- Load Load
AuAuxixill-- DriDrivvee AuAuxixill--
MMototoorr
mamaiinns s g g
mmisisssiioonn MMacachihinene
iiarariieses MModuodullee iiarariieses
ssececttiionon
ccablabliingng
((BDMBDM))
MoMototorr SSttaarrtterer
((ccontontacacttoror, ,
sosoffttststaartrteerr……))
MMoottoorr C Coonnttrrooll S Syysstteemm = = C CDDMM o orrSSttaarrtteerr
94
95 Figure 1 — Illustration of the Extended Product with embedded Motor System
96 3.3
97 Extended Product Approach
98 EPA
99 methodology to determine the Energy Efficiency Index (EEI) of the Extended Product (EP) using the
100 speed torque profiles of the driven equipment, the relative power losses of the motor system and the
101 duty profile of the application.
102 3.4
103 P
Electrical
104 Power consumption [kW] of an application over time
105 3.5
106 P
Electrical Max
107 Power consumption [kW] at 100 % speed and 100 % load
108 3.6
109 P
i
110 Power consumption [kW] at operating point i
111 3.7
112 P
in,CDM
113 Input power of the CDM from the power loss measurement
114 3.8
115 P
in,PDS
116 Input power of the PDS from the power loss measurement
117 3.9
118 P
L,control
119 Power losses of the control
5

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oSIST prEN 50598-1:2014
prEN 50598-1:2013 (E)
120 3.10
121 P
n
122 Nominal Power of an equipment which is typical for its population of the same rating (see IEC 60034-1
123 for motors)
124 3.11
125 P
out,CDM
126 Output power of CDM from the power loss measurement
127 3.12
128 P
out,PDS
129 Output power of PDS from the power loss measurement
130 3.13
131 P
r
132 Rated Power of equipment which is assigned by its manufacturer
133 3.14
134 P
Reference
135 power consumption used for reference, defined by the extended product committee
136 3.15
137 P
L
138 Electrical power losses with the indices CDM dedicates it to the complete drive module, Mot dedicates
139 it to the motor, Aux dedicates it to the auxiliary devices like cables, transformers or filters. The relative
140 power losses are the per unit losses relative to the nominal power of the device
141 3.16
142 P
L,CDM
143 Power losses of a CDM
144 3.17
145 P
L,CDM, determined
146 Power losses of CDM from the power loss determination method
147 3.18
148 p
L,CDM,relative
149 Power losses of the CDM, referred to its rated apparent power
150 3.19
151 P
L,inverter
152 Power losses in the inverter section of a CDM
153 3.20
154 P
L,PDS, determined
155 Power losses of PDS from the power loss determination method
156 3.21
157 P
LT,Mot
158 Total losses of a motor according to EN 60034-2-1 (edition 2), method 2-1-1B when supplied by a
159 converter (non sinusoidal power supply)
6

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oSIST prEN 50598-1:2014
prEN 50598-1:2013 (E)
160 3.22
161 Semianalytical model
162 SAM
163 determination model for the losses of a motor system or a driven equipment
164 Note 1 to entry; SAMs include physical and mathematical parameters and calculation algorithm of the subparts of
165 an EP. SAMs are necessary to determine the typical relative power losses of the subparts of an EP in order to
166 determine its overall losses.
167 3.23
168 t
w
169 Working time of an equipment
170 3.24
171 T
i
172 Torque [Nm] at operating point i
173 3.25
174 Timefraction
i
175 Percentage of time an extended product is operated at one specific operating point i
176 4 Requirements for the development of energy efficiency standards for
177 extended products
178 4.1 General
179 This document specifies a methodology to determine the Energy Efficiency Index of an application,
180 based on the concept of Semi Analytical Models (SAM). The methodology shall be referred to as the
181 Extended Product Approach (EPA).
182 The responsibilities and tasks of the different stakeholders creating or using these Extended Products
183 standards, as well as the data flows in-between are required.
184 a) Specific information about the equipment shall be considered:
185  The torque versus speed profile of the driven load as specified by the load manufacturer or
186 Extended Product technical committee.
187  The losses of the Motor System or its constituents (Motor, CDM or starter) at reference part-
188 load operating points. These shall be provided by the different manufacturers as specified in
189 EN 50598-2.
190 b) Information about the driven equipment shall be considered:
191  The duty profile of the driven equipment. The Extended product standards committee can for
192 example define typical applications of their Extended Products, each associated with a typical
193 duty profile
194 c) Extended Product Approach shall be used to determine an energy efficiency indicator (losses,
195 efficiency, energy consumption…):
196  EN 50598-2 specifies the methods for the determination of losses of the Motor System using
197 measurement and/or calculations.
198  Extended Product standards committees shall define how to combine the losses of the Motor
199 System and the losses of the load to obtain an overall energy efficiency related indicator for
200 the Extended Product within the defined application.
7

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201 The interactions between the different stakeholders are shown in Figure 2 .

Note: Motor and
EN 5xxxx-2
CDM manufacturers
standard

can provide data
Motor manufacturer

directly to the For specifying part load
Losses at standardized
operating points, at which
motor system
operating points

 motor losses are required
manufacturer

RCDM relative
Torque producing
p L, RCDM (90; 100)
cur rent / % p p
L, RCDM (0;100) L, RCDM (50; 100)
100

Note: If the motor p p p
L, RCDM (0; 50) L, RCDM (50; 50) L, RCDM (90; 50)
50
p p
L, RCDM (0; 25) L, RCDM (50, 25)
25
system is based on a
RCDM relative
Motor stator
frequency / %
  50 90 100
starter, then only
the motor losses are
needed as input to
PDS manufacturer
Extended Product manufacturer
CDM manufacturer
the EPA.
Motor system
characteristics
EN 5xxxx-2 EN 5xxxx-2
For determining
motor system losses standard standard
Load machine
characteristics
For determining CDM losses
using the Test load
EN 5xxxx-1
General procedure
standard
for SAM and EPA
Extended Product standard
Extended Product standard
Extended Product
defines standardized applications
defines standardized applications
standard committee shall write
and EEI evaluation methods
and EEI evaluation methods
EN 5xxxx-2
standard
EEI of the physical Extended Product
For combining individual
within the standardized applications
motor and control system
202
203 Figure 2 — Stakeholders and responsibilities for determination
204 of the energy efficiency indicator for an Extended Product
205 4.2 Responsibility of the Extended Product technical committee
206 Based on the general principles described in this standard it shall be the responsibility of the Extended
207 Product standard committee to specify the Semi Analytical Model of the driven load and of the
208 Extended Product for the product-specific application(s).
209 The product committee shall specify and standardize:
210  Permissible tolerances for the part-load losses of the Motor System as defined in
211 prEN 50598-2:2013, Clause 4.
212  One or more Torque versus speed profiles (load profiles) as described in 5.2 considering typical
213 loads.
214  One or more duty profiles as described in 5.3 considering typical service conditions.
215  An appropriate method for determining the losses at intermediate operating points based on the
216 data from the motor, CDM and PDS. See 7.3
217  A Semi-analytic model for the Extended Product considering the Extended Product Approach
218 (EPA) as described in Clause 7, using the part-load operating points of the Motor System as
219 determined according to prEN 50598-2:2013, Clause 9.
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220  A method for determining an energy efficiency indicator for the Extended Product under their
221 responsibility. See Annex B for example.
222 NOTE The motor system data might consist of PDS data as well as individual data for CDM and motor.
223 EN 50598-2 provides information about the determination of PDS data based on individual motor and CDM data
224 The number of part-load operating points used by the Semi-Analytic Model of the Extended Product
225 shall be limited to an appropriate choice out of maximum eight points.
226 4.3 Elements to achieve the Extended Product Approach
227 The Semi Analytical Model (SAM) model of the Extended Product allows combining the losses at the
228 reference operating points to derive the losses at any other operating point. Elements required for the
229 Extended Product Approach are described in Table 1 and Figure 7.
230 To determine the overall losses or efficiency of an Extended Product implemented in an application it
231 is required to go through several steps:
232 Several elements shall be combined:
233 a) The SAM of the Motor System, specified in EN 50598-2, giving its relative losses at several
234 normalized operating points. The motor system can be a Power Drive System (PDS) or can
235 consist of a motor and a motor starter (contactor, softstarter…)
236  When the motor system is a PDS, the SAM of the motor system is based on the concept of
237 reference PDS (RPDS). It is a “typical” PDS to which the physical PDS under consideration is
238 compared in terms of energy efficiency.
239  When the motor system is based on a motor starter, the calculation of the losses is simpler;
240 there is no need to use any reference motor starter.
241 b) The SAM of the driven equipment (pump, compressor, fan…), giving the losses or efficiency of
242 the load machine at typical operation. It is the responsibility of the equipment manufacturer or the
243 associated product committee.
244 c) The Extended Product Approach, combining the SAM of the Motor System and the SAM of the
245 driven equipment (and also if necessary efficiency values for the coupling). It is the responsibility
246 of the manufacturer of the Extended Product or the associated Product Committee. The Extended
247 Product Approach uses application-related data (required operating points, duty profile, working
248 time, …), in order to determine the Energy Efficiency Index of the application. This index allows
249 comparing the energy efficiency of several motor systems for a given application, or several
250 modes of operation of a given extended product.
251
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252 Table 1 — Illustration how to combine essential elements of the efficiency contributions
Elements Input Output Reference Responsibility
required for the
Extended
Product
Approach
SAM of the Characteristics of
relative losses of the EN 50598-2 Motor system
Motor System the motor system motor system at Product Committee
(physical standardized
components, rated operating points
powers…)
SAM of the EP output of the SAM relative losses of the EP standard Load machine
of the motor system EP at standardized associated Product
and characteristics operating points Committee (e.g.
of the driven CEN TC 197)
equipment (load
machine)
Extended output of the SAM Energy Efficiency EP standard Extended product
Product of the EP, and Index of extended
associated Product
Approach requirements about product for the Committee (e.g.
the application (duty application CEN TC 197)
profiles, operating
time, etc. and
tolerances
253
254 5 Requirements for the semi analytical model (SAM) of the extended product
255 5.1 General
256 SAMs are necessary to determine the typical relative power losses of the subparts according to the
257 extended product approach in order to determine its overall losses.
258 The following chapter describes the basic requirements which shall be fulfilled while specifying the
259 SAM of the extended product.
260 The SAM of the extended product shall include the following aspects:
261  average operating (service) conditions to derive the losses of the driven equipment
262  typical torque versus speed profile (operating profile) of the driven equipment
263  typical histogram of required power versus time (the duty profile) of the driven equipment
264  typical tolerance of the loss parameters of the driven equipment
265  the embedded relative losses of the motor system according to the data determined according to
266 EN 50598-2.
267 The outcome of the SAM shall be used to calculate the energy efficiency index (EEI) which shall be
268 able to quantitatively distinct between typical efficient and typical inefficient applications.
269 The EEI value shall be given in a metric scheme which allows displaying the value in the user's
270 documentation or the catalogue.
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prEN 50598-1:2013 (E)
271 The tolerances shall be considered appropriately when moving from one value to another value.
272 To judge a system concerning energy efficiency all components of the system have to be taken into
273 account. Speed regulation by using a power drive system (PDS) is advantageous in a plurality of
274 cases, but on the other hand it also creates additional losses.
275 The energy savings that can be achieved are very often depending on the operating point OP at which
276 the extended product is operated as required by the application.
277 Therefore it is necessary to have information about the application and its duty and shall be provided
278 by technical committees determining the SAM for the application specific extended product.
279 Two application-relative characteristics are particularly useful for describing the extended product and
280 the way it is operated:
281 a) The torque or power versus speed profile. This curve describes how the torque required by a
282 machine depends on its speed. It essentially depends on the type of machine (motor, pump,
283 fan…).
284 b) The Duty Profile. This graph describes the various power levels required by the application,
285 including standby, and the fraction of time during which the machine is operated at these levels.
286 The duty profile essentially depends on the sizing of the motor and on how the extended product
287 is operated in practice.
288 These two characteristics can be used as input data to compare potential control solutions in terms of
289 energy efficiency.
290 5.2 Torque/Power versus speed profiles
291 In general the extended products shall be characterized by the following basic torque versus speed
292 characteristics shown in Figure 3. The mechanical output power is the product of torque and speed.
293
294 Figure 3 — Typical torque/power vs. speed profiles for different extended products
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oSIST prEN 50598-1:2014
prEN 50598-1:2013 (E)
295 5.3 Histogram of time dependent operating conditions, the duty profile
296 Depending on the point of operation, the extended product may not operate at full load or part load for
297 the whole time of operation.
298 Part load in the sense of this standard is a situation where the extended product demands reduced
299 torque and/or speed according to its load profile and not its nominal values.
300 Furthermore different operating modes over time fraction shall be considered.
301 To calculate the needed electrical energy, the individual required electrical powers shall be multiplied
302 with their time span. Time fractions in percentage shall be based on the whole operating time in one
303 productive year of the installation.
304 The duty profile shall be a graph describing the different levels of mechanical power required by the
305 extended product, and the time during which the application is operated at each of these points. An
306 example
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