EN 62116:2014

Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures

IEC 62116:2014 provides a test procedure to evaluate the performance of islanding prevention measures used with utility-interconnected PV systems. This standard describes a guideline for testing the performance of automatic islanding prevention measures installed in or with single or multi-phase utility interactive PV inverters connected to the utility grid. The test procedure and criteria described are minimum requirements that will allow repeatability. Major changes with respect to the previous edition concern the DC power source and test conditions.

Photovoltaik-Wechselrichter für den Anschluss an das Stromversorgungsnetz - Prüfverfahren für Maßnahmen zur Verhinderung der Inselbildung

Onduleurs photovoltaïques interconnectés au réseau public - Procédure d'essai des mesures de prévention contre l'îlotage

L'IEC 62116:2014 fournit une méthode d'essai pour évaluer la performance des mesures de prévention contre l'îlotage utilisées avec des systèmes PV interconnectés au réseau public. Cette norme décrit des lignes directrices pour les essais de performance des mesures de prévention contre l'îlotage automatique installées dans ou avec des onduleurs PV interactifs avec le réseau public monophasés ou multiphasés, connectés au réseau public d'électricité. La procédure et les critères d'essai décrits sont les exigences minimales qui permettent la répétabilité. Les principales modifications par rapport à l'édition précédente concernent la source d'énergie en courant continu et les conditions d'essai.

Fotonapetostni razsmerniki, povezani na omrežje - Postopki za preskušanje ukrepov proti otočnemu delovanju (IEC 62116:2014)

Namen standarda EN IEC 62116 je zagotoviti postopek za preskušanje uspešnosti ukrepov proti otočnem delovanju, ki se uporabljajo s fotonapetostnimi sistemi, povezanimi na omrežje. Ta standard opisuje smernice za preskušanje uspešnosti ukrepov proti samodejnemu otočnem delovanju, nameščenih v ali z eno- ali večfaznimi omrežnimi interaktivnimi fotovoltaičnimi razsmerniki, povezanimi na omrežje. Opisani postopek za preskušanje in kriteriji so minimalne zahteve, ki omogočajo ponovljivost. Če je dokazano, da obstaja nevarnost, je mogoče določiti dodatne zahteve ali strožje kriterije. Razsmerniki in druge naprave, ki izpolnjujejo zahteve tega standarda, so obravnavani kot neotočni, kot je definirano v standardu IEC 61727. Ta standard se lahko uporablja za druge tipe sistemov, povezanih na omrežje (npr. mikroturbina na osnovi razsmernika in gorivne celice, indukcijski in sinhroni stroji). Za vse ostale fotovoltaične sisteme, ki niso na osnovi razsmernika, se lahko zahteva tehnični pregled.

General Information

• Status: Published
• Publication Date: 24-Jul-2014
• Withdrawal Date: 01-Apr-2017
• ICS: 27.160 - Solar energy engineering
• Technical Committee: CLC/TC 82 - Solar photovoltaic energy systems
• Drafting Committee: IEC/TC 82 - IEC_TC_82
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 25-Jul-2014
• Completion Date: 25-Jul-2014
• Ref Project: SIST EN 62116:2014 - Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures

Relations

• Replaces: EN 62116:2011 - Test procedure of islanding prevention measures for utility-interconnected photovoltaic inverters
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2014
1DGRPHãþD
SIST EN 62116:2011
)RWRQDSHWRVWQLUD]VPHUQLNLSRYH]DQLQDRPUHåMH3RVWRSNL]DSUHVNXãDQMH
XNUHSRYSURWLRWRþQHPXGHORYDQMX,(&
Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention
measures
Procédure d'essai des mesures de prévention contre l'ilotage pour onduleurs
photovoltaïques interconnectés au réseau public
Ta slovenski standard je istoveten z: EN 62116:2014
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62116
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2014
ICS 27.160 Supersedes EN 62116:2011
English Version
Utility-interconnected photovoltaic inverters - Test procedure of
islanding prevention measures
(IEC 62116:2014)
Onduleurs photovoltaïques interconnectés au réseau public Photovoltaik-Wechselrichter für den Anschluss an das
- Procédure d'essai des mesures de prévention contre Stromversorgungsnetz - Prüfverfahren für Maßnahmen zur
l'îlotage Verhinderung der Inselbildung
(CEI 62116:2014) (IEC 62116:2014)
This European Standard was approved by CENELEC on 2014-04-02. 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 62116:2014 E
Foreword
The text of document 82/813/FDIS, future edition 2 of IEC 62116, prepared by IEC/TC 82 "Solar
photovoltaic energy systems" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62116:2014.
The following dates are fixed:
– latest date by which the document has to be implemented at (dop) 2015-01-25
national level by publication of an identical national
standard or by endorsement
– latest date by which the national standards conflicting with (dow) 2017-04-02
the document have to be withdrawn
This document supersedes EN 62116:2011.
Previous edition Present edition
3.7
5.1
5.4
6.1 b)
6.1 d)
6.1 e) Real power Active power
6.1 g)
Table 1
Table 6
Table 7
Table 9
A DC power source, such as a PV array
A PV array or PV array simulator (preferred) simulator, a PV array, or a current and voltage
may be used. limited DC power supply with series resistance
may be used.
If the EUT can operate in utility-interconnected
mode from a storage battery, a DC power If the EUT can operate in utility-interconnected
5.2
source may be used in lieu of a battery as long mode from a storage battery, a DC power
as the DC power source is not the limiting source may be used in lieu of a battery as long
device as far as the maximum EUT input as the DC power source shall not be the limiting
current is concerned. device as far as the maximum EUT input
current is concerned.
- 3 - EN 62116:2014
EUT input voltage 90 % EUT input voltage 75 %
EUT input voltage 10 % EUT input voltage 20 %
Table 5
EUT Trip Settings Manufacturer specified Voltage and frequency trip settings according to
voltage and frequency trip settings National standards and/or local code
Tables 6 & Percent change in real load, reactive load from Percent change in active load, reactive load
7 (Heading) nominal from nominal output power

Major changes with respect to the previous edition concern the DC power source and test conditions.
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.
Endorsement notice
The text of the International Standard IEC 62116:2014 was approved by CENELEC as a European
Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1  When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC/TS 61836 -  Solar photovoltaic energy systems - CLC/TS 61836 -
Terms, definitions and symbols

IEC 62116 ®
Edition 2.0 2014-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Utility-interconnected photovoltaic inverters – Test procedure of islanding

prevention measures
Onduleurs photovoltaïques interconnectés au réseau public – Procédure

d’essai des mesures de prévention contre l’îlotage

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX U
ICS 27.160 ISBN 978-2-8322-1442-8

– 2 – IEC 62116:2014 © IEC 2014
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Testing circuit . 9
5 Testing equipment . 11
5.1 Measuring instruments . 11
5.2 DC power source . 11
5.2.1 General . 11
5.2.2 PV array simulator . 12
5.2.3 Current and voltage limited DC power supply with series
resistance . 12
5.2.4 PV array . 12
5.3 AC power source . 13
5.4 AC loads . 13
6 Test for single or multi-phase inverter . 13
6.1 Test procedure . 13
6.2 Pass/fail criteria . 17
7 Documentation . 17
Annex A (informative) Islanding as it applies to PV systems . 20
A.1 General . 20
A.2 Impact of distortion on islanding . 21
Annex B (informative) Test for independent islanding detection device (relay) . 22
B.1 General . 22
B.2 Testing circuit . 22
B.3 Testing equipment . 22
B.3.1 General . 22
B.3.2 AC input source . 22
B.4 Testing procedure . 23
B.5 Documentation . 23
Annex C (informative) Gate blocking signal . 24
C.1 General . 24
C.2 Gate blocking signal used in photovoltaic systems . 24
C.3 Monitoring the gate blocking signal . 24
Bibliography . 25

Figure 1 – Test circuit for islanding detection function in a power conditioner (inverter) . 11
Figure B.1 – Test circuit for independent islanding detection device (relay) . 22

Table 1 – Parameters to be measured in real time . 10
Table 2 – Specification of array simulator (test conditions). 12
Table 3 – PV array test conditions . 13
Table 4 – AC power source requirements . 13
Table 5 – Test conditions . 14

IEC 62116:2014 © IEC 2014 – 3 –
Table 6 – Load imbalance (real, reactive load) for test condition A (EUT output =
100 %) . 16
Table 7 – Load imbalance (reactive load) for test condition B (EUT output = 50 % to
66 %) and test condition C (EUT output = 25 % to 33 %) . 16
Table 8 – Specification of the EUT provided by the manufacturer (example) . 17
Table 9 – List of tested condition and run on time (example) . 18
Table 10 – Specification of testing equipment (example) . 19

– 4 – IEC 62116:2014 © IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
UTILITY-INTERCONNECTED PHOTOVOLTAIC INVERTERS – TEST
PROCEDURE OF ISLANDING PREVENTION MEASURES

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as pos
...