SIST EN IEC 61362:2024

Guide to specification of hydraulic turbine governing systems

IEC 61362:2024 includes relevant technical data necessary to describe hydraulic turbine governing systems and to define their performance. It is aimed at unifying and thus facilitating the selection of relevant parameters in bidding specifications and technical bids. It will also serve as a basis for setting up technical guarantees. The scope of this standard is restricted to the turbine governing level. Additionally some remarks about the control loops of the plant level and about primary and secondary frequency control (see also Annex B) are made for better understanding without making a claim to be complete. Important topics covered are:
- speed, power, water level, opening and flow (discharge) control for reaction and impulse-type turbines including double regulated machines;
- means of providing actuating energy;
- safety devices for emergency shutdown.
To facilitate the setting up of specifications, this guide also includes data sheets, which are to be filled out by the customer and the supplier in the various stages of the project and the contract. Acceptance tests, specific test procedures and guarantees are outside the scope of the guide; those topics are covered by IEC 60308. This third edition cancels and replaces the second edition published in 2012. This edition includes the following significant technical changes with respect to the previous edition: adoption of parts of IEC 60308:2005 which deal with specification matters; introduction of several new technical topics; and overall editorial revision.
Keywords: Hydraulic turbine, Hydraulic turbine governing systems.

Leitfaden zur Spezifikation der Regeleinrichtung von Wasserturbinen

Guide pour la spécification des systèmes de régulation des turbines hydrauliques

La IEC 61362:2024 contient les données techniques nécessaires pour décrire les systèmes de régulation des turbines hydrauliques et définir leurs performances. Elle a pour but d'unifier et ainsi de faciliter les spécifications des appels d'offres et les offres techniques. Elle servira également de base pour fixer les garanties techniques. Le domaine d'application de la présente norme est limité au niveau du régulateur turbine. En outre, des remarques sur les boucles de contrôle au niveau de la centrale ainsi que sur le réglage de fréquence primaire et secondaire (voir aussi l'Annexe B) apportent une meilleure compréhension sans avoir la prétention d'être exhaustives. Le guide traite les fonctions importantes suivantes:
- les régulations de vitesse, puissance, niveau d'eau, ouverture et débit (décharge) des turbines à réaction et des turbines à action, y compris les machines à double régulation;
- les moyens de production de l'énergie de manoeuvre;
- les dispositifs de sécurité pour l'arrêt d'urgence, etc.
Pour faciliter la rédaction des spécifications, ce guide inclut des formulaires de données à remplir par le client et par le fournisseur aux différentes étapes du projet et du contrat. Les essais de réception, les procédures d´essais spécifiques et les garanties ne sont pas traités par le guide mais par la CEI 60308. Cette troisième édition annule et remplace la seconde édition parue en 2012.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: prise en compte des paragraphes de la deuxième édition de l’IEC 60308 parue en 2005 qui traitent des questions de spécification; présentation de plusieurs nouveaux sujets techniques; et révision rédactionnelle complète.
Mots clé: turbines hydrauliques, systèmes de régulation des turbines hydrauliques.

Vodilo za specificiranje sistemov za krmiljenje hidravličnih turbin

General Information

• Status: Not Published
• Public Enquiry End Date: 07-Sep-2023
• ICS: 27.140 - Hydraulic energy engineering
• Technical Committee: IEHT - Electrotechnics - Hydraulic turbins
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 30-Oct-2024
• Due Date: 04-Jan-2025
• Ref Project: EN IEC 61362:2024 - Guidelines to specification of hydraulic turbine governing systems

Relations

• Revises: SIST EN 61362:2012 - Guide to specification of hydraulic turbine governing systems
• Effective Date: 18-Apr-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 61362:2023
01-september-2023
Vodilo za specificiranje sistemov za krmiljenje hidravličnih turbin
Guide to specification of hydraulic turbine governing systems
Leitfaden zur Spezifikation der Regeleinrichtung von Wasserturbinen
Guide pour la spécification des systèmes de régulation des turbines hydrauliques
Ta slovenski standard je istoveten z: prEN IEC 61362:2023
ICS:
27.140 Vodna energija Hydraulic energy engineering
oSIST prEN IEC 61362:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 61362:2023
oSIST prEN IEC 61362:2023
4/469/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61362 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-06-16 2023-09-08
SUPERSEDES DOCUMENTS:
4/429/CD, 4/468/CC
IEC TC 4 : HYDRAULIC TURBINES
SECRETARIAT: SECRETARY:
Canada Mrs Christine Geraghty
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 2,TC 57,TC 114
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Guide to specification of hydraulic turbine governing systems

PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it,
for any other purpose without permission in writing from IEC.

oSIST prEN IEC 61362:2023
IEC CDV 61362/Ed3 © IEC:2023 – 2 – 4/469/CDV
1 CONTENTS
3 FOREWORD . 7
4 INTRODUCTION . 9
5 1 Scope . 10
6 2 Normative references . 11
7 3 Terms and definitions . 12
8 3.1 General terms and definitions . 12
9 3.1.1 Turbine governing system . 12
10 3.2 Terms and definitions related to control levels, control modes and
11 operational modes . 12
12 3.2.1 Control levels . 12
13 3.2.2 Control modes at the turbine governing level . 13
14 3.2.3 Main Operation modes . 13
15 3.3 Terms and definitions from control theory . 13
16 3.3.1 Differential equation . 13
17 3.3.2 Transient response . 13
18 3.3.3 Frequency response . 14
19 3.3.4 Transfer function . 14
20 3.4 Subscripts and prefixes . 14
21 3.5 Terms and definitions related to the plant and the units . 14
22 3.6 Terms and definitions relating to the governing system . 17
23 4 Governing system structure . 27
24 4.1 General . 27
25 4.2 Main control functions . 27
26 4.2.1 General . 27
27 4.2.2 Speed control . 27
28 4.2.3 Power output control . 27
29 4.2.4 Opening control . 28
30 4.2.5 Water level control . 28
31 4.2.6 Flow control . 28
32 4.3 Configurations of combined controllers . 28
33 4.3.1 General . 28
34 4.3.2 Parallel structure . 29
35 4.3.3 Series structures . 29
36 4.4 Special control functions . 30
37 4.4.1 Feed Forward Control . 30
38 4.4.2 Surge tank level or pressure feedback . 30
39 4.5 Pump Turbine Control . 31
40 4.5.1 General . 31
41 4.5.2 Conventional Pump Turbine Control . 32
42 4.5.3 Variable speed pump turbine control . 32
43 4.6 Manual control . 33
44 4.7 Linearization . 34
45 4.8 Limitation functions . 34
46 4.9 Bumpless control modes transition . 34
47 4.10 Optimization control . 35

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IEC CDV 61362/Ed3 © IEC:2023 – 3 – 4/469/CDV
48 5 Functional performance . 36
49 5.1 General . 36
50 5.2 Modelling and digital simulation . 36
51 5.2.1 General . 36
52 5.2.2 Water passages . 37
53 5.2.3 Turbine, generator, electrical grid . 37
54 5.2.4 Control concept . 37
55 5.2.5 Hardware-in-the-loop simulation . 38
56 5.2.6 Personnel training . 38
57 5.2.7 Inaccuracy of plant simulators . 38
58 5.3 Characteristic parameters for PID-controllers . 39
59 5.3.1 General . 39
60 5.3.2 Permanent droop . 39
61 5.3.3 Proportional action coefficient K , integral action time T , and derivative
P I
62 action time T . 40
D
63 5.3.4 Tuning of turbine governing systems . 40
64 5.4 Other parameters of the governing systems . 41
65 5.4.1 Command signal adjustments for controlled variables (speed, power
66 output, etc.) and load limiter . 41
67 5.4.2 Governor insensitivity i /2 . 41
x
68 5.4.3 Dynamic characteristics of servo-positioner . 42
69 5.4.4 Parameters of servo-positioner . 43
70 5.4.5 Servo-positioner non-linearity by kinematics . 44
71 6 Servo Positioner Configurations . 45
72 6.1 Servo-positioners . 45
73 6.2 Configurations of servo-positioners . 45
74 6.3 Multiple actuator control . 46
75 6.3.1 General . 46
76 6.3.2 Parallel structure . 46
77 6.3.3 Series structure . 46
78 6.3.4 Individual control . 46
79 6.4 Dual regulation of turbines with controllable guide vane and runner blade
80 angles . 47
81 6.5 Dual control of turbines with needles and deflectors. 47
82 6.6 Other relationships. 47
83 7 Instrumentation. 48
84 7.1 General . 48
85 7.2 Rotational speed . 48
86 7.3 Power output . 48
87 7.4 Water level . 48
88 7.5 Actuator position (stroke) . 48
89 7.6 Signal transmission from electronic transmitters . 48
90 8 Safety functions and devices . 49
91 8.1 General . 49
92 8.2 Quick shutdown and emergency shutdown . 49
93 8.2.1 General . 49
94 8.2.2 Tripping actions . 49
95 8.2.3 Servomotor shutdown initiating devices . 49

oSIST prEN IEC 61362:2023
IEC CDV 61362/Ed3 © IEC:2023 – 4 – 4/469/CDV
96 8.2.4 Tripping criteria . 49
97 8.2.5 Tripping strategies . 49
98 8.3 Overspeed protection device . 49
99 8.4 Interlocks . 50
100 9 Provision of ac
...