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IEC 62270:2013

(Main)

Guide for computer-based control for hydroelectric power plant automation

Guide for computer-based control for hydroelectric power plant automation

IEC 62270:2013 addresses the application, design concepts, and implementation of computer-based control systems for hydroelectric plant automation. It addresses functional capabilities, performance requirements, interface requirements, hardware considerations, and operator training. It includes recommendations for system testing and acceptance. The electrical protective system (generator and step-up transformer) is beyond the scope of this guide. This second edition cancels and replaces the first edition published in 2004. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- update of system architecture aspects, with different process control system configurations;
- update of communications, user and plant interfaces aspects;
- suppression of case studies, because of the quickness of evolution of the technology;
- complete review of the bibliography, making mention of many IEC and IEEE standards as new references and addition of a new informative Annex B on legacy control systems. This publication is published as an IEC/IEEE Dual Logo standard. Key words: Hydroelectric, Automation, Computer-Based Control

Guide pour l'automatisation des centrales hydroélectriques à l'aide de systèmes de commande informatiques

La CEI 62270:2013 traite de l'application, la conception et la mise en eouvre de systèmes de commande informatiques destinés à l'automatisation des centrales hydroélectriques. Il décrit les capacités fonctionnelles, les exigences de performance, les exigences applicables aux interfaces, les considérations matérielles et la formation des opérateurs. Il inclut des recommandations pour les essais et la réception des systèmes. Le système de protection électrique (générateur et transformateur élévateur de tension) ne fait pas partie du domaine d'application du présent guide. Cette deuxième édition annule et remplace la première édition parue en 2004. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- mise à jour des aspects architecture du système, avec les différentes configurations du système de commande de processus;
- mise à jour des aspects communications, interfaces utilisateur et interfaces avec la centrale;
- suppression des études de cas, en raison de la rapidité d'évolution de la technologie;
- revue complète de la bibliographie, avec mention de nombreuses normes IEC et IEEE comme nouvelles références;
- ajout d'une nouvelle Annexe B informative sur les systèmes de commande obsolètes. La présente publication est une norme double logo CEI/IEEE. Mots-Clés: Hydroelectrique, Automatisation, Systemes de Commande Informatiques

General Information

Status
Published
Publication Date
15-Sep-2013
ICS
01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
27.140 - Hydraulic energy engineering
Technical Committee
TC 4 - Hydraulic turbines
Drafting Committee
WG 14 - TC 4/WG 14
Current Stage
PPUB - Publication issued
Start Date
30-Sep-2013
Completion Date
16-Sep-2013
Ref Project

Relations

Revises
IEC 62270:2004 - Hydroelectric power plant automation - Guide for computer-based control
Effective Date
05-Sep-2023

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IEC 62270:2013 - Guide for computer-based control for hydroelectric power plant automation
English and French language
148 pages
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IEC 62270
Edition 2.0 2013-09
™
IEEE Std 1249
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Guide for computer-based control for hydroelectric power plant automation

Guide pour l'automatisation des centrales hydroélectriques à l’aide de systèmes
de commande informatiques
All rights reserved. IEEE is a registered trademark in the U.S. Patent & Trademark Office, owned by the Institute of
Electrical and Electronics Engineers, Inc.

Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from the IEC Central
Office.
Any questions about IEEE copyright should be addressed to the IEEE. Enquiries about obtaining additional rights to
this publication and other information requests should be addressed to the IEC or your local IEC member National
Committee.
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IEC 62270
Edition 2.0 2013-09
IEEE Std 1249™
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Guide for computer-based control for hydroelectric power plant automation

Guide pour l'automatisation des centrales hydroélectriques à l’aide de systèmes

de commande informatiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 27.140 ISBN 978-2-8322-1077-2

IEC 62270
IEEE Std1249 – i –
CONTENTS
FOREWORD . 1
1 Overview . 3
1.1 Scope . 3
1.2 Purpose . 3
2 Terms and definitions . 3
3 System architecture . 8
3.1 General . 8
3.2 Process control system configurations . 8
3.2.1 Basic configuration . 8
3.2.2 Control system configuration alternatives . 9
3.3 System architecture characteristics . 10
3.3.1 General . 10
3.3.2 Hierarchy . 10
3.3.3 Control locations and levels . 11
3.3.4 Interface between the control system and the controlled process . 12
3.4 Local individual control . 12
3.5 Local control . 13
3.6 Central (remote) control . 13
3.7 Off-site control . 14
4 Control Functions. 14
4.1 Local control functions . 14
4.1.1 Start/stop sequencing . 14
4.1.2 Synchronizing . 15
4.1.3 Synchronous condenser mode . 15
4.1.4 Pumped storage control . 15
4.1.5 Turbine operation optimization . 16
4.1.6 Trashrack control . 16
4.1.7 Environmental control . 16
4.1.8 Black start control . 17
4.2 Centralized control functions . 17
4.2.1 Control of individual units . 17
4.2.2 Switchyard, spillway, and station service control . 18
4.2.3 Plant active power (MW) control . 18
4.2.4 Plant reactive power (Mvar) control . 18
4.2.5 Water and power optimization . 18
4.2.6 Water bypass control . 19
4.3 Offsite control functions . 19
4.3.1 Control of individual generator sets and selection of centralized control
functions . 19
4.3.2 Switchyard, spillway, and station service control . 20
4.3.3 Automatic generation control (AGC) . 20
4.3.4 Automatic voltage control (AVC) . 20

Published by IEC under license from IEEE. © 2013 IEEE. All rights reserved.

IEC 62270
– ii – IEEE Std 1249
4.3.5 Remedial action schemes (RAS) . 21
4.4 Typical control parameters . 21
4.5 Interfaces to other computerized systems . 22
4.5.1 Fire detection data . 22
4.5.2 Plant security system . 23
4.5.3 Maintenance management system . 23
4.5.4 Plant conditioning monitoring . 23
5 Data acquisition and processing . 23
5.1 Data integrity . 23
5.2 Data acquisition capabilities . 24
5.3 Analog . 24
5.4 Discrete . 25
5.4.1 Status points . 25
5.4.2 Event points . 25
5.4.3 Calculated points. 25
5.4.4 Postmortem points . 25
5.5 Alarm processing and diagnostics . 25
5.6 Report generation . 26
5.7 Data archival and retrieval . 26
5.7.1 Operation scheduling and forecasting . 26
5.7.2 Data access and security . 27
5.7.3 Operator simulation training . 27
6 Communications and data bases . 27
6.1 Overview. 27
6.2 Communications . 27
6.2.1 General . 27
6.2.2 Open system standards . 27
6.2.3 Digital communication systems at the field level . 28
6.2.4 Hydroelectric plant automation classification . 28
6.2.5 Networking and communication considerations . 29
6.2.6 Data communication functions . 30
6.2.7 Control data communication requirements . 30
6.3 Control data networks . 33
6.3.1 General . 33
6.3.2 Local area network (LAN) topologies . 33
6.3.3 Physical transmission mode . 37
6.4 Data bases and software configuration . 37
6.4.1 Open systems and data bases . 37
6.4.2 Real-time vs. nonreal-time database designs . 38
6.4.3 Software configuration . 39
7 User and plant interfaces . 40
7.1 User interfaces . 40
7.1.1 Input devices . 40
7.1.2 Output devices .
...

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