IEC/IEEE PAS 63547:2011

Interconnecting distributed resources with electric power systems

IEC/IEEE/PAS 63547:2011(E) provides interconnection technical specifications and requirements, and test specifications and requirements. It establishes criteria and requirements for interconnection of distributed resources (DR) with electric power systems (EPS).

General Information

• Status: Withdrawn
• Publication Date: 15-Sep-2011
• Withdrawal Date: 14-Jun-2018
• ICS: 29.240.99 - Other equipment related to power transmission and distribution networks
• Technical Committee: TC 8 - System aspects of electrical energy supply
• Drafting Committee: JWG 10 - TC 8/JWG 10
• Current Stage: WPUB - Publication withdrawn
• Start Date: 15-Jun-2018
• Completion Date: 18-Jun-2018

Standards Content (Sample)

IEC/IEEE/PAS 63547
Edition 1.0 2011-09
PUBLICLY AVAILABLE
SPECIFICATION
Interconnecting distributed resources with electric power systems

IEC/IEEE/PAS 63547:2011(E)
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.
IEC Central Office The Institute of Electrical and Electronics Engineers, Inc
3, rue de Varembé 3 Park Avenue

CH-1211 Geneva 20 US-New York, NY10016-5997
Switzerland USA
Email: [e-mail] Email: [e-mail]
Web: www.iec.ch Web: www.ieee.org

About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
 Catalogue of IEC publications: www.iec.ch/searchpub
The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,…).
It also gives information on projects, withdrawn and replaced publications.
 IEC Just Published: www.iec.ch/online_news/justpub
Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available
on-line and also by email.
 Electropedia: www.electropedia.org
The world's leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions
in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical
Vocabulary online.
 Customer Service Centre: www.iec.ch/webstore/custserv
If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service
Centre FAQ or contact us:
Email: [e-mail]
Tel.: [phone]
.
IEC/IEEE/PAS 63547
Edition 1.0 2011-09
PUBLICLY AVAILABLE
SPECIFICATION
Interconnecting distributed resources with electric power systems

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
V
ICS 29.240.99 ISBN 978-2-88912-687-3

– 2 – IEC/IEEE/PAS 63547:2011(E)

CONTENTS
FOREWORD . 4

IEEE INTRODUCTION . 7

1 Overview . 8

1.1 Scope . 8

1.2 Purpose . 8

1.3 Limitations . 8

2 References . 9

3 Definitions and acronyms . 9
3.1 Definitions . 9
3.2 Acronyms . 12
4 Interconnection technical specifications and requirements . 12
4.1 General requirements . 13
4.1.1 Voltage regulation . 13
4.1.2 Integration with Area EPS grounding . 13
4.1.3 Synchronization . 13
4.1.4 Distributed resources on distribution secondary grid and spot
networks . 13
4.1.5 Inadvertent energization of the Area EPS . 14
4.1.6 Monitoring provisions . 14
4.1.7 Isolation device . 14
4.1.8 Interconnect integrity . 14
4.2 Response to Area EPS abnormal conditions . 14
4.2.1 Area EPS faults . 14
4.2.2 Area EPS reclosing coordination . 15
4.2.3 Voltage . 15
4.2.4 Frequency . 15
4.2.5 Loss of synchronism . 16
4.2.6 Reconnection to Area EPS . 16
4.3 Power quality . 16
4.3.1 Limitation of dc injection . 16
4.3.2 Limitation of flicker induced by the DR . 16
4.3.3 Harmonics . 16
4.4 Islanding . 17
4.4.1 Unintentional islanding . 17
4.4.2 Intentional islanding . 17
5 Interconnection test specifications and requirements . 17
5.1 Design test . 17
5.1.1 Response to abnormal voltage and frequency . 18
5.1.2 Synchronization . 18
5.1.3 Interconnect integrity test . 19
5.1.4 Unintentional Islanding. 19
5.1.5 Limitation of dc injection . 20
5.1.6 Harmonics . 20
5.2 Production tests . 20
5.3 Interconnection installation evaluation . 20
IEC/IEEE/PAS 63547:2011(E) – 3 –

5.3.1 Grounding integration with Area EPS . 20

5.3.2 Isolation device . 21

5.3.3 Monitoring provisions . 21

5.3.4 Area EPS faults . 21

5.3.5 Area EPS reclosing coordination . 21

5.4 Commissioning tests . 21

5.4.1 Unintentional islanding functionality test . 22

5.4.2 Cease to energize functionality test. 22

5.5 Periodic interconnection tests. 22

Annex A (informative) Bibliography . 23

Annex B (informative) IEEE List of Participants . 24

Figure 1 – Relationship of interconnection terms . 10
Figure 2 – Schematic of interconnection . 11

Table 1 – Interconnection system response to abnormal voltages . 15
[IEC IN SOME COUNTRIES CLAUSE: Table 2 – Interconnection system response
to abnormal frequencies] . 16
[IEC IN SOME COUNTRIES CLAUSE: Table 3 – Maximum harmonic current
a
distortion in percent of current (I) ] . 17
Table 4 – Sequence for conducting design test . 18
Table 5 – Synchronization parameter limits for synchronous interconnection to an EPS,
or an energized local EPS to an energized Area EPS . 19
[IEC IN SOME COUNTRIES CLAUSE: Table 6 – Maximum harmonic voltage
distortion in percent of rated voltage for synchronous machines] . 20

– 4 – IEC/IEEE/PAS 63547:2011(E)

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
INTERCONNECTING DISTRIBUTED RESOURCES

WITH ELECTRIC POWER SYSTEMS
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 possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
A PAS is a technical specification not fulfilling the requirements for a standard, but made
available to the public.
IEC/IEEE-PAS 63547 was submitted by the IEEE (The Institute of Electrical and Electronics
Engineers) and has been processed by IEC technical committee 8: Systems aspects for
electrical energy supply.
TM
It is based on IEEE Std 1547 -2003. It is published as a double-logo PAS.

The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document:
Draft PAS Report on voting
8/1296/PAS 8/1299/RVD
Following publication of this PAS the technical committee or subcommittee concerned may
transform it into an International Standard.
This PAS shall remain valid for an initial maximum period of 3 years starting from the
publication date. The validity may be extended for a single period up to a maximum of
3 years, at the end of which it shall be published as another type of normative document, or
shall be withdrawn.
...