|
IEC TS 63106-1
Edition 1.0 2020-11
TECHNICAL
SPECIFICATION
Simulators used for testing of photovoltaic power conversion equipment –
Recommendations –
Part 1: AC power simulators
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
.
IEC TS 63106-1
Edition 1.0 2020-11
TECHNICAL
SPECIFICATION
Simulators used for testing of photovoltaic power conversion equipment –
Recommendations –
Part 1: AC power simulators
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 27.160 ISBN 978-2-8322-9035-4
– 2 – IEC TS 63106-1:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
4 PCE types with respect to AC voltage levels and grid interconnection . 9
5 Test setup for utility interactive PCEs . 10
5.1 General . 10
5.2 Test setup examples for utility interaction test . 11
5.2.1 General . 11
5.2.2 Types of AC power simulator systems . 11
5.2.3 Load . 12
5.2.4 Line impedance . 13
6 General recommendations for AC power simulators . 13
6.1 General . 13
6.1.1 Overview . 13
6.1.2 AC main connections . 13
6.1.3 Output transformer . 13
6.1.4 Number of phases and voltage range . 13
6.1.5 Frequency ranges supplied to EUT . 14
6.1.6 Voltage stability and accuracy . 14
6.1.7 Frequency stability and accuracy . 14
6.1.8 AC output voltage harmonic distortion . 14
6.1.9 Signal interface for hardware in the loop . 15
6.1.10 Durability against impulse test voltage . 15
6.1.11 Other requirements for test properties . 15
6.2 AC power simulator performance and characteristics . 15
Bibliography . 38
Figure 1 – Examples of ports . 8
Figure 2 – Example of connection of DG systems to utility grid . 10
Figure 3 – Examples of fundamental setup of EUT test system . 11
Table 1 – Typical maximum harmonic voltage distortion (as per IEC 61000-4-7:2002) . 14
Table 2 – Grid qualification/Requalification – In-range voltage before
connection/reconnection . 16
Table 3 – Grid qualification/Requalification – In-range frequency before
connection/reconnection . 17
Table 4 – Power capability: Nameplate P, Q, S under normal and near-normal grid
conditions . 18
Table 5 – Power capability: Limitation of P/Q/S/PF by setpoint . 19
Table 6 – Power capability: Ramp rate or soft start time-developing magnitude by
set rate . 20
Table 7 – Grid protection tests – AC over-voltage (OV) and under-voltage (UV) trip
tests . 21
Table 8 – Grid protection tests: OF/UF trips . 22
Table 9 – Grid protection tests: Anti-islanding . 23
Table 10 – Grid protection tests: ROCOF trips . 24
Table 11 – Grid protection tests: Open phase . 25
Table 12 – Power quality tests: Current harmonics, inter-harmonics, THDi . 26
Table 13 – Power quality tests: Flicker (continuous) . 27
Table 14 – Power quality tests: Current inrush (at connection switch close) . 28
Table 15 – Power quality tests: Current imbalance . 29
Table 16 – Power quality tests: Transient OV on load dump . 30
Table 17 – Grid support tests: UV/OV ride-through with/without Iq injection . 31
Table 18 – Grid support tests: UF/OF ride-through . 32
Table 19 – Grid support tests: ROCOF ride-through . 33
Table 20 – Grid support tests: Phase-jump ride-through. 34
Table 21 – Grid support tests: P (f), PF (P, V), Q (V), P (V) . 35
Table 22 – External command response tests: Magnitude accuracy for P/Q/S/PF by
setpoint . 36
Table 23 – External command response tests: Response to external setpoint changes
(response time, settling time) . 37
– 4 – IEC TS 63106-1:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SIMULATORS USED FOR TESTING OF PHOTOVOLTAIC POWER
CONVERSION EQUIPMENT – RECOMMENDATIONS –
Part 1: AC power simulators
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) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) 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.
The main task of IEC technical committees is to prepare International Standards. In exceptional
circumstances, a technical committee may propose the publication of a Technical Specification
when
• the required support cannot be obtained for the publication of an International Standard,
despite repeated efforts, or
• the subject is still under technical development or where, for any other reason, there is the
future but no immediate possibility of an agreement on an International Standard.
Technical Specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC TS 63106-1, which is a Technical Specification, has been prepared by IEC technical
committee 82: Solar photovoltaic energy systems.
The text of this Tech
...