1、 IEC 62927 Edition 1.0 2017-07 INTERNATIONAL STANDARD Voltage sourced converter (VSC) valves for static synchronous compensator (STATCOM) Electrical testing IEC 62927:2017-07(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights reserved. Unless
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10、ec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 62927 Edition 1.0 2017-07 INTERNATIONAL STANDARD Voltage sourced converter (VSC) valves for static synchronous compensator (STATCOM) Electrical te
11、sting INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.200; 29.240.99 ISBN 978-2-8322-4521-7 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 IEC 62927:2017 IEC 2017 CONTENTS FO
12、REWORD . 5 1 Scope 7 2 Normative references 7 3 Terms and definitions 7 3.1 Insulation co-ordination terms . 7 3.2 Power semiconductor terms 8 3.3 Operating states of converter 8 3.4 STATCOM construction terms . 9 3.5 Valve structure terms 10 4 General requirements 11 4.1 Guidelines for the performa
13、nce of type tests . 11 4.1.1 General . 11 4.1.2 Dielectric tests . 11 4.1.3 Operational tests . 11 4.1.4 Electromagnetic interference tests . 11 4.1.5 Evidence in lieu . 11 4.1.6 Test object . 12 4.1.7 Test procedure 12 4.1.8 Ambient temperature for testing . 12 4.1.9 Frequency for testing . 12 4.1.
14、10 Conditions to be considered in determination of type test parameters 12 4.1.11 Test reports . 12 4.2 Atmospheric correction factor . 12 4.3 Treatment of redundancy 13 4.3.1 Operational tests . 13 4.3.2 Dielectric tests . 13 4.4 Permissible component failures during type testing . 14 5 List of tes
15、ts 14 6 Operational tests . 15 6.1 Purpose of tests 15 6.2 Test object 15 6.3 Test circuit 16 6.4 Maximum continuous operating duty test 16 6.5 Maximum temporary overload operating duty test . 17 6.6 Minimum start voltage test 17 7 Dielectric tests on valve support 18 7.1 Purpose of tests 18 7.2 Tes
16、t object 18 7.3 Test requirements . 18 7.3.1 Valve support DC voltage test 18 7.3.2 Valve support AC voltage test 19 7.3.3 Valve support lightning impulse test . 20 8 Dielectric tests on multiple valve unit (MVU) 20 8.1 General . 20 8.2 Purpose of tests 20 8.3 Test object 20 IEC 62927:2017 IEC 2017
17、3 8.4 Test requirements . 20 8.4.1 MVU AC voltage test . 20 8.4.2 MVU DC voltage test . 21 8.4.3 MVU lightning impulse test 21 9 Dielectric tests between valve terminals 21 9.1 Purpose of the test 21 9.2 Test object 22 9.3 Test methods 22 9.3.1 General . 22 9.3.2 Method 1 . 22 9.3.3 Method 2 . 23 9.
18、4 Test requirements . 23 9.4.1 Valve AC voltage or AC-DC voltage test 23 9.4.2 Valve switching impulse test 25 10 IGBT overcurrent turn-off test 26 10.1 Purpose of test . 26 10.2 Test object 26 10.3 Test requirements . 26 11 Tests for valve insensitivity to electromagnetic disturbance . 27 11.1 Purp
19、ose of tests 27 11.2 Test object 27 11.3 Test requirements . 27 11.3.1 General . 27 11.3.2 Approach 1 27 11.3.3 Approach 2 28 11.3.4 Acceptance criteria 28 12 Short-circuit current test (optional). 28 12.1 Purpose of tests 28 12.2 Test object 28 12.3 Test requirements . 29 13 Production tests. 29 13
20、.1 General . 29 13.2 Purpose of tests 29 13.3 Test object 29 13.4 Test requirements . 29 13.5 Production test objectives . 30 13.5.1 Visual inspection . 30 13.5.2 Connection check 30 13.5.3 Voltage-grading circuit check . 30 13.5.4 Control, protection and monitoring circuit checks . 30 13.5.5 Voltag
21、e withstand check 30 13.5.6 Turn-on/turn-off check . 30 13.5.7 Pressure test . 30 14 Presentation of type test results 30 Annex A (informative) Overview of STATCOM valves 32 A.1 General . 32 A.2 STATCOM applications and operating limits . 32 A.3 Overview of STATCOM valve types. 33 4 IEC 62927:2017 I
22、EC 2017 A.4 STATCOMs based on switch type valve 33 A.4.1 General . 33 A.4.2 Two-level converter . 34 A.4.3 Three-level converters . 34 A.4.4 Multi-level converters. 35 A.5 STATCOMs based on controllable voltage source type valve 36 A.6 Valve switching principles . 37 Annex B (informative) Valve comp
23、onent fault tolerance 39 Bibliography 40 Figure A.1 STATCOM U-I characteristics . 33 Figure A.2 Two-level converter 34 Figure A.3 Three-level NPC converter 35 Figure A.4 Three-level flying capacitor converter . 35 Figure A.5 Modular multilevel converter . 36 Figure A.6 Single-phase full-bridge conve
24、rter. 37 Figure A.7 Two-level converter output voltage . 37 Figure A.8 Output voltage shape of three-level converter and modular multi-level converter 38 Table 1 Minimum number of valve levels to be tested as a function of the number of valve levels per valve 12 Table 2 Valve level faults permitted
25、during type tests . 14 Table 3 List of type tests 15 IEC 62927:2017 IEC 2017 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ VOLTAGE SOURCED CONVERTER (VSC) VALVES FOR STATIC SYNCHRONOUS COMPENSATOR (STATCOM) ELECTRICAL TESTING FOREWORD 1) The International Electrotechnical Commission (IEC) is a world
26、wide 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 ac
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35、blications. 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
36、of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62927 has been prepared by subcommittee 22F: Power electronics for electrical transmission and distribution systems, of IEC technical committee 22: Power electronic systems a
37、nd equipment. The text of this International Standard is based on the following documents: CDV Report on voting 22F/412/CDV 22F/431A/RVC Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has
38、 been drafted in accordance with the ISO/IEC Directives, Part 2. 6 IEC 62927:2017 IEC 2017 The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific docume
39、nt. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are conside
40、red to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. IEC 62927:2017 IEC 2017 7 VOLTAGE SOURCED CONVERTER (VSC) VALVES FOR STATIC SYNCHRONOUS COMPENSATOR (STATCOM) ELECTRICAL TESTING 1 Scope This document applies to self-co
41、mmutated valves, for use in voltage sourced converter (VSC) for static synchronous compensator (STATCOM). It is restricted to electrical type and production tests. The tests specified in this document are based on air insulated valves. For other types of valves, the test requirements and acceptance
42、criteria are agreed between the purchaser and the supplier. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated referenc
43、es, the latest edition of the referenced document (including any amendments) applies. IEC 60060 (all parts), High-voltage test techniques IEC 60060-1, High-voltage test techniques Part 1: General definitions and test requirements IEC 60071-1:2006, Insulation co-ordination Part 1: Definitions, princi
44、ples and rules IEC 60700-1:2015, Thyristor valves for high voltage direct current (HVDC) power transmission Part 1: Electrical testing IEC 62501, Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission Electrical testing 3 Terms and definitions For the purpos
45、es of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 Insulat
46、ion co-ordination terms 3.1.1 test withstand voltage value of a test voltage of standard waveshape at which a new valve, with unimpaired integrity, does not show any disruptive discharge and meets all other acceptance criteria specified for the particular test, when subjected to a specified number o
47、f applications or a specified duration of the test voltage, under specified conditions 8 IEC 62927:2017 IEC 2017 3.1.2 internal insulation air external to the components and insulating materials of the valve, but contained within the profile of the valve or multiple valve unit 3.1.3 external insulat
48、ion air between the external surface of the valve or multiple valve unit and its surroundings 3.2 Power semiconductor terms 3.2.1 turn-off semiconductor device controllable semiconductor device which may be turned on and off by a control signal, for example an IGBT Note 1 to entry: There are several
49、 types of turn-off semiconductor devices, for example IGBT, IGCT and GTO, which can be used in voltage sourced converters for STATCOM. For convenience, the term IGBT is used throughout this document to refer to the main, controllable turn-off, semiconductor device. However, this document is equally applicable to other types of controllable semiconductor switch device. 3.2.2 gate turn-off thyristor GTO thyristor turn-off semiconductor device which can be turned on and off
