BS EN 62927:2017:2018 Edition
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Voltage sourced converter (VSC) valves for static synchronous compensator (STATCOM). Electrical Testing
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 46 |
This document applies to self-commutated 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 criteria are agreed between the purchaser and the supplier.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | CONTENTS |
| 9 | FOREWORD |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions 3.1 Insulation co-ordination terms |
| 12 | 3.2 Power semiconductor terms 3.3 Operating states of converter |
| 13 | 3.4 STATCOM construction terms |
| 14 | 3.5 Valve structure terms |
| 15 | 4 General requirements 4.1 Guidelines for the performance of type tests 4.1.1 General 4.1.2 Dielectric tests 4.1.3 Operational tests 4.1.4 Electromagnetic interference tests 4.1.5 Evidence in lieu |
| 16 | 4.1.6 Test object 4.1.7 Test procedure 4.1.8 Ambient temperature for testing 4.1.9 Frequency for testing 4.1.10 Conditions to be considered in determination of type test parameters 4.1.11 Test reports 4.2 Atmospheric correction factor Table 1 – Minimum number of valve levels to be tested as a functionof the number of valve levels per valve |
| 17 | 4.3 Treatment of redundancy 4.3.1 Operational tests 4.3.2 Dielectric tests |
| 18 | 4.4 Permissible component failures during type testing 5 List of tests Table 2 – Valve level faults permitted during type tests |
| 19 | 6 Operational tests 6.1 Purpose of tests 6.2 Test object Table 3 – List of type tests |
| 20 | 6.3 Test circuit 6.4 Maximum continuous operating duty test |
| 21 | 6.5 Maximum temporary overload operating duty test 6.6 Minimum start voltage test |
| 22 | 7 Dielectric tests on valve support 7.1 Purpose of tests 7.2 Test object 7.3 Test requirements 7.3.1 Valve support DC voltage test |
| 23 | 7.3.2 Valve support AC voltage test |
| 24 | 7.3.3 Valve support lightning impulse test 8 Dielectric tests on multiple valve unit (MVU) 8.1 General 8.2 Purpose of tests 8.3 Test object 8.4 Test requirements 8.4.1 MVU AC voltage test |
| 25 | 8.4.2 MVU DC voltage test 8.4.3 MVU lightning impulse test 9 Dielectric tests between valve terminals 9.1 Purpose of the test |
| 26 | 9.2 Test object 9.3 Test methods 9.3.1 General 9.3.2 Method 1 |
| 27 | 9.3.3 Method 2 9.4 Test requirements 9.4.1 Valve AC voltage or AC-DC voltage test |
| 29 | 9.4.2 Valve switching impulse test |
| 30 | 10 IGBT overcurrent turn-off test 10.1 Purpose of test 10.2 Test object 10.3 Test requirements |
| 31 | 11 Tests for valve insensitivity to electromagnetic disturbance 11.1 Purpose of tests 11.2 Test object 11.3 Test requirements 11.3.1 General 11.3.2 Approach 1 |
| 32 | 11.3.3 Approach 2 11.3.4 Acceptance criteria 12 Short-circuit current test (optional) 12.1 Purpose of tests 12.2 Test object |
| 33 | 12.3 Test requirements 13 Production tests 13.1 General 13.2 Purpose of tests 13.3 Test object 13.4 Test requirements |
| 34 | 13.5 Production test objectives 13.5.1 Visual inspection 13.5.2 Connection check 13.5.3 Voltage-grading circuit check 13.5.4 Control, protection and monitoring circuit checks 13.5.5 Voltage withstand check 13.5.6 Turn-on/turn-off check 13.5.7 Pressure test 14 Presentation of type test results |
| 36 | Annex A(informative)Overview of STATCOM valves A.1 General A.2 STATCOM applications and operating limits |
| 37 | A.3 Overview of STATCOM valve types A.4 STATCOMs based on switch type valve A.4.1 General Figure A.1 – STATCOM U-I characteristics |
| 38 | A.4.2 Two-level converter A.4.3 Three-level converters Figure A.2 – Two-level converter |
| 39 | A.4.4 Multi-level converters Figure A.3 – Three-level NPC converter Figure A.4 – Three-level flying capacitor converter |
| 40 | A.5 STATCOMs based on controllable voltage source type valve Figure A.5 – Modular multilevel converter |
| 41 | A.6 Valve switching principles Figure A.6 – Single-phase full-bridge converter Figure A.7 – Two-level converter output voltage |
| 42 | Figure A.8 – Output voltage shape of three-level converter and modular multi-level converter |
| 43 | Annex B (informative)Valve component fault tolerance |
| 44 | Bibliography |
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BS EN 62927:2017+A1:2023
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