1、 IEC 62823 Edition 1.0 2015-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Thyristor valves for thyristor controlled series capacitors (TCSC) Electrical testing Valves thyristors pour condensateurs srie commands par thyristors (CSCT) Essai lectrique IEC 62823:2015-08(en-fr) colour inside THIS PUBLIC
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19、ez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62823 Edition 1.0 2015-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Thyristor valves for thyristor controlled series capacitors (TCSC) Electrical testing Valves thyristors pour conden
20、sateurs srie commands par thyristors (CSCT) Essai lectrique INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.240.99 ISBN 978-2-8322-2860-9 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique I
21、nternationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 62823:2015 IEC 2015 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative references 7 3 Term
22、s and definitions 7 4 TCSC valve and valve operation in general . 10 4.1 TCSC installation and TCSC valve 10 4.2 TCSC valve current and voltage at capacitive boost operation 12 4.2.1 General . 12 4.2.2 Waveshapes of valve current and voltage in capacitive boost operation 12 4.2.3 Formulas for TCSC v
23、alve current and voltage stresses calculation 13 4.3 Typical operating pattern of TCSC installation 15 5 General requirements 15 5.1 Guidelines for the performance of type tests . 15 5.1.1 Evidence in lieu . 15 5.1.2 Sequence of tests 16 5.1.3 Ambient temperature for testing . 16 5.1.4 Frequency for
24、 testing . 16 5.1.5 Test reports . 16 5.2 Test conditions for dielectric tests . 16 5.2.1 General . 16 5.2.2 Treatment of redundancy in dielectric tests 16 5.2.3 Atmospheric correction factor 17 5.3 Test conditions for operational tests 17 5.3.1 General . 17 5.3.2 Treatment of redundancy in operatio
25、nal tests 17 5.4 Criteria for successful type testing 18 5.4.1 General . 18 5.4.2 Criteria applicable to valve levels 18 5.4.3 Criteria applicable to the valve as a whole . 19 6 Summary of tests . 19 7 Dielectric tests between valve terminals and valve enclosure 20 7.1 Purpose of tests 20 7.2 Test o
26、bject 21 7.3 Test requirements . 21 7.3.1 AC test 21 7.3.2 Lightning impulse test 22 8 Dielectric tests between valve terminals 22 8.1 Purpose of tests 22 8.2 Test object 22 8.3 Test requirements . 23 8.3.1 AC test 23 8.3.2 Switching impulse test . 24 9 Periodic firing and extinction tests . 24 9.1
27、Purpose of tests 24 9.2 Test object 24 IEC 62823:2015 IEC 2015 3 9.3 Test requirements . 25 9.3.1 General . 25 9.3.2 Maximum continuous capacitive boost test 25 9.3.3 Maximum temporary capacitive boost test . 26 9.3.4 Minimum capacitive boost test . 26 9.3.5 Operation at bypass. 27 10 Fault current
28、tests . 29 10.1 Purpose of tests 29 10.2 Test object 29 10.3 Test requirements . 29 10.3.1 Fault current without subsequent blocking . 29 10.3.2 Fault current with subsequent blocking 29 11 Test for valve insensitivity to electromagnetic disturbance . 30 11.1 Purpose of tests 30 11.2 Test object 30
29、11.3 Test requirements . 30 12 Testing of special features . 30 12.1 Purpose of tests 30 12.2 Test object 31 12.3 Test requirements . 31 13 Routine tests . 31 13.1 General . 31 13.2 Visual inspection . 31 13.3 Connection check . 31 13.4 Voltage grading circuit check 31 13.5 Voltage withstand check .
30、 31 13.6 Partial discharge tests 31 13.7 Check of auxiliaries . 32 13.8 Firing check 32 13.9 Cooling system pressure test 32 14 Presentation of type test results 32 Annex A (informative) TCSC valve operating and rating considerations . 33 A.1 Overview. 33 A.2 TCSC characteristics 33 A.3 Operating ra
31、nge 34 A.4 Reactive power rating . 35 A.5 Power oscillation damping (POD) 35 A.6 SSR mitigation 35 A.7 Harmonics 36 A.8 Control interactions between TCSCs in parallel lines 36 A.9 Operating range, overvoltages and duty cycles . 36 A.9.1 Operating range . 36 A.9.2 Transient overvoltages 36 A.9.3 Duty
32、 cycles 37 Annex B (informative) Valve component fault tolerance 38 Bibliography 39 4 IEC 62823:2015 IEC 2015 Figure 1 Typical connection and nomenclature of a TCSC installation 11 Figure 2 TCSC subsegment . 11 Figure 3 TCSC steady state waveforms for control angle and conduction interval 12 Figure
33、4 Thyristor valve voltage in a TCSC 13 Figure 5 Example of operating range diagram for TCSC 15 Figure A.1 TCSC power frequency steady state apparent reactance characteristics according to Formula (A.1) with = 2,5 . 34 Table 1 Valve level faults permitted during type tests . 19 Table 2 List of tests
34、. 20 Table A.1 Peak and RMS voltage relationships 33 IEC 62823:2015 IEC 2015 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ THYRISTOR VALVES FOR THYRISTOR CONTROLLED SERIES CAPACITORS (TCSC) ELECTRICAL TESTING FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization
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45、 IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62823 has been prepared by subcommittee 22F: Power electronics for electrical transmission and distribution systems, of IEC technical committee 22: Power electronic systems and equipment. The
46、 text of this standard is based on the following documents: CDV Report on voting 22F/342/CDV 22F/354A/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/I
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49、ent using a colour printer. IEC 62823:2015 IEC 2015 7 THYRISTOR VALVES FOR THYRISTOR CONTROLLED SERIES CAPACITORS (TCSC) ELECTRICAL TESTING 1 Scope This International Standard defines routine and type tests on thyristor valves used in thyristor controlled series capacitor (TCSC) installations for AC power transmission. The tests specified in this International Standard are based on air insulated valve
