1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 61975:2010High-voltage direct current(HVDC) installations SystemtestsBS EN 61975:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN
2、61975:2010.The UK participation in its preparation was entrusted to TechnicalCommittee PEL/22, Power electronics.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Us
3、ers are responsible for its correctapplication. BSI 2010ISBN 978 0 580 58961 4ICS 29.130.10; 31.080.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 20
4、10.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD EN 61975 NORME EUROPENNE EUROPISCHE NORM September 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Managemen
5、t Centre: Avenue Marnix 17, B - 1000 Brussels 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61975:2010 E ICS 29.130.10; 31.080.01 English version High-voltage direct current (HVDC) installations - System tests (IEC 61975:20
6、10) Installations en courant continu haute tension (CCHT) - Essais systme (CEI 61975:2010) Anlagen zur Hochspannungsgleichstrombertragung (HG) - Systemprfungen (IEC 61975:2010) This European Standard was approved by CENELEC on 2010-09-01. CENELEC members are bound to comply with the CEN/CENELEC Inte
7、rnal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC m
8、ember. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENE
9、LEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania,
10、 Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 61975:2010 - 2 - Foreword The text of document 22F/221/FDIS, future edition 1 of IEC 61975, prepared by SC 22F, Power electronics for electrical transmission and distribution systems, of IEC TC 22, Power electronic systems an
11、d equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61975 on 2010-09-01. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any o
12、r all such patent rights. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2011-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (
13、dow) 2013-09-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61975:2010 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards in
14、dicated: IEC/TR 60919-1 NOTE Harmonized as CLC/TR 60919-1. IEC 61000-4-3 NOTE Harmonized as EN 61000-4-3. IEC 61803 NOTE Harmonized as EN 61803. _ BS EN 61975:2010- 3 - EN 61975:2010 Annex ZA (normative) Normative references to international publications with their corresponding European publication
15、s The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been
16、 modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60633 1998 Terminology for high-voltage direct current (HVDC) transmission EN 60633 1999 IEC/TR 60919-2 2008 Performance of high-voltage direct current (HVDC) systems with line-co
17、mmutated converters - Part 2: Faults and switching CLC/TR 60919-2 201X1)1)At draft stage. BS EN 61975:2010 4 61975 IEC:2010(E) CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references7 3 Terms and definitions .7 3.1 Test classifications terms 7 3.2 Operation state terms 8 4 General 9 4.1
18、Purpose.9 4.2 Structure of the HVDC system .10 4.3 Structure of the control and protection system11 4.4 Logical steps of system test .12 4.5 Structure of system test .13 4.6 Precondition for site test 13 5 Converter station test16 5.1 General .16 5.2 Converter unit test .17 5.3 Energizing of reactiv
19、e components.18 5.4 Changing the d.c. system configuration19 5.5 Electromagnetic compatibility.20 5.6 Trip test.21 5.7 Open line test 22 5.8 Back-to-back test.24 5.9 Short circuit test 25 6 Transmission tests26 6.1 Low power transmission tests 26 6.2 Operator control mode transfer 34 6.3 Changes of
20、d.c. configuration 40 6.4 Main circuit equipment switching43 6.5 Dynamic performance testing.47 6.6 AC and d.c. system staged faults .56 6.7 Loss of telecom, auxiliaries or redundant equipment 60 6.8 High power transmission tests .63 6.9 Acceptance tests .67 7 Trial operation 74 7.1 General .74 7.2
21、Purpose of test 74 7.3 Test precondition .74 7.4 Test procedure 74 7.5 Test acceptance criteria.75 8 System test plan and documentation .75 8.1 General .75 8.2 Plant documentation and operating manual 75 8.3 System study reports and technical specification75 8.4 Inspection and test plan .76 8.5 Syst
22、em test program76 BS EN 61975:201061975 IEC:2010(E) 5 8.6 Test procedure for each test 77 8.7 Documentation of system test results.77 8.8 Deviation report .78 Bibliography 79 Figure 1 Relation among five major aspects of system test .10 Figure 2 Structure of the HVDC system 11 Figure 3 Structure of
23、the HVDC control and protection 11 Figure 4 Structure of system test 15 Figure 5 Sequence for low power transmission tests .28 Figure 6 Step response test of current control at the rectifier 49 Figure 7 Step response test of extinction angle control at the inverter .50 Figure 8 Step response test of
24、 d.c. voltage control at the inverter .50 Figure 9 Step response test of current control at the inverter 51 Figure 10 Step response test of power control at the rectifier 51 BS EN 61975:2010 6 61975 IEC:2010(E) INTRODUCTION The standard is structured in eight clauses: a) Clause 1 Scope b) Clause 2 N
25、ormative references c) Clause 3 Definitions d) Clause 4 General e) This clause addresses the purpose of this standard, the HVDC system structure, the control and protection structure, the logical steps of commissioning, the structure of the system test and that of the system commissioning standard.
26、f) Clause 5 Converter station test g) This clause addresses the commissioning of converter units and verifies the steady state performance of units as well as switching tests. h) Clause 6 Power transmission tests i) This clause concerns the commissioning of the transmission system, and verifies stat
27、ion coordination, steady-state and dynamic performance, interference, as well as interaction between the d.c. and a.c. systems. j) Clause 7 Trial operation k) After completion of the system test, the period of trial operation is normally specified to verify the normal transmission. l) Clause 8 Syste
28、m test plan and documentation Clauses 5 to 7 comprise individual sections providing an introduction and covering objects, preconditions and procedures and general acceptance criteria as well as detailed descriptions of the individual tests. BS EN 61975:201061975 IEC:2010(E) 7 HIGH-VOLTAGE DIRECT CUR
29、RENT (HVDC) INSTALLATIONS SYSTEM TESTS 1 Scope This International Standard applies to system tests for high-voltage direct current (HVDC) installations which consist of a sending terminal and a receiving terminal, each connected to an a.c. system. The tests specified in this standard are based on bi
30、directional and bipolar high-voltage direct current (HVDC) installations which consist of a sending terminal and a receiving terminal, each connected to an a.c. system. The test requirements and acceptance criteria should be agreed for back-to-back installations, while multi-terminal systems and vol
31、tage sourced converters are not included in this standard. For monopolar HVDC installations, the standard applies except for bipolar tests. For the special functions or performances that are claimed by specific projects, some extra test items not included in this standard should be added according t
32、o the technical specification requirements. This standard only serves as a guideline to system tests for high-voltage direct current (HVDC) installations. The standard gives potential users guidance, regarding how to plan commissioning activities. The tests described in the guide may not be applicab
33、le to all projects, but represent a range of possible tests which should be considered. Therefore, it is preferable that the project organization establishes the individual test program based on this standard and in advance assigns responsibilities for various tasks/tests between involved organisati
34、ons (e.g. user, supplier, manufacturer, operator, purchaser etc.) for each specific project. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For updated references, the latest edit
35、ion of the referenced document (including any amendments) applies. IEC 60633:1998, Terminology for high-voltage direct current (HVDC) power transmission IEC/TR 60919-2:2008, Performance of high-voltage direct current (HVDC) systems with line commutated converters Part 2: Faults and switching 3 Terms
36、 and definitions For the purposes of this document, the terms and definitions given in IEC 60633 as well as the following terms and definitions apply. 3.1 Test classifications terms 3.1.1 station test converter system test including items which verify the function of individual equipment of the conv
37、erter staton in energized state BS EN 61975:2010 8 61975 IEC:2010(E) 3.1.2 system test test verifying functions and performances of HVDC system as a whole as well as the interaction with adjacent a.c. systems 3.1.3 transmission tests test verifying functions and performances of HVDC system when tran
38、smitting power between both terminals NOTE It is also referred to as an “end to end test”. 3.2 Operation state terms In the d.c. system, there are 5 defined states: earthed, stopped, standby, blocked, de-blocked. 3.2.1 earthed state in which the pole or converter is isolated and earthed on the a.c.
39、and d.c. sides and no energizing of the pole or converter equipment is possible NOTE The earthed state provides the necessary safety for carrying out maintenance work, and is the only one that permits the pole or converter maintenance. In this state maintenance work is possible on the converter tran
40、sformers, the isolated and earthed part of the a.c. high voltage bus equipment, d.c. and valve hall installed equipment of this pole or converter. 3.2.2 stopped/isolated state in which the pole or converter is isolated from the a.c. and d.c. side, but all the earthing switches are open NOTE In this
41、state the d.c. yard can be prepared for power transmission (earth electrode line, pole and d.c. line connect). 3.2.3 standby state which is to be used when the d.c. system is not being utilized but is ready for power transmission NOTE In this state the converter transformer is to be ready; tap-chang
42、er is automatically brought to the start position, which ensures that the transformer will be energized with minimum voltage to minimize the inrush current. The disconnector of the a.c. bay should be closed, but the circuit breakers in the feeding bay of the converter transformer should be open. In
43、this state the d.c. configuration can still be changed (earth electrode line, pole and d.c. line connect). 3.2.4 blocked state in which the pole is prepared to transmit power at a moments notice NOTE The converter transformer is connected to the energized a.c. bus by means of closing of the respecti
44、ve circuit breaker. The valve cooling system is ready for operation if the cooling water conductivity, flow and temperature are within the specified limits. A defined d.c. configuration shall have been established. Further changes are not possible in this state. The thyristor pre-check is carried ou
45、t after the converter transformer has been energized. The pre-check is considered as passed when in every valve the redundancy is not lost. To change the blocked state, the states stopped, standby and de-blocked are selectable. 3.2.5 de-blocked state representing the following two operating modes: p
46、ower transmission and open line test NOTE Power transmission is the normal operating mode. In the de-blocked status the pole transmits power in normal operating mode if both terminals are in the deblocked stage and there is a voltage difference between the terminals. A minimum number of a.c. filters
47、 should be available. BS EN 61975:201061975 IEC:2010(E) 9 3.2.6 off-site tests tests which are performed before on-site testing 4 General 4.1 Purpose System test completes the commissioning of an HVDC system. The supplier can verify the suitability of the station equipment installed and the function
48、al completeness of the system. Moreover, adjustments and optimizations can be made. It is shown for the user that the requirements and stipulations in the contract are met and that there is correlation with studies and previous off-site tests. For the user, the completion of system test marks the be
49、ginning of commercial operation of the HVDC system. When adapting the HVDC system to the connected a.c. systems, there may be various constraints which require coordination within the economic schedules of the a.c. system operators. System tests prove to the public that tolerable values of phenomena concerning the public interest are not exceeded. Five major aspects are subject to system tests: a) HVDC station equipment and d.c. line/cable/bus including earth electrode, if a
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