Voltage sourced converter (VSC) valves for high-voltage direct curent (HVDC) power transmission - Electrical testing

IEC 62501:2009 applies to self-commutated converter valves, for use in a three-phase bridge voltage sourced converter (VSC) for high voltage d.c. power transmission or as part of a back-to-back link. It is restricted to electrical type and production tests.

Ventile von Spannungszwischenkreis-Stromrichtern (VSC) für die Hochspannungsgleichstromübertragung (HGÜ) - Elektrische Prüfung

Valves à convertisseur de source de tension (VSC) pour le transport d'énergie en courant continu à haute tension (CCHT) - Essais électriques

La CEI 62501:2009 s'applique aux valves à convertisseur autocommuté, conçues pour être utilisées dans un convertisseur de source de tension (VSC, valve sourced converter en anglais) en pont triphasé pour le transport d'énergie en courant continu à haute tension ou en tant qu'élément d'une liaison dos-à-dos. Elle se limite aux essais de type électrique et de production.

Električno preskušanje elektronk za pretvornike napetostnih virov (VSC) za enosmerni visokonapetostni prenos električne energije (HVDC) (IEC 62501:2009)

Ta mednarodni standard se uporablja za elektronke za pretvornike z lastno komutacijo za uporabo pri trifaznih pretvornikih napetostnih virov (VSC) za enosmerni visokonapetostni prenos električne energije ali kot del povezave zaporedne vrste. Omejen je na električno vrsto in proizvodne preskuse. Preskusi, določeni v tem standardu, temeljijo na zračno izoliranih elektronkah. Za druge vrste elektronk se je treba dogovoriti glede zahtev preskusa in meril sprejemljivosti.

General Information

Status
Published
Publication Date
13-Aug-2009
Technical Committee
Drafting Committee
Parallel Committee
Current Stage
6060 - Document made available
Start Date
14-Aug-2009
Due Date
13-Sep-2009
Completion Date
14-Aug-2009

RELATIONS

Buy Standard

Standard
EN 62501:2009
English language
44 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 62501:2009
01-oktober-2009
(OHNWULþQRSUHVNXãDQMHHOHNWURQN]DSUHWYRUQLNHQDSHWRVWQLKYLURY 96& ]D
HQRVPHUQLYLVRNRQDSHWRVWQLSUHQRVHOHNWULþQHHQHUJLMH +9'&  ,(&

Electrical testing of voltage sourced converter (VSC) valves for high-voltage direct

voltage (HVDC) power transmission (IEC 62501:2009)
Spannungsgeführte Stromrichterventile (VSC-Ventile) für die
Hochspannungsgleichstromübertragung (HGÜ) - Elektrische Prüfung (IEC 62501:2009)

Essais électriques sur les valves à convertisseur de source de tension (VSC) pour le

transport d'énergie en courant continu à haute tension (CCHT) EEIC 62501:2009)
Ta slovenski standard je istoveten z: EN 62501:2009
ICS:
29.200 8VPHUQLNL3UHWYRUQLNL Rectifiers. Convertors.
6WDELOL]LUDQRHOHNWULþQR Stabilized power supply
QDSDMDQMH
29.240.01 2PUHåMD]DSUHQRVLQ Power transmission and
GLVWULEXFLMRHOHNWULþQHHQHUJLMH distribution networks in
QDVSORãQR general
SIST EN 62501:2009 en,fr

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 62501:2009
---------------------- Page: 2 ----------------------
SIST EN 62501:2009
EUROPEAN STANDARD
EN 62501
NORME EUROPÉENNE
August 2009
EUROPÄISCHE NORM
ICS 29.200; 29.240
English version
Voltage sourced converter (VSC) valves
for high-voltage direct current (HVDC) power transmission -
Electrical testing
(IEC 62501:2009)
Valves à convertisseur de source Spannungsgeführte Stromrichterventile
de tension (VSC) pour le transport (VSC-Ventile) für die
d'énergie en courant continu Hochspannungsgleichstromübertragung
à haute tension (CCHT) - (HGÜ) -
Essais électriques Elektrische Prüfung
(CEI 62501:2009) (IEC 62501:2009)

This European Standard was approved by CENELEC on 2009-07-01. CENELEC members are bound to comply

with the CEN/CENELEC Internal 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 member.

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.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the

Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: Avenue Marnix 17, B - 1000 Brussels

© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62501:2009 E
---------------------- Page: 3 ----------------------
SIST EN 62501:2009
EN 62501:2009 - 2 -
Foreword

The text of document 22F/185/FDIS, future edition 1 of IEC 62501, prepared by SC 22F, Power

electronics for electrical transmission and distribution systems, of IEC TC 22, Power electronic systems

and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as

EN 62501 on 2009-07-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2010-04-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2012-07-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice

The text of the International Standard IEC 62501:2009 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following note has to be added for the standard indicated:

IEC 60146-2 NOTE Harmonized as EN 60146-2:2000 (not modified).
__________
---------------------- Page: 4 ----------------------
SIST EN 62501:2009
- 3 - EN 62501:2009
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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 modified by common modifications, indicated by (mod), the relevant EN/HD

applies.
Publication Year Title EN/HD Year
IEC 60060 Series High-voltage test techniques EN 60060 Series
IEC 60060-1 1989 High-voltage test techniques - HD 588.1 S1 1991
Part 1: General definitions and test
requirements
IEC 60071-1 2006 Insulation co-ordination - EN 60071-1 2006
Part 1: Definitions, principles and rules

IEC 60700-1 1998 Thyristor valves for high voltage direct current EN 60700-1 1998

A1 2003 (HVDC) power transmission - A1 2003
A2 2008 Part 1: Electrical testing A2 2008
1) 2)
ISO/IEC 17025 - General requirements for the competence of EN ISO/IEC 17025 2005
testing and calibration laboratories
Undated reference.
Valid edition at date of issue.
---------------------- Page: 5 ----------------------
SIST EN 62501:2009
---------------------- Page: 6 ----------------------
SIST EN 62501:2009
IEC 62501
Edition 1.0 2009-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC)
power transmission – Electrical testing
Valves à convertisseur de source de tension (VSC) pour le transport d’énergie
en courant continu à haute tension (CCHT) – Essais électriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX
ICS 29.200; 29.240 ISBN 2-8318-1048-1
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 62501:2009
– 2 – 62501 © IEC:2009
CONTENTS

FOREWORD...........................................................................................................................0H0H0H5

1 Scope...............................................................................................................................1H1H1H7

2 Normative references .......................................................................................................2H2H2H7

3 Terms and definitions .......................................................................................................3H3H3H7

3.1 Insulation co-ordination terms .................................................................................4H4H4H7

3.2 Power semiconductor terms ....................................................................................5H5H5H8

3.3 Operating states......................................................................................................6H6H6H8

3.3.1 Operating state of an IGBT-diode pair .........................................................7H7H7H8

3.3.2 Operating state of converter ........................................................................8H8H8H9

3.4 VSC construction terms...........................................................................................9H9H9H9

3.5 Valve structure terms ............................................................................................10H10H10H10

4 General requirements .....................................................................................................11H11H11H10

4.1 Guidelines for the performance of type tests..........................................................12H12H12H10

4.1.1 Evidence in lieu .........................................................................................13H13H13H10

4.1.2 Test object ................................................................................................14H14H14H10

4.1.3 Sequence of test .......................................................................................15H15H15H11

4.1.4 Test procedure ..........................................................................................16H16H16H11

4.1.5 Ambient temperature for testing.................................................................17H17H17H11

4.1.6 Frequency for testing.................................................................................18H18H18H11

4.1.7 Test reports ...............................................................................................19H19H19H11

4.2 Atmospheric correction factor ................................................................................20H20H20H11

4.3 Treatment of redundancy.......................................................................................21H21H21H12

4.3.1 Operational tests .......................................................................................22H22H22H12

4.3.2 Dielectric tests...........................................................................................23H23H23H12

4.4 Criteria for successful type testing.........................................................................24H24H24H12

4.4.1 General .....................................................................................................25H25H25H12

4.4.2 Criteria applicable to valve levels ..............................................................26H26H26H13

4.4.3 Criteria applicable to the valve as a whole.................................................27H27H27H14

5 List of type tests .............................................................................................................28H28H28H14

6 Operational tests ............................................................................................................29H29H29H14

6.1 Purpose of tests ....................................................................................................30H30H30H14

6.2 Test object ............................................................................................................31H31H31H15

6.3 Test circuit ............................................................................................................32H32H32H15

6.4 Maximum continuous operating duty test ...............................................................33H33H33H15

6.5 Maximum temporary over-load operating duty test.................................................34H34H34H16

6.6 Minimum d.c. voltage test......................................................................................35H35H35H16

7 Dielectric tests on valve support structure ......................................................................36H36H36H17

7.1 Purpose of tests ....................................................................................................37H37H37H17

7.2 Test object ............................................................................................................38H38H38H17

7.3 Test requirements .................................................................................................39H39H39H17

7.3.1 Valve support d.c. voltage test...................................................................40H40H40H17

7.3.2 Valve support a.c. voltage test...................................................................41H41H41H18

7.3.3 Valve support switching impulse test .........................................................42H42H42H19

7.3.4 Valve support lightning impulse test ..........................................................43H43H43H19

8 Dielectric tests on multiple valve unit..............................................................................44H44H44H19

8.1 Purpose of tests ....................................................................................................45H45H45H19

---------------------- Page: 8 ----------------------
SIST EN 62501:2009
62501 © IEC:2009 – 3 –

8.2 Test object ............................................................................................................46H46H46H19

8.3 Test requirements .................................................................................................47H47H47H20

8.3.1 MVU d.c. voltage test to earth ...................................................................48H48H48H20

8.3.2 MVU a.c. voltage test ................................................................................49H49H49H20

8.3.3 MVU switching impulse test .......................................................................50H50H50H21

8.3.4 MVU lightning impulse test ........................................................................51H51H51H22

9 Dielectric tests between valve terminals .........................................................................52H52H52H22

9.1 Purpose of the test ................................................................................................53H53H53H22

9.2 Test object ............................................................................................................54H54H54H23

9.3 Test requirements .................................................................................................55H55H55H23

9.3.1 Valve a.c. – d.c. voltage test......................................................................56H56H56H23

9.3.2 Valve impulse tests (general) ....................................................................57H57H57H25

9.3.3 Valve switching impulse test......................................................................58H58H58H25

9.3.4 Valve lightning impulse test .......................................................................59H59H59H26

10 IGBT overcurrent turn-off test .........................................................................................60H60H60H26

10.1 Purpose of test......................................................................................................61H61H61H26

10.2 Test object ............................................................................................................62H62H62H27

10.3 Test requirements .................................................................................................63H63H63H27

11 Short-circuit current test .................................................................................................64H64H64H27

11.1 Purpose of tests ....................................................................................................65H65H65H27

11.2 Test object ............................................................................................................66H66H66H27

11.3 Test requirements .................................................................................................67H67H67H27

12 Tests for valve insensitivity to electromagnetic disturbance ............................................68H68H68H28

12.1 Purpose of tests ....................................................................................................69H69H69H28

12.2 Test object ............................................................................................................70H70H70H28

12.3 Test requirements .................................................................................................71H71H71H28

12.3.1 General .....................................................................................................72H72H72H28

12.3.2 Approach one ............................................................................................73H73H73H28

12.3.3 Approach two ............................................................................................74H74H74H29

12.3.4 Acceptance criteria....................................................................................75H75H75H29

13 Production tests .............................................................................................................76H76H76H29

13.1 Purpose of tests ....................................................................................................77H77H77H29

13.2 Test object ............................................................................................................78H78H78H29

13.3 Test requirements .................................................................................................79H79H79H30

13.4 Production test objectives .....................................................................................80H80H80H30

13.4.1 Visual inspection .......................................................................................81H81H81H30

13.4.2 Connection check ......................................................................................82H82H82H30

13.4.3 Voltage-grading circuit check.....................................................................83H83H83H30

13.4.4 Control, protection and monitoring circuit checks.......................................84H84H84H30

13.4.5 Voltage withstand check ............................................................................85H85H85H30

13.4.6 Partial discharge tests ...............................................................................86H86H86H30

13.4.7 Turn-on / turn-off check .............................................................................87H87H87H30

13.4.8 Pressure test .............................................................................................88H88H88H31

14 Presentation of type test results .....................................................................................89H89H89H31

Annex A (informative) Overview of VSC topology.................................................................90H90H90H32

Annex B (informative) Fault tolerance capability ..................................................................91H91H91H40

Bibliography..........................................................................................................................92H92H92H41

---------------------- Page: 9 ----------------------
SIST EN 62501:2009
– 4 – 62501 © IEC:2009

Figure A.1 – A single VSC phase unit and its idealized output voltage ..................................93H93H93H33

Figure A.2 – Output voltage of a VSC phase unit for a 2-level converter ...............................94H94H94H33

Figure A.3 – Output voltage of a VSC phase unit for a 15-level converter, without PWM .......95H95H95H34

Figure A.4 – Basic circuit topology of one phase unit of a 2-level converter ..........................96H96H96H35

Figure A.5 – Basic circuit topology of one phase unit of a 3-level diode-clamped

converter ..............................................................................................................................97H97H97H36

Figure A.6 – Basic circuit topology of one phase unit of a 5-level diode-clamped

converter ..............................................................................................................................98H98H98H36

Figure A.7 – Basic circuit topology of one phase unit of a 3-level flying capacitor

converter ..............................................................................................................................99H99H99H37

Figure A.8 – A single VSC phase unit with valves of the “controllable voltage source”

type ......................................................................................................................................100H100H100H38

Figure A.9 – One possible implementation of a multi-level “voltage source” VSC valve .........101H101H101H38

Table 1 – Minimum number of valve levels to be tested as a function of the number of

valve levels per valve............................................................................................................102H102H102H11

Table 2 – Valve level faults permitted during type tests.........................................................103H103H103H13

Table 3 – List of type tests....................................................................................................104H104H104H14

---------------------- Page: 10 ----------------------
SIST EN 62501:2009
62501 © IEC:2009 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
______________
VOLTAGE SOURCED CONVERTER (VSC)
VALVES FOR HIGH-VOLTAGE DIRECT CURRENT (HVDC)
POWER TRANSMISSION – ELECTRICAL TESTING
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with an IEC Publication.

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.

IEC 62501 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 text of this standard is based on the following documents:
FDIS Report on voting
22F/185/FDIS 22F/193/RVD

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/IEC Directives, Part 2.

---------------------- Page: 11 ----------------------
SIST EN 62501:2009
– 6 – 62501 © IEC:2009

The committee has decided that the contents of this publication will remain unchanged until

the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in

the data related to the specific publication. At this date, the publication will be

• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 12 ----------------------
SIST EN 62501:2009
62501 © IEC:2009 – 7 –
VOLTAGE SOURCED CONVERTER (VSC)
VALVES FOR HIGH-VOLTAGE DIRECT CURRENT (HVDC)
POWER TRANSMISSION – ELECTRICAL TESTING
1 Scope

This International Standard applies to self-commutated converter valves, for use in a three-

phase bridge voltage sourced converter (VSC) for high voltage d.c. power transmission or as

part of a back-to-back link. It is restricted to electrical type and production tests.

The tests specified in this standard are based on air insulated valves. For other types of

valves, the test requirements and acceptance criteria must be agreed.
2 Normative references

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.
IEC 60060 (all parts), High-voltage test techniques

IEC 60060-1:1989, High-voltage test techniques – Part 1: General definitions and test

requirements

IEC 60071-1:2006, Insulation co-ordination – Part 1: Definitions, principles and rules

IEC 60700-1:1998, Thyristor valves for high voltage direct current (HVDC) power transmission

– Part 1: Electrical testing 1F1F0F
Amendment 1(2003)
Amendment (2008)

ISO/IEC 17025, General requirements for the competence of testing and calibration

laboratories
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 Insulation 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 of applications or a specified

duration of the test voltage, under specified conditions
___________

There exists a consolidated edition 1.2 (2008) that comprises IEC 60700-1, Amendment 1 and Amendment 2.

---------------------- Page: 13 ----------------------
SIST EN 62501:2009
– 8 – 62501 © IEC:2009
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 insulation

air between the external surface of the valve or multiple valve unit and its surroundings.

3.2 Power semiconductor terms

There are several types of controllable semiconductor switch device which can be used in

VSC converters for HVDC. For convenience, the term IGBT is used throughout this standard

to refer to the main, controllable, semiconductor switch device. However, the standard is

equally applicable to other types of controllable semiconductor switch device.
3.2.1
insulated gate bipolar transistor
IGBT
a controllable switch with the capability to turn-on and turn-off a load current

An IGBT has three terminals: a gate terminal (G) and two load terminals emitter (E) and

collector (C).

By applying appropriate gate to emitter voltages, the load current can be controlled, i.e.

turned on and turned off.
3.2.2
free-wheeling diode
FWD
power semiconductor device with diode characteristic

A FWD has two terminals: an anode (A) and a cathode (K). The current through FWDs is in

the opposite direction to the IGBT current.

FWDs are characterized by the capability to cope with high rates of decrease of current

caused by the switching behaviour of the IGBT.
3.2.3
IGBT-diode pair
arrangement of IGBT and FWD connected in inverse parallel
3.3 Operating states
3.3.1 Operating state of an IGBT-diode pair
3.3.1.1
blocking state
the condition in which an IGBT-diode pair is turned off

In that state, the load current does not flow through the IGBT. However, a load current can

flow through the diode as the diode is not controllable.
3.3.1.2
de-blocked state

the condition when the load current flows either through the IGBT or diode of an IGBT-diode

pair depending on the load current direction
---------------------- Page: 14 ----------------------
SIST EN 62501:2009
62501 © IEC:2009 – 9 –
3.3.2 Operating state of converter
3.3.2.1
blocking state

a condition of the converter, in which a turn-off signal is applied to all IGBTs of the converter

Typically, the converter is in the blocking state condition after energization.
3.3.2.2
de-blocked state

a condition of the converter, in which turn-on signals are applied to IGBTs of the converter

3.3.2.3
valve protective blocking

means of protecting the valve or converter from excessive electrical stress by the emergency

turn-off of all IGBTs in one
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.