IEC 61 851 21 1 Edition 1 0 201 7 06 INTERNATIONAL STANDARD Electric vehicle conductive charging system – Part 21 1 Electric vehicle on board charger EMC requirements for conductive connection to an A[.]
I E C 61 51 -2 -1 ® Edition 201 7-06 I N TE RN ATI ON AL S TAN D ARD colour i n sid e E l ectri c ve h i cl e d u cti ve ch arg i n g s ys te m – P art -1 : E l ectri c veh i cl e on -board ch arg er E M C req u i re m e n ts for d u cti ve IEC 61 851 -21 -1 :201 7-06(en) n e cti on to an AC /D C s u ppl y T H I S P U B L I C AT I O N I S C O P YRI G H T P RO T E C T E D C o p yri g h t © I E C , G e n e v a , S wi tz e rl a n d All rights reserved Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester If you have any questions about I EC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local I EC member National Committee for further information IEC Central Office 3, rue de Varembé CH-1 21 Geneva 20 Switzerland Tel.: +41 22 91 02 1 Fax: +41 22 91 03 00 info@iec.ch www.iec.ch Ab ou t th e I E C The I nternational Electrotechnical Commission (I EC) is the leading global organization that prepares and publishes I nternational Standards for all electrical, electronic and related technologies Ab o u t I E C p u b l i ca ti o n s The technical content of IEC publications is kept under constant review by the IEC Please make sure that you have the latest edition, a corrigenda or an amendment might have been published I E C Catal og u e - webstore i ec ch /catal og u e The stand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents Available for PC, Mac OS, Android Tablets and iPad I E C pu bl i cati on s s earch - www i ec ch /search pu b The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,…) It also gives information on projects, replaced and withdrawn publications E l ectroped i a - www el ectroped i a org The world's leading online dictionary of electronic and electrical terms containing 20 000 terms and definitions in English and French, with equivalent terms in additional languages Also known as the International Electrotechnical Vocabulary (IEV) online I E C G l os sary - s td i ec ch /g l oss ary 65 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002 Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR I E C J u st Pu bl i s h ed - webstore i ec ch /j u stpu bl i sh ed Stay up to date on all new IEC publications Just Published details all new publications released Available online and also once a month by email I E C C u stom er S ervi ce C en tre - webstore i ec ch /csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csc@iec.ch I E C 61 51 -2 -1 ® Edition 201 7-06 I N TE RN ATI ON AL S TAN D ARD colour i n sid e E l ectri c ve h i cl e d u cti ve ch arg i n g s ys te m – P art -1 : E l ectri c veh i cl e on -board ch arg er E M C req u i re m e n ts for d u cti ve n e cti on to an AC /D C s u ppl y INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 43.1 20 ISBN 978-2-8322-4432-6 Warn i n g ! M ake s u re th a t you ob tai n ed th i s p u b l i cati on from an au th ori zed d i stri b u tor ® Registered trademark of the International Electrotechnical Commission –2– I EC 61 851 -21 -1 :201 © I EC 201 CONTENTS FOREWORD Scope Norm ative references Terms and definitions General test conditions Test methods and requirements General Overview Exceptions I mmunity General 2 Function perform ance criteria 1 Test severity level 1 I mm unity of vehicles to electrical fast transient/burst disturbances conducted along AC and DC power lines 5 I mm unity of vehicles to surges conducted along AC and DC power lines I mm unity to electrom agnetic radiated RF-fields 5 I mm unity to pulses on suppl y lines 20 I mm unity test and severity level overview 20 Emissions 23 Test conditions 23 Emissions of harmonics on AC power lines 23 3 Emission of voltage changes, voltage fluctuations and flicker on AC power lines 26 High-frequency conducted disturbances on AC or DC power lines 27 5 High-frequency conducted disturbances on network and telecom munication access 30 High-frequency radiated disturbances 32 Radiated disturbances on suppl y lines 37 Annex A (normative) Artificial networks, asymm etric artificial networks and integration of charging stations into the test setup 38 A Overview 38 A Charging station and power mains connection 38 A Artificial networks (AN) 39 A 3.1 General 39 A 3.2 Low voltage (LV) powered com ponent 39 A 3.3 High voltage (H V) powered component 40 A 3.4 Components involved in charging mode connected to DC power suppl y 42 A Artificial mains networks (AMN) 43 A Asymm etric artificial networks (AAN) 43 A 5.1 General 43 A 5.2 Symm etric comm unication lines (e g CAN) 43 A 5.3 PLC on power lines 44 A 5.4 PLC (technolog y) on control pilot 45 Bibliograph y 47 Figure – Electrical fast transient/burst test vehicle setup I EC 61 851 -21 -1 :201 © I EC 201 –3– Figure – Vehicle in configuration "REESS charging m ode coupled to the power grid" – coupling between lines for AC (single phase) and DC power lines Figure – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between each line and earth for AC (single phase) and DC power lines Figure – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between lines for AC (three phases) power lines Figure – Vehicle in configuration "REESS charging mode coupled to the power grid" – coupling between each line and earth for AC (three phases) power lines Figure – Exam ple of test setup for vehicle with inlet located on the vehicle side (AC/DC power charging without communication) Figure – Exam ple of test setup for vehicle with inlet located at the front/rear of the vehicle (AC/DC power charging without communication) Figure – Exam ple of test setup for vehicle with inlet located on vehicle side (AC or DC power charging with comm unication) Figure – Exam ple of test setup for vehicle with inlet located at the front/rear of the vehicle (AC or DC power charging with comm unication) Figure – Vehicle in configuration "REESS charging m ode coupled to the power grid" – Single-phase charger test setup 25 Figure 1 – Vehicle in configuration "REESS charging m ode coupled to the power grid" – Three-phase charger test setup 25 Figure – Vehicle in configuration "REESS charging mode coupled to the power grid" 26 Figure – Vehicle in configuration "REESS charging m ode coupled to the power grid" 29 Figure – Vehicle in configuration "REESS charging mode coupled to the power grid" 31 Figure – Example of vehicle in configuration "REESS charging m ode coupled to the power grid" 34 Figure – Test configuration for ESAs involved in REESS charging mode coupled to the power grid (example for horn antenna) 36 Figure A – Example of µ H AN schematic 39 Figure A – Characteristics of the AN impedance 40 Figure A – Example of µ H H V AN schematic 41 Figure A – Characteristics of the H V AN impedance 41 Figure A – Example of µ H H V AN com bination in a single shielded box 42 Figure A – I m pedance matching network attached between H V ANs and EUT 42 Figure A – Example of an impedance stabilization network for symm etric comm unication lines 44 Figure A – Example of a circuit for em ission tests of PLC on AC or DC powerlines 45 Figure A – Example of a circuit for im m unity tests of PLC on AC or DC powerlines 45 Figure A – Exam ple of a circuit for emission tests of PLC on control pilot line 46 Figure A 1 – Exam ple of a circuit for imm unity tests of PLC on control pilot line 46 Table – I mm unity tests 21 Table – Maximum allowed harmonics (input current ≤ A per phase) 24 Table – Acceptable harmonics for R sce = 33 (1 A < Ii ≤ 75 A) 24 Table – Maximum allowed radiofrequency conducted disturbances on AC power lines 27 Table – Maximum allowed radiofrequency conducted disturbances on DC power lines 28 Table – Maximum allowed radiofrequency conducted disturbances on network and telecomm unication access 30 –4– I EC 61 851 -21 -1 :201 © I EC 201 Table – Maximum allowed vehicle high-frequency radiated disturbances 32 Table – Maximum allowed ESA high-frequency radiated disturbances 35 Table – Maximum allowed ESA radiated disturbances on suppl y lines 37 I EC 61 851 -21 -1 :201 © I EC 201 –5– INTERNATI ONAL ELECTROTECHNI CAL COMMISSI ON E L E C T RI C VE H I C L E C O N D U C T I VE C H ARG I N G S YS T E M – P a rt -1 : E l e c tri c v e h i c l e o n - b o a rd c h a rg e r E M C re q u i re m e n ts fo r c o n d u c ti ve c o n n e c ti o n t o a n AC /D C s u p p l y FOREWORD ) The I nternati on al Electrotechni cal Comm ission (I EC) is a worl d wid e organization for stan dardization com prisin g all n ation al el ectrotechnical comm ittees (I EC National Comm ittees) The object of I EC is to prom ote internati onal co-operation on all questions concerni ng stand ardi zati on in the el ectrical an d electronic fields To this end and in additi on to other acti vities, I EC publish es I nternational Stan dards, Techn ical Specifications, Technical Reports, Publicly Avail abl e Specifications (PAS) an d Gui des (hereafter referred to as "I EC Publication(s)") Thei r preparation is entrusted to technical comm ittees; any I EC Nati on al Comm ittee interested in the subj ect dealt with m ay partici pate in this preparatory work I nternational, governm ental an d n ongovernm ental organ izations l iaising with th e I EC also participate i n this preparation I EC collaborates closel y with the I ntern ational Organi zation for Stand ardization (I SO) in accordance with ditions determ ined by agreem ent between th e two organi zati ons 2) The form al decisions or ag reem ents of I EC on tech nical m atters express, as n early as possible, an i nternati onal consensus of opi nion on the rel evant subjects since each technical com m ittee has representati on from all interested I EC N ational Com m ittees 3) I EC Publications have the form of recomm endations for intern ational use an d are accepted by I EC National Com m ittees in that sense While all reasonable efforts are m ade to ensure that the tech nical content of I EC Publications is accu rate, I EC cann ot be h eld responsi ble for th e way in which th ey are used or for an y m isinterpretation by an y en d u ser 4) I n order to prom ote intern ational u niform ity, I EC National Com m ittees und ertake to apply I EC Publications transparentl y to the m axim um extent possible i n their national an d regi on al publicati ons Any d ivergence between an y I EC Publication and the correspondi ng national or regi on al publicati on sh all be clearl y in dicated in the latter 5) I EC itself d oes n ot provi de an y attestation of conform ity I n dependent certificati on bodies provi de conform ity assessm ent services and, in som e areas, access to I EC m arks of conform ity I EC is not responsi ble for an y services carri ed out by ind ependent certification bodi es 6) All users shou ld ensure that th ey h ave the l atest editi on of thi s publicati on 7) No liability shall attach to I EC or its directors, em ployees, servants or ag ents inclu din g in divi du al experts an d m em bers of its tech nical com m ittees and I EC Nati onal Com m ittees for any person al i nju ry, property d am age or other dam age of any n ature whatsoever, whether di rect or indirect, or for costs (includ i ng leg al fees) and expenses arisi ng out of the publ ication, use of, or relian ce upon, this I EC Publicati on or any other I EC Publications 8) Attention is drawn to the N orm ative references cited in th is publ ication Use of the referenced publ ications is indispensable for the correct applicati on of this publication 9) Attention is drawn to the possibility that som e of the elem ents of this I EC Publication m ay be the su bject of patent rig hts I EC shall not be held responsibl e for identifyi ng any or all such patent ri ghts I nternational Standard I EC 61 851 -21 -1 has been prepared by subcomm ittee 69: Electric road vehicles and electric industrial trucks This first edition, together with I EC 61 851 -21 -2, cancels and replaces I EC 61 851 -21 : 2001 I t constitutes a technical revision This edition includes the following significant technical changes with respect to I EC 61 851 -21 :2001 : a) this docum ent addresses now onl y EM C tests instead of other electrical tests; b) test setups are defined more precisel y; c) Annex A "Artificial networks, asym metric artificial networks and integration of charging stations into the test setup" was added –6– I EC 61 851 -21 -1 :201 © I EC 201 The text of this I nternational Standard is based on the following documents: FDI S Report on votin g 69/507/FDI S 69/51 6/RVD Full information on the voting for the approval of this I nternational Standard can be found in the report on voting indicated in the above table This docum ent has been drafted in accordance with the I SO/I EC Directives, Part A list of all parts of the I EC 61 851 series, under the general title: Electric vehicle conductive charging system, can be found on the I EC website The comm ittee has decided that the contents of this docum ent will rem ain unchanged until the stability date indicated on the I EC website under "http: //webstore iec.ch" in the data related to the specific docum ent At this date, the docum ent will be • • • • reconfirm ed, withdrawn, replaced by a revised edition, or amended A bilingual version of this publication may be issued at a later date I M P O RT AN T th at it – Th e co n ta i n s u n d e rs t a n d i n g c o l o u r p ri n t e r of ' co l ou r c o l o u rs i ts i n si de' wh i ch c o n te n ts l og o a re U s e rs on th e cover c o n s i d e re d sh ou l d p ag e to t h e re fo re of th i s be p ri n t p u b l i cati on u s e fu l th i s fo r i n d i c ate s th e d ocu m e n t c o rre c t u si n g a I EC 61 851 -21 -1 :201 © I EC 201 –7– E L E C T RI C VE H I C L E C O N D U C T I VE C H ARG I N G S YS T E M – P a rt -1 : E l e c tri c v e h i c l e o n -b o a rd c h a rg e r E M C re q u i re m e n ts fo r c o n d u c ti ve c o n n e c ti o n t o a n AC /D C s u p p l y S cop e This part of I EC 61 851 , together with I EC 61 851 -1 : 201 0, gives requirements for conductive connection of an electric vehicle (EV) to an AC or DC suppl y I t applies onl y to on-board charging units either tested on the com plete vehicle or tested on the chargi ng system com ponent level (ESA – electronic sub assem bl y) This docum ent covers the electrom agnetic compatibility (EMC) requirements for electricall y propelled vehicles in an y charging mode while connected to the mains suppl y This docum ent is not applicable to trolley buses, rail vehicles, industrial trucks and vehicles designed primaril y to be used off-road, such as forestry and construction machines NOTE Specific safety req u irem ents that apply to equ ipm ent on th e vehicl e d uri ng chargin g are treated in separate d ocum ents as indicated in th e correspon ding cl auses of this docum ent NOTE Electric vehicl e (EV) inclu des pure electric vehicles as well as plu g-i n h ybrid electric vehicl es with additi on al com bustion engi ne N o rm a t i ve re fe re n c e s The following docum ents are referred to in the text in such a way that som e or all of their content constitutes requirements of this docum ent For dated references, onl y the edition cited applies For undated references, the latest edition of the referenced document (including an y am endm ents) applies I EC 60038: 2009 , IEC standard voltages I EC 61 000-3-2: 201 4, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic current emissions (equipment input current ≤ 16 A per phase) I EC 61 000-3-3: 201 3, Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection I EC 61 000-3-1 :2000, Electromagnetic compatibility (EMC) – Part 3-11 – Limits – Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems – Equipment with rated current ≤ 75 A and subject to conditional connection I EC 61 000-3-1 2:201 , Electromagnetic compatibility (EMC) – Part 3-12 – Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current > 16 A and ≤ 75 A per phase I EC 61 000-4-4: 201 , Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement techniques – Electrical fast transient/burst immunity test I EC 61 000-4-5: 201 4, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement techniques – Surge immunity test –8– I EC 61 851 -21 -1 :201 © I EC 201 I EC 61 000-6-3: 2006, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission standard for residential, commercial and light-industrial environments I EC 61 000-6-3: 2006/AM D1 :201 I EC 61 851 -1 : 201 0, Electric vehicle conductive charging system – Part 1: General requirements CI SPR 2: 2007, Vehicles, boats and internal combustion engines – Radio disturbance characteristics – Limits and methods of measurement for the protection of off-board receivers CI SPR 2:2007/AMD1 : 2009 CI SPR 6-1 -2: 201 4, Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-2: Radio disturbance and immunity measuring apparatus – Coupling devices for conducted disturbance measurements CI SPR 6-2-1 : 201 4, Specification for radio disturbance and immunity measuring apparatus and methods – Part 2-1: Methods of measurement of disturbances and immunity – Conducted disturbance measurements CI SPR 22: 2008, Information technology equipment – Radio disturbance characteristics – Limits and methods of measurement CI SPR 25: 201 6, Vehicles, boats and internal combustion engines – Radio disturbance characteristics – Limits and methods of measurement for the protection of on-board receivers I SO/TR 871 3:201 2, Electrically propelled road vehicles – Vocabulary I SO 7637-2: 201 , Road vehicles – Electrical disturbances from conduction and coupling -Part 2: Electrical transient conduction along supply lines only I SO 1 451 -1 :201 5, Road vehicles – Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 1: General principles and terminology I SO 1 451 -2:201 5, Road vehicles – Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 2: Off-vehicle radiation sources I SO 1 452-1 :201 5, Road vehicles – Component test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 1: General principles and terminology I SO 1 452-2:2004, Road vehicles – Component test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 2: Absorber-lined shielded enclosure I SO 1 452-4:201 , Road vehicles – Component test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 4: Harness excitation methods Terms and definitions For the purposes of this docum ent, the term s and definitions given in I EC 61 851 -1 : 201 and I SO/TR 871 3: 201 2, as well as the following appl y I SO and I EC m aintain term inological databases for use in standardization at the following addresses: • • I EC Electropedia: available at http://www electropedia org/ I SO Online browsing platform: available at http://www iso org/obp – 36 – I EC 61 851 -21 -1 :201 © I EC 201 200 ± ≥ 500 ≥ 000 ≥ 000 ≥ 500 000 ± 1 00 ± +1 00 +1 00 Top view (Vertical polarization) Key 10 11 12 13 14 15 16 17 18 19 25 26 27 28 29 IEC ESA LV test harn ess LV load sim ulator (placem ent and g round connecti on accordin g to CI SPR 25: 201 6, 5) power su ppl y (l ocation opti on al ) LV artificial network groun d plane (bond ed to th e shiel ded enclosu re) low relati ve perm ittivity support horn anten na high -q uality coaxi al cabl e, for exam ple dou ble shi eld ed bulkhead connector m easurem ent instrum ent RF absorber m ateri al stim ulation and m onitoring system HV harness HV load sim ul ator HV artificial network HV power su ppl y HV feed -th rou gh AC/DC charg er harness AC/DC l oad sim ulator 50 m H AMN (AC) or HV artifici al network (DC) AC/DC power su ppl y c /DC feed-th rou gh Figu re – Test configuration for ESAs involved in REESS charging mode coupled to the power grid (example for horn antenna) I EC 61 851 -21 -1 :201 © I EC 201 5.3.7 – 37 – Radiated distu rbances on supply lines The emission of the ESA representative of its type shall be tested by the method(s) according to I SO 7637-2: 201 on suppl y lines as well as to other connections of ESAs which may be operationall y connected to suppl y lines The m aximum allowed emission levels are given in the Table below Table – M aximum allowed ESA radiated disturbances on supply lines Polarity of pulse amplitude Vehicles with V S ystem s Vehicles with 24 V S ystem s Positive +75 V +1 50 V Neg ative –1 00 V –450 V – 38 – I EC 61 851 -21 -1 :201 © I EC 201 Annex A (normative) Artificial networks, asymmetric artificial networks and integration of charging stations into the test setup A.1 Overview Annex A describes artificial (mains) networks (AMN/AN ) for term ination of AC and DC power lines I t is necessary to use networks which provide specific load impedance and isolate the component from the power suppl y: • • artificial networks (AN ) are used for DC power supplies; artificial mains networks (AMN) are used onl y for AC power mains This annex also provides asym metric artificial networks (AAN) for the termination and coupling of charging comm unication for symm etric comm unication lines and asymmetric communication lines Furtherm ore it provides guidance on how to deal with power connections in the test setup A.2 Charging station and power mains connection The charging station m ay be placed either on the test site or outside the test location I n both cases the power mains sockets and communication sockets shall fulfil the following conditions • • • The sockets shall be placed directl y on the ground plane The length of the harness between the sockets and the corresponding artificial networks/asymm etric artificial networks shall be kept as short as possible The harness between the sockets and the artificial networks/asym m etric artificial networks shall be placed directl y on the ground plane I f the charging station is located on the test site the cabling shall • • hang verticall y at the side of the charging station to ground, and an y extraneous length of the cable shall be placed directly on the ground plane (z-folded, if necessary) I f the charging station is located on the test site it shall not be placed in direct line-of-sight between the measurem ent antenna and the vehicle I n case of a charging station located outside the test location the power mains sockets and comm unication line sockets should be filtered I f the communication between the vehicle and the charging station can be simulated, this comm unication simulation and a direct suppl y from power mains may replace the charging station I EC 61 851 -21 -1 :201 © I EC 201 A.3 A.3.1 – 39 – Artificial networks (AN) General Currentl y different types of power supplies and power suppl y cabling are used for a com ponent powered by low voltage (LV) and/or high voltage (H V) A.3.2 Low voltage (LV) powered component For a component powered by LV, a µ H /50 Ω -AN as defined in CI SPR 25:201 6, Annex E, and shown in Figure A shall be used The AN(s) shall be m ounted directl y on the ground plane The case of the AN(s) shall be bonded to the ground plane The DC resistance between the ground of the AN m easurement port and the ground plane shall not exceed 2, m Ω Measurem ent ports of AN(s) shall be term inated with a 50 Ω load The AN magnitude im pedance ZPB (tolerance ± 20 %) in the m easurem ent frequency range of 0, MH z to 00 MH z is shown in Figure A I t is measured between the term inals P and B (of Figure A ) with a 50 Ω load on the m easurement port with term inals A and B (of Figure A.1 ) short circuited µH A P 0, µF 1 µF 000 Ω 50 Ω B B Key port for the EUT power su ppl y port m easurem ent port Figure A.1 – Example of µ H AN schematic IEC I m ped ance ( Ω ) – 40 – I EC 61 851 -21 -1 : 201 © I EC 201 50 40 30 20 10 0, 5 10 00 Freq uen cy (M H z) IEC Fig u re A – Ch aracteri sti cs of th e AN i mped an ce A 3 H i gh vol tag e (H V) powered compon en t For a com pon ent powered by H V, a μ H /50 Ω H V-AN as d efi ned i n Fig ure A sh al l be used The AN (s) sh all be m ou nted d irectl y on th e groun d plan e Th e case of th e AN (s) sh al l be bon ded to th e groun d plan e Th e DC resistance between th e grou nd of th e AN m easurem en t port and th e grou n d plan e sh al l n ot exceed 2, m Ω Measurem ent ports of AN (s) sh al l be term in ated with a 50 Ω load The AN m ag n itu de im pedance ZPB (tol erance ± 20 %) i n the m easurem en t freq u ency range of 0, M H z to 00 M H z is shown i n Figure A I t is m easured between th e term inals P an d B (of Figu re A 3) with a 50 Ω load on the m easurem en t port wi th term in als A an d B (of Fi g ure A 3) short circu ited I EC 61 851 -21 -1 :201 © I EC 201 – 41 – L1 A P C1 R2 C2 R1 B B IEC Key port for the EUT C1 : 0, µF power suppl y port C2: 0, µF m easurem ent port R1 : kΩ L1 : µH R2 : M Ω (dischargin g C to < 50 V DC within 60 s) I mpedance ( Ω ) Figure A.3 – Example of µ H HV AN schematic 50 40 30 20 10 –1 00 01 02 Freq uency (M Hz) IEC Figu re A.4 – Characteristics of the H V AN impedance I f unshielded H V ANs are used in a single shielded box, then there shall be an inner shield between the H V ANs as described in Figure A – 42 – I EC 61 851 -21 -1 :201 © I EC 201 L1 Suppl y lin e HV + EUT HV + C1 R2 Measuri ng port HV+ (term inated with 50 Ω ) C2 R1 Ground L1 Suppl y lin e HV - EUT HV– C1 Measuri ng port HV– (term inated with 50 Ω ) C2 R2 R1 Ground IEC F i g u re A – E x a m p l e o f in µ H H V AN a si n g l e sh i el d ed co m b i n ati o n box An optional im pedance m atching network may be used to sim ulate comm on mode/differential mode im pedance seen by the device under test (EUT) plugged into an H V power suppl y (see Figure A 6) The param eters of this optional im pedance m atching network have to be defined in the test plan L1 Suppl y lin e HV+ R2 C1 C2 R1 Measuring port HV+ (term i n ated wi th 50 Ω ) R2 C2 co mmo n mod e Ground Ground L1 Suppl y lin e HV– EUT HV+ Di fferen ti al an d EUT HV– i mped an ce C1 R1 Measuring port HV– (term i n ated wi th 50 Ω ) Ground Ground IEC F i g u re A – I m p e d a n c e m a t c h i n g n e t w o rk a t t a c h e d b e twe e n A C om p on en ts i n vol ved H V AN s a n d i n c h a rg i n g EUT m o d e co n n e cte d t o D C p o we r s u p p l y For a com ponent involved in charging mode (e g charger) connected to a DC power supply, µ H /50 Ω -AN as defined in Clause A.3 shall be used I EC 61 851 -21 -1 :201 © I EC 201 A.4 – 43 – Artificial mains networks (AMN) For a components involved in charging mode (e g charger) connected to an AC power mains, 50 µ H /50 Ω -AMN as defined in CI SPR 6-1 -2:201 4, 3, shall be used The AMN(s) shall be m ounted directl y on the ground plane The case of the AMN(s) shall be bonded to the ground plane The DC resistance between the ground of the AMN m easurement port and the ground plane shall not exceed 2, m Ω Measurem ent ports of AMN(s) shall be term inated with a 50 Ω load A.5 A.5.1 Asymmetric artificial networks (AAN) General Currentl y different types of communication system s and comm unication cabling are used for the comm unication between charging station and vehicle Therefore a distinction between som e specific cabling/operation types is necessary The AAN(s) shall be mounted directl y on the ground plane The grounding connection of the AAN(s) shall be bonded to the ground plane with a low inductivity connection Unused m easurement ports of AAN(s) shall be term inated with the corresponding load (50 Ω for the coaxial output of the I S in Figure A.7) A.5.2 Symmetric communication lines (e.g CAN) An asymmetric artificial network (AAN) is to be connected between vehicle and charging station, respectivel y Communication sim ulation is defined in CI SPR 22: 2008, and Annex D, see exam ple in Figure A.6 The I S has a com mon m ode im pedance of 50 Ω The impedance Zcat adjusts the symm etry of the cabling and attached periphery typicall y expressed as longitudinal conversion loss (LCL) The value of LCL should be predeterm ined by m easurements or be defined by the m anufacturer of the charging station/ch arging cable The selected value for LCL and its origin shall be stated in the test report – 44 – I EC 61 851 -21 -1 :201 © I EC 201 AAN Balanced pair EUT L1 AE Z cat C R C R L2 Rx 50 Ω IEC Key C = 4, µ F R = 200 Ω L1 = × 38 m H L1 = × 38 m H AE = Associated equi pm ent EUT = Equi pm ent und er test Source: CI SPR 22: 2008, Annex D Figu re A.7 – Example of an impedance stabilization network for symmetric communication lines A.5.3 PLC on power lines At present, there is no CI SPR standard to cover the EMC of powerline comm unication (PLC) system s completel y The circuits shown in Figure A and Figure A allow at least em ission measurem ents for out-of-band em issions and imm unity tests For in-band emission measurem ents a disturbance current (common m ode) m easurem ent (as defined in CI SPR 6-2-1 : 201 4) on the charging cable m ay be performed I n case of in-band em ission measurem ents, the disturbance current should fulfil the requirements for conducted disturbance currents on network and telecommunication access The circuit in Figure A provides a com mon mode term ination by the AN For em ission testing onl y the emissions from the PLC m odem of the EUT should be m easured I n case the aux equipm ent signal levels cannot be set by software (in reference to I SO 51 8-3), an attenuator is located between powerline and the PLC m odem on the AE side in the circuit for emission tests This attenuator consists of two resistors in com bination with the input/output im pedance of the PLC modem The value of the resistors depends on the design impedance of the PLC modems and the allowed attenuation for the PLC system I EC 61 851 -21 -1 :201 © I EC 201 – 45 – Mai ns AN × 2, k Ω × 4, nF AE (PLC) IEC The val ue of the resistors depends on the allowed attenu ation and the desig n im ped ance of the PLC m odem (here: 40 dB attenuation, 00 Ω PLC design im pedance) Figure A.8 – Example of a circuit for emission tests of PLC on AC or DC powerlines The attenuator between the two PLC modems will reduce the signal-to-noise ratio on the line, which would give unrealistic results during imm unity testing Therefore, im munity tests should be perform ed without the attenuator (see Figure A 9) Mai ns AN × 4, nF AE (PLC) IEC Figu re A.9 – Example of a circuit for immunity tests of PLC on AC or DC powerlines A.5.4 PLC (technology) on control pilot Some comm unication system s make use of the control pilot line (versus PE) with a superimposed (high frequency) comm unication Typicall y the technology developed for powerline communication (PLC) is used for that purpose On on e hand the comm unication lines are operated unsymm etricall y, on the other hand two different com munication system s operate on the same line Therefore a special network shall be used The network shown in Figure A provides a common m ode impedance of 50 Ω ± 20 Ω (1 50 kH z to 30 MH z) on the control pilot line (assuming a design im pedance of the m odem of 00 Ω ) Both types of communications (control pilot, PLC) are separated by the network Therefore, typically a communication sim ulation is used in com bination with this network The attenuator built by the resistors and the design impedance of the PLC modem m akes sure that the signal on the charging cable is dominated by the EUT’s comm unication signals rather than the AE PLC m odem Alternatively in order to assure that the signal is dom inated by the EU T’s comm unication signal the transmission power of the AE PLC m odem needs to be properl y adjusted to be lower than EUT’s transmit power – 46 – I EC 61 851 -21 -1 :201 © I EC 201 00 µ H EUT AE (Pilot) 2, nF 39 Ω AE (PLC) 270 Ω 39 Ω 2, nF IEC The val ues of th e th ree resistors d epend on th e d esign imped ance of the PLC m odem connected on AE side The valu es gi ven i n the schem atic are val id for a d esign im pedance of 00 Ω Figure A.1 – Example of a circuit for emission tests of PLC on control pilot line The attenuator between the two PLC modem s will reduce the signal-to-noise ratio on the line, which would give unrealistic results during immunity testing Therefore, im munity tests shoul d be perform ed without the attenuator (see Figure A 1 ) EUT 00 µ H AE (Pilot) 2, nF AE (PLC) 2, nF IEC Figure A.1 – Example of a circuit for immunity tests of PLC on control pilot line I EC 61 851 -21 -1 :201 © I EC 201 – 47 – Bibliography I EC 61 851 -21 -2:—, Electric vehicle conductive charging system – Part 21-2: EMC requirements for off-board electric vehicle charging systems I SO 51 8-3, Road vehicles – Vehicle to grid communication interface – Part 3: Physical and data link layer requirements CI SPR 6-1 -4: 201 0, Specification for radio disturbance and immunity measuring apparatus and methods – Part 1-4: Radio disturbance and immunity measuring apparatus – Antennas and test sites for radiated disturbance measurements CI SPR 6-1 -4: 201 0/AM D1 : 201 CI SPR 6-1 -4: 201 0/AM D2: 201 _ _ Under preparati on Stag e at th e tim e of publicati on: I EC PRVC 61 851 -21 -2: 201 INTERNATIONAL ELECTROTECHNICAL COMMISSI ON 3, rue de Varembé PO Box 31 CH-1 21 Geneva 20 Switzerland Tel: + 41 22 91 02 1 Fax: + 41 22 91 03 00 info@iec.ch www.iec.ch