oSIST prEN IEC 62909-3:2023

Bi-directional grid connected power converters - Part 3: EMC requirements and test methods

Bidirektionale netzgekoppelte Leistungsumrichter - Teil 3: EMV-Anforderungen und Prüfverfahren

Convertisseurs de puissance connectés aux réseaux bidirectionnels - Partie 3: Exigences CEM et méthodes d’essai

Dvosmerni omrežni elektroenergetski pretvorniki - 3. del: Zahteve EMC in preskusne metode

General Information

• Status: Not Published
• Public Enquiry End Date: 21-May-2023
• ICS: 29.200 - Rectifiers. Convertors. Stabilized power supply
• ICS: 33.100.01 - Electromagnetic compatibility in general
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 07-Mar-2023
• Due Date: 25-Jul-2023
• Completion Date: 30-May-2023
• Ref Project: prEN IEC 62909-3:2023 - Bi-directional grid connected power converters - Part 3: EMC requirements and test methods

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 62909-3:2023
01-maj-2023
Dvosmerni omrežni elektroenergetski pretvorniki - 3. del: Zahteve EMC in
preskusne metode
Bi-directional grid connected power converters - Part 3: EMC requirements and test
methods
Convertisseurs de puissance connectés aux réseaux bidirectionnels - Partie 3:
Exigences CEM et méthodes d’essai
Ta slovenski standard je istoveten z: prEN IEC 62909-3:2023
ICS:
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
oSIST prEN IEC 62909-3:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN IEC 62909-3:2023

---------------------- Page: 2 ----------------------
oSIST prEN IEC 62909-3:2023
22E/247/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62909-3 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-03-03 2023-05-26
SUPERSEDES DOCUMENTS:
22E/229/CD, 22E/246/CC

IEC SC 22E : STABILIZED POWER SUPPLIES
SECRETARIAT: SECRETARY:
Germany Mr Clemens Klemm
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 64,TC 69,TC 77,TC 82,TC 120,CIS/B
Other TC/SCs are requested to indicate their interest,
if any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee
Draft for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of
• any relevant patent rights of which they are aware and to provide supporting documentation,
• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are
reminded that the enquiry stage is the final stage for submitting "in some countries" clauses. See
AC/22/2007.

TITLE:
Bi-directional grid connected power converters - Part 3: EMC requirements and test methods

PROPOSED STABILITY DATE: 2026

NOTE FROM TC/SC OFFICERS:


Copyright © 2023 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing
National Committee positions. You may not copy or "mirror" the file or printed version of the document, or any
part of it, for any other purpose without permission in writing from IEC.

---------------------- Page: 3 ----------------------
oSIST prEN IEC 62909-3:2023
IEC CDV 62909-3 © IEC 2023 – 2 –       22E/247/CDV

1 CONTENTS
2
3 FOREWORD . 6
4 INTRODUCTION . 8
5 1 Scope . 9
6 2 Normative references . 9
7 3 Terms, definitions . 12
8 4 Classification of GCPC . 18
9 4.1 Division into classes . 18
10 4.2 Information for users . 18
11 5 Measurement and test setup . 19
12 5.1 General . 19
13 5.2 Configuration of test setups . 19
14 5.2.1 General . 19
15 5.2.2 Setups for immunity requirement test . 20
16 5.2.3 Setups for low frequency emission requirement test . 20
17 5.2.4 Setups for high frequency emission requirement test . 21
18 6 Operating conditions during testing . 21
19 6.1 General . 21
20 6.2 Operating conditions for immunity requirement test . 21
21 6.2.1 Operating conditions for immunity requirement test for GCPC with EV
22 section . 21
23 6.3 Operating conditions for emission requirement test . 22
24 6.3.1 Operating conditions for low frequency emission requirement test . 22
25 6.3.2 Operating conditions for high frequency emission requirement test . 22
26 6.3.3 Operating conditions for emission requirement test for GCPC with EV
27 section . 22
28 7 Immunity requirements . 23
29 7.1 General . 23
30 7.2 Immunity requirements against electric discharge (ESD) . 23
31 7.3 Immunity requirements against radiated, radiofrequency, and
32 electromagnetic fields . 23
33 7.4 Immunity requirements against magnetic fields . 24
34 7.5 Immunity requirements against electrical fast transient/burst . 24
35 7.6 Immunity requirements against surge . 24
36 7.7 Immunity requirements against conducted disturbances induced by
37 radiofrequency fields . 25
38 7.8 Immunity requirements against voltage dips . 25
39 7.9 Immunity requirements against voltage interruption . 25
40 7.10 Immunity requirements against harmonics . 25
41 8 Emission requirements . 27
42 8.1 Low frequency range . 27
43 8.2 High frequency range . 27
44 8.2.1 Disturbance voltage limits at the AC power port (150kHz to 30MHz) . 27
45 8.2.2 Disturbance voltage limits at the DC power port (150kHz to 30MHz) . 27
46 8.2.3 Disturbance voltage limits at the CPT port (150kHz to 30MHz) . 28
47 8.2.4 Disturbance voltage limits at the wired network port and the signal and
48 control port (150kHz to 30MHz) . 28

---------------------- Page: 4 ----------------------
oSIST prEN IEC 62909-3:2023
IEC CDV 62909-3 © IEC 2023 – 3 –       22E/247/CDV

49 8.2.5 Radiated emission limits at Enclosure port (above 30 MHz) . 28
50 9 Test results and test report . 29
51 Annex A (informative) Examples of GCPC . 30
52 A.1 General . 30
53 A.2 Examples of GCPC within the scope of IEC62909-3 . 30
54 A.3 Examples of GCPC where other standards apply . 32
55 Annex B (informative) Overview of Requirements . 33
56 B.1 General . 33
57 B.2 Immunity requirements . 33
58 B.3 Conducted emission requirements . 33
59 B.4 Radiated emission requirements . 34
60 Annex C (informative) Immunity requirements comparison between the referenced
61 standards . 35
62 Annex D (informative) Emission limits requirements of the referenced standards . 41
63 D.1 General . 41
64 D.2 Limits for harmonic current emissions (equipment input current ≤16 A per
65 phase) . 41
66 D.3 Limitation of voltage changes, voltage fluctuations and flicker in public low-
67 voltage supply systems, for equipment with rated current ≤ 16 A per phase
68 and not subject to conditional connection . 43
69 D.4 Limitation of voltage changes, voltage fluctuations and flicker in public low-
70 voltage supply systems – Equipment with rated current ≤75 A and subject to
71 conditional connection . 43
72 D.5 Limits for conducted disturbances . 43
73 D.6 CPT port (150 kHz to 30 MHz) . 46
74 D.7 Disturbance voltage limits at the wired network port and the signal and
75 control port (150kHz to 30MHz) . 46
76 D.8 Radiated emission limits at Enclosure port (above 30 MHz) . 47
77 D.8.1 GCPC with the EV section . 47
78 D.8.2 GCPC without the EV section . 49
79 Bibliography . 51
80
81 Figure 1 – Example of ports . 14
82 Figure 2 – Examples of installation of GCPC . 18
83 Figure A.1 – Multiport GCPC with Battery, PV and CPT ports . 30
84 Figure A.2 – Multiport GCPC with Battery and CPT ports . 30
85 Figure A.3 – Multiport GCPC with multiple CPT ports . 31
86 Figure A.4 – Multiport GCPC with Battery and CPT ports which is a product system
87 variant of the GCPC in Figure A.2 but cannot connect to EV . 31
88 Figure A.5 – Multiport GCPC with Battery and CPT ports which is a product system
89 variant of the GCPC in Figure A.2 but cannot connect to EV and without DC/DC
90 converter for EV . 31
91 Figure A.6 – Equipment in scope of IEC62920: Multiport GCPC with PV and battery
92 ports . 32
93 Figure A.7 – Equipment in scope of IEC 61851-21-2: GCPC with a CPT port . 32
94 Figure B.1 – Overview on port related immunity requirements . 33
95 Figure B.2 – Overview on port related conducted emission . 33
96 Figure B.3 – Overview on radiated emission . 34
97

---------------------- Page: 5 ----------------------
oSIST prEN IEC 62909-3:2023
IEC CDV 62909-3 © IEC 2023 – 4 –       22E/247/CDV

98 Table 1 – Alphabetical list of terms . 12
99 Table 2 – Immunity requirements against electrostatic discharge (ESD) . 23
100 Table 3 – Immunity requirements against radiated, radiofrequency, and
101 electromagnetic fields . 23
102 Table 4 – Immunity requirements against magnetic fields . 24
103 Table 5 – Immunity requirements against electrical fast transient/burst . 24
104 Table 6 – Immunity requirements against surge . 24
105 Table 7 – Immunity requirements against conducted disturbances induced by
106 radiofrequency fields. 25
107 Table 8 – Immunity requirements against voltage dips . 25
108 Table 9 – Immunity requirements against voltage interruption . 25
109 Table 10 – Immunity requirements against harmonics . 26
110 Table 11 – References for evaluation of low frequency (LF) phenomena . 27
111 Table 12 –Disturbance voltage limits equipment for AC power input port. . 27
112 Table 13 – Disturbance voltage limits equipment for DC power port. . 27
113 Table 14 – Disturbance voltage limits equipment for CPT port. . 28
114 Table 15 – Disturbance voltage limits equipment for the wired network port and the
115 signal and control port. . 28
116 Table 16 – Requirements for radiated emissions . 28
117 Table C.1 – Comparison of immunity requirements for enclosure port on the GCPC of
118 Class B . 35
119 Table C.2 – Comparison of immunity requirements for AC power port on the GCPC of
120 Class B . 35
121 Table C.3 – Comparison of immunity requirements for DC power port and CPT port on
122 the GCPC of Class B . 36
123 Table C.4 – Comparison of immunity requirements for signal and control (wired
124 network) port on the GCPC of Class B . 37
125 Table C.5 – Comparison of immunity requirements for enclosure port on the GCPC of
126 Class A . 37
127 Table C.6 – Comparison of immunity requirements for AC power port on the GCPC of
128 Class A . 38
129 Table C.7 – Comparison of immunity requirements for DC power port and CPT port on
130 the GCPC of Class A . 39
131 Table C.8 – Comparison of immunity requirements for signal and control (wired
132 network) port on the GCPC of Class A . 39
133 Table C.9 –Minimum immunity requirements for total harmonic distortion on power
134 ports of low voltage . 40
135 Table D.1 – Class A equipment as defined by IEC 61000-2-2 . 41
136 Table D.2 – Current emission limits for equipment other than balanced three-phase
137 equipment . 41
138 Table D.3 – Current emission limits for balanced three-phase equipment. 42
139 Table D.4 – Current emission limits for balanced three-phase equipment under
140 specified conditions (a, b, c) . 42
141 Table D.5 – Current emission limits for balanced three-phase equipment under
142 specified conditions (d, e, f) . 43
143 Table D.6 – Disturbance voltage limits for Class A group 1 equipment measured on a
144 test site (a.c. mains power port) . 43
145 Table D.7 – Limits for conducted disturbances of Class A group 1 equipment measured
146 on a test site (d.c. power port) . 44

---------------------- Page: 6 ----------------------
oSIST prEN IEC 62909-3:2023
IEC CDV 62909-3 © IEC 2023 – 5 –       22E/247/CDV

147 Table D.8 – Disturbance voltage limits for Class B group 1 equipment measured on a
148 test site (a.c. mains power port) . 45
149 Table D.9 – Disturbance voltage limits for Class B group 1 equipment measured on a
150 test site (d.c. power port) . 45
151 Table D.10 – Applicability of measurements at d.c. power ports . 45
152 Table D.11 – Disturbance voltage limits for Class A equipment for AC CPT port . 46
153 Table D.12 – Disturbance voltage limits for Class B equipment for AC CPT port . 46
154 Table D.13 – Disturbance voltage limits for DC CPT port . 46
155 Table D.14 – Limits of conducted common mode (asymmetric mode) disturbance at the
156 wired port for Class A GCPC. 46
157 Table D.15 – Limits of conducted common mode (asymmetric mode) disturbance at the
158 wired port for Class B GCPC. 47
159 Table D.16 – Required highest frequency for radiated measurement. 47
160 Table D.17 – Requirements for radiated emissions at frequencies up to 1 GHz for
161 Class A GCPC with the EV section . 47
162 Table D.18 – Requirements for radiated emissions at frequencies above 1 GHz for
163 Class A GCPC with the EV section . 48
164 Table D.19 – Requirements for radiated emissions at frequencies up to 1 GHz for
165 Class B GCPC with the EV section . 48
166 Table D.20 – Requirements for radiated emissions at frequencies above 1 GHz for
167 Class B GCPC with the EV section . 48
168 Table D.21 – Electromagnetic radiation disturbance limits for Class A GCPC without
169 the EV section measured on a test site . 49
170 Table D.22 – Electromagnetic radiation disturbance limits for Class B GCPC without
171 the EV section measured on a test site . 50
172
173
174

---------------------- Page: 7 ----------------------
oSIST prEN IEC 62909-3:2023
IEC CDV 62909-3 © IEC 2023 – 6 –       22E/247/CDV

175 INTERNATIONAL ELECTROTECHNICAL COMMISSION
176 ____________
177
178 BI-DIRECTIONAL GRID CONNECTED POWER CONVERTERS –
179
180 Part 3: EMC requirements and test methods
181
182
183 FOREWORD
184 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
185 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
186 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
187 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
188 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
189 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
190 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
191 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
192 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
193 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
194 consensus of opinion on the relevant subjects since each technical committee has representation from all
195 interested IEC National Committees.
196 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
197 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
198 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
199 misinterpretation by any end user.
200 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
201 transparently to the maximum extent possible in their national and regional publications. Any divergence between
202 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
203 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
204 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
205 services carried out by independent certification bodies.
206 6) All users should ensure that they have the latest edition of this publication.
207 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
208 members of its technical committees and IEC National Committees for any personal injury, property damage or
209 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
210 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
211 Publications.
212 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
213 indispensable for the correct application of this publication.
214 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
215 rights. IEC shall not be held responsible for identifying any or all such patent rights.
216 International Standard IEC 62909-3 has been prepared by subcommittee 22E: Stabilized power
217 supplies, of IEC technical committee 22: Power electronic systems and equipment.
218 The text of this International Standard is based on the following documents:
FDIS Report on voting
22E/XX/FDIS 22E/XX/RVD
219 Full information on the voting for the approval of this International Standard can be found in the
220 report on voting indicated in the above table.
221 Editors note The description above must be adequately modified.
222 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
223 The committee has decided that the contents of this document will remain unchanged until the
224 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
225 the specific document. At this date, the document will be

---------------------- Page: 8 ----------------------
oSIST prEN IEC 62909-3:2023
IEC CDV 62909-3 © IEC 2023 – 7 –       22E/247/CDV

226 • reconfirmed,
227 • withdrawn,
228 • replaced by a revised edition, or
229 • amended.
230
231 The National Committees are requested to note that for this document the stability date
232 is 20XX.
233 THIS TEXT IS INCLUDED FOR THE INFORMATION OF THE NATIONAL COMMITTEES AND WILL BE DELETED
234 AT THE PUBLICATION STAGE.
235

---------------------- Page: 9 ----------------------
oSIST prEN IEC 62909-3:2023
IEC CDV 62909-3 © IEC 2023 – 8 –       22E/247/CDV

236 INTRODUCTION
237 In order to optimize power consumption, for example, within the home power management, it is
238 necessary to optimally combine electricity generation with rechargeable energy storage. This
239 optimization is accomplished, in part, by providing an efficient transfer between DC and AC
240 electricity to accommodate storage batteries. IEC 62909 standards describe a bidirectional grid-
241 connected power converter (GCPC) efficiently connected for example to sources of power
242 generation and energy storage.
243 IEC 62909-1 defines common general requirements, independent from the special
244 characteristics of individual applications. IEC 62909-2 defines the additional requirements
245 necessary for interfacing particular types of distributed energy resources to a GCPC. IEC
246 62909-3 presents the EMC requirements for GCPC.
247 GCPCs can be connected to multiple kinds of distributed energy resources. While there are
248 EMC requirements for power electronic converters for single distributed energy resources, for
249 example solar systems or battery storage systems, those requirements are in some cases
250 different from each other. Hence, it is necessary to clarify which requirements should be applied
251 to the various types of GCPCs.
252

---------------------- Page: 10 ----------------------
oSIST prEN IEC 62909-3:2023
IEC CDV 62909-3 © IEC 2023 – 9 –       22E/247/CDV

253 BI-DIRECTIONAL GRID CONNECTED POWER CONVERTERS –
254
255 Part 3: EMC requirements and test methods
256
257
258
259 1 Scope
260 This part of IEC 62909 specifies electromagnetic immunity and emission requirements of bi-
261 directional grid-connected power converters (GCPCs) consiting of a grid-side inverter with two
262 or more DC ports on the application side with system voltages not exceeding 1 000 V AC or 1
263 500 V DC.
264
265 This document may also be used for special cases of GCPCs with only one DC port, where:
266 - GCPC with multiple physical DC ports is used in an application requiring only one DC port, or
267 - no dedicated product standard for such a single DC port GCPC is available.
268
269 This document considers GCPCs in both residential and non-residential environments.
270
271 This document does not cover:
272 - uninterruptible power supply (UPS) systems, which fall under the scope of IEC 62040 (all parts).
273 - power conv
...