Photovoltaic power generating systems - EMC requirements and test methods for power conversion equipment

This standard specifies electromagnetic compatibility (EMC) requirements for DC to AC power conversion equipment (PCE) for use in photovoltaic (PV) power systems. The PCE covered by this document can be grid-interactive or stand-alone. It can be supplied by single or multiple photovoltaic modules grouped in various array configurations, and can be intended for use in conjunction with batteries or other forms of energy storage. This document covers not only PCE connected to a public low voltage AC mains network or other low voltage AC mains installation, but also PCE connected to a medium or high voltage AC network with or without step-down power transformers.

Photovoltaische Stromerzeugungssysteme - EMV-Anforderungen und Prüfverfahren für Leistungsumrichter

Systèmes de production d'énergie photovoltaïque - Exigences de CEM et méthodes d'essai pour les équipements de conversion de puissance

Fotonapetostni energetski sistemi - Zahteve EMC in preskusne metode za opremo močnostnih pretvornikov - Dopolnilo AB

General Information

Status
Not Published
Publication Date
16-Apr-2024
Current Stage
4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
Start Date
07-Jul-2023
Due Date
27-Jul-2022
Completion Date
07-Jul-2023

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SLOVENSKI STANDARD
SIST EN 62920:2017/oprAB:2023
01-julij-2023
Fotonapetostni energetski sistemi - Zahteve EMC in preskusne metode za opremo
močnostnih pretvornikov - Dopolnilo AB
Photovoltaic power generating systems - EMC requirements and test methods for power
conversion equipment
Photovoltaische Stromerzeugungssysteme - EMV-Anforderungen und Prüfverfahren für
Leistungsumrichter
Systèmes de production d'énergie photovoltaïque - Exigences de CEM et méthodes
d'essai pour les équipements de conversion de puissance
Ta slovenski standard je istoveten z: EN 62920:2017/prAB
ICS:
27.160 Sončna energija Solar energy engineering
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
SIST EN 62920:2017/oprAB:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62920:2017/oprAB:2023

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SIST EN 62920:2017/oprAB:2023


EUROPEAN STANDARD DRAFT
EN 62920:2017
NORME EUROPÉENNE

EUROPÄISCHE NORM
prAB
April 2023
ICS 27.160 -
English Version
Photovoltaic power generating systems - EMC requirements and
test methods for power conversion equipment
To be completed Photovoltaische Stromerzeugungssysteme - EMV-
Anforderungen und Prüfverfahren für Leistungsumrichter
This draft amendment prAB, if approved, will modify the European Standard EN 62920:2017; it is submitted to CENELEC members for
enquiry.
Deadline for CENELEC: 2023-07-07.

It has been drawn up by CLC/TC 82.

If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

This draft amendment was established by CENELEC 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 CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 74253 Ref. No. EN 62920:2017/prAB E

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SIST EN 62920:2017/oprAB:2023
EN 62920:2017/prAB:2023 (E)
Contents Page
1 Modification to Contents . 4
2 Modification to the Scope . 4
3 Modification to Clause 3, “Terms and definitions” . 4
4 Modifications to Clause 5, “Test setup for type test” . 4
5 Modifications to Clause 6, “Operating conditions during testing” . 4
6 Modifications to Clause 7, “Immunity requirements” . 5
7 Modifications to Clause 8, “Emission requirements” . 8
8 Modification to Clause 9, “Test procedures, results and report” . 10
9 Modifications to Annex A, “Configuration examples of test setups” . 11
10 Replacement of Annex ZA, “Normative references to international publications with their
corresponding European publications” and Annex ZZ, “Relationship between this
European standard and the essential requirements of Directive 2014/30/EU [2014 OJ L96]
aimed to be covered” . 11
Annex ZA (normative) Normative references to international publications with their
corresponding European publications . 12
Annex ZZ (informative) Relationship between this European standard and the essential
requirements of Directive 2014/30/EU [2014 OJ L96] aimed to be covered . 14
2

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SIST EN 62920:2017/oprAB:2023
EN 62920:2017/prAB:2023 (E)
European foreword
This document (EN 62920:2017/prAB:2023) has been prepared by CLC/TC 82 “Solar photovoltaic energy
systems”.
This document is currently submitted to the Enquiry.
The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
This document is read in conjunction with EN 62920:2017, EN 62920:2017/A11:2020, and
EN 62920:2017/A1:2021.
EN 62920:2017/prAB:2023 includes the following modifications:
— changes to satisfy the European requirements for a harmonized standard to be recognized by the
European Commission;
— normative references updated;
— Annex ZA updated;
— both repetition frequencies of 5kHz and 100kHz for electrical fast transient burst test applied;
— conducted emissions measurement requirements on signal and control ports lines set to 3 m.
This document has been prepared under a Standardization Request given to CENELEC by the European
Commission and the European Free Trade Association, and supports essential requirements of EU
Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZZ, which is an integral part of
this document.
3

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SIST EN 62920:2017/oprAB:2023
EN 62920:2017/prAB:2023 (E)
1 Modification to Contents
Replace “Table 10” with “Table 11”.
Replace “Table 11” with “Table 12”.
Replace “Table 12” with “Table 13”.
Replace “Table 13” with “Table 14”.
Replace “Table 14” with “Table 10”.
2 Modification to the Scope
Replace the last paragraph of the Scope with the following:
“When compliance with EMC requirements at the test site cannot be shown due to technical reasons of the
test site, PCE can be assessed in situ. However, only high frequency emission requirements for in situ
assessment are specified in CISPR 11.”
3 Modification to Clause 3, “Terms and definitions”
Replace term entry 3.3 with the following:

3.3
photovoltaic module
PV module
complete and environmentally protected assembly of interconnected photovoltaic cells
[SOURCE: IEC TS 61836:2016, 3.1.48.7, modified – The note has been deleted.]”
4 Modifications to Clause 5, “Test setup for type test”
In 5.2.1 General, replace the first paragraph with the following:
“For testing of immunity and emission requirements all components of the PCE shall be used under conditions
in accordance with installation instructions to be applied.“
In 5.2.3.1 Harmonics, replace the existing paragraph with the following
“Detailed instruction for measurements is defined in IEC 61000-4-7. The test procedures are given in
IEC 61000-3-2 for ≤ 16 A or IEC 61000-3-12 for > 16 A and ≤ 75 A. If auxiliary AC power ports are connected
to a public low voltage AC mains power distribution network or other low voltage AC mains installation, the
auxiliary AC power shall be assessed as well. Examples of measurement circuit for harmonic currents are
illustrated in B.2.1.”
In 5.2.3.2 Voltage fluctuations and flicker, replace the existing paragraph with the following:
“Detailed instruction for measurements is defined in IEC 61000-4-7. Test procedures are given in
IEC 61000-3-3 for ≤ 16 A or IEC 61000-3-11 for ≤ 75 A. If auxiliary AC power ports are connected to a public
low voltage AC mains power distribution network or other low voltage AC mains installation, the auxiliary AC
power shall be assessed as well. Examples of test circuit are given in B.2.2.”
5 Modifications to Clause 6, “Operating conditions during testing”
In 6.2 Operating conditions for immunity requirements test, replace the existing first sentence with the
following:
“The immunity test shall be carried out within the normal operating range specified for intended use.”
4

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SIST EN 62920:2017/oprAB:2023
EN 62920:2017/prAB:2023 (E)
In 6.4 Operating conditions for high frequency emission requirement test, replace the existing first
sentence with the following:
“The operating conditions for the high frequency emission test shall be carried out under standby and
operating modes of intended use and worst-case conditions determined by preliminary testing.”
6 Modifications to Clause 7, “Immunity requirements”
In 7.1 Requirements:
insert the following sentence after the first sentence:
“In Table 1 and Table 2 both repetition frequencies of 5kHz and 100kHz for electrical fast transient burst test
(IEC 61000-4-4) shall be applied.”
replace Table 1 Immunity requirements for class B PCE with the following table:

Table 1 — Immunity requirements for class B PCE
Reference standard for Performance
Port Phenomenon Test level
test method criteria
Enclosure Electrostatic IEC 61000-4-2 ±4 kV contact B
discharge (ESD) discharge
±8 kV air
discharge
Radiated, radio- IEC 61000-4-3 80 MHz to A
frequency, 1 000 MHz
electromagnetic
3 V/m
fields
80 % AM
(1 kHz)
Radiated, radio- IEC 61000-4-3 1,4 GHz to A
frequency, 6 GHz
electromagnetic
3 V/m
fields
80 % AM
(1 kHz)
AC power Electrical fast IEC 61000-4-4 ±1 kV B
transient/burst
5 kHz and
a
100 kHz
Surge IEC 61000-4-5 ±1 kV (line to B
line)
±2 kV (line to
earth)
Conducted IEC 61000-4-6 0,15 MHz to A
disturbances 80 MHz
induced by
3 V
radio-frequency
80 % AM
fields
(1 kHz)
DC power Electrical fast IEC 61000-4-4 ±0,5 kV B
transient/burst
5 kHz and
a
100 kHz
5

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SIST EN 62920:2017/oprAB:2023
EN 62920:2017/prAB:2023 (E)
Reference standard for Performance
Port Phenomenon Test level
test method criteria
c
IEC 61000-4-5 ±0,5 kV (line to B
Surge
line)
±1 kV (line to
earth)
Conducted IEC 61000-4-6 0,15 MHz to A
disturbances 80 MHz
induced by
3 V
radio-frequency
80 % AM
fields
(1kHz)
Signal and Electrical fast IEC 61000-4-4 ±0,5 kV B
b
control
transient/burst
100 kHz
(wired
Conducted IEC 61000-4-6 0,15 MHz to A
network)
disturbances 80 MHz
induced by
3 V
radio-frequency
80 % AM
fields
(1 kHz)
a
The test shall be performed at both repetition frequencies. The use of 5 kHz repetition frequency is
traditional; however, 100 kHz is closer to reality.
b
Applicable only to ports or interfaces with cables whose total length may exceed 3 m according to the
intended use.
c
Applicable only to ports with cables whose total length according to the intended use exceed 30 m or
intended for outdoor. In the case of shielded cable, a direct coupling to the shield is applied. This immunity
requirement does not apply to field bus or other signal interfaces where the use of surge protection devices
is not practical for technical reasons. The test is not required where normal functioning cannot be achieved
because of the impact of the CDN on the PCE even if an alternative test method shown in D.2.2 is applied.

replace Table 2 Immunity requirements for class a PCE with the following table:

Table 2 — Immunity requirements for class A PCE
Reference standard Performance
Port Phenomenon Test level
for test method criteria
Enclosure Electrostatic IEC 61000-4-2 ±4 kV contact discharge B
discharge (ESD)
±8 kV air discharge
Radiated, radio- IEC 61000-4-3 80 MHz to 1 000 MHz A
frequency,
10 V/m
electromagnetic
80 % AM (1 kHz)
fields
Radiated, radio- IEC 61000-4-3 1,4 GHz to 6 GHz A
frequency,
3 V/m
electromagnetic
80 % AM (1 kHz)
fields
AC power Electrical fast IEC 61000-4-4 ±2 kV B
b
transient/burst a
5 kHz and 100 kHz
6

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SIST EN 62920:2017/oprAB:2023
EN 62920:2017/prAB:2023 (E)
Reference standard Performance
Port Phenomenon Test level
for test method criteria
b
IEC 61000-4-5 ±1 kV (line to line) B
Surge
±2 kV (line to earth)
Conducted IEC 61000-4-6 0,15 MHz to 80 MHz A
disturbances
10 V
induced by radio-
80 % AM (1 kHz)
b
frequency fields
DC power Electrical fast IEC 61000-4-4 ±1 kV B
transient/burst
a
5 kHz and 100 kHz
d
IEC 61000-4-5 ±0,5 kV (line to line) B
Surge
±1 kV (line to earth)
Conducted IEC 61000-4-6 0,15 MHz to 80 MHz A
disturbances
10 V
induced by radio-
80 % AM (1 kHz)
b
frequency fields
Signal and Electrical fast IEC 61000-4-4 ±1 kV B
c
control
transient/burst a
5 kHz and 100 kHz
(wired
d
IEC 61000-4-5 ±1 kV (line to earth) B
Surge
network)
Conducted IEC 61000-4-6 0,15 MHz to 80 MHz A
disturbances
10 V
induced by radio-
80 % AM (1 kHz)
frequency fields
a
The test shall be performed at both repetition frequencies. The use of 5 kHz repetition frequency is
traditional; however, 100 kHz is closer to reality.
b
PCE-MV may be tested on the LV side in case that test equipment is not applicable to MV side.
c
Applicable only to ports or interfaces with cables whose total length may exceed 3 m according to the
intended use.
d
Applicable only to ports with cables whose total length according to the intended use may exceed 30 m or
intended for outdoor. In the case of shielded cable, a direct coupling to the shield is applied. This immunity
requirement does not apply to field bus or other signal interfaces where the use of surge protection devices
is not practical for technical reasons. The test is not required where normal functioning cannot be achieved
because of the impact of the CDN on the PCE even if an alternative test method shown in D.2.2 is applied.

replace the three sentences directly below Table 2 with the following Note:

NOTE In some countries, additional immunity requirements against voltage dips and interruption are specified with
their own grid codes. Those requirements may have to be applied to comply with national regulations or contractual
agreement between system operators and operators of AC mains networks.”
In 7.1 Performance criteria:
replace the second sentence of 7.2 with the following:
“A precise description and definition of performance criterion shall be noted in the test report based on the
intended use and the following criteria.”
and insert the following after the second sentence of 7.2:
“Only the performance criteria specified in this document apply.”
7

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SIST EN 62920:2017/oprAB:2023
EN 62920:2017/prAB:2023 (E)
7 Modifications to Clause 8, “Emission requirements”
In 8.1 Low frequency:
replace the third and fourth paragraph with the following:
“IEC 61000-3-2 is applicable only for products ≤ 16 A and IEC 61000-3-12 only for products ≤ 75 A, there is a
gap in the standards for products > 75 A.
Note For PCE > 75 A, contact distribution network operators (DNOs) for the appropriate harmonics level. For
industrial or private location, levels need to be set at the installation level by taking into account the local DNO’s
information. See IEC TR 61000-3-6 installation limits for high power products connected to MV and HV networks, and
IEC TR 61000-3-14 for high power products connected to LV networks.”
and replace the sixth and 7th paragraphs with the following:
“IEC 61000-3-3 is applicable only for products ≤ 16 A and IEC 61000-3-11 only for products ≤ 75 A, there is a
gap in the standards for products > 75 A.
NOTE For PCE > 75 A, IEC 61000-3-11 can be used for test method and the limit for Pst (short time flicker) equal to
1,0 for generators exporting energy to power supply system. Without limits the performance of the PCE can be
demonstrated within a datasheet to the DNOs.”
In 8.2.1.2 Disturbance voltage limits at the AC power port, replace the second paragraph with the
f
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