IEC 62920:2017

IEC 62920 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Photovoltaic power generating systems – EMC requirements and test methods
for power conversion equipment

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

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IEC 62920 ®
Edition 1.0 2017-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Photovoltaic power generating systems – EMC requirements and test methods

for power conversion equipment

Systèmes de production d’énergie photovoltaïque – Exigences de CEM et

méthodes d’essai pour les équipements de conversion de puissance

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.160 ISBN 978-2-8322-4603-0

– 2 – IEC 62920:2017 © IEC 2017
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 Classification of PCE . 12
4.1 Category of environment . 12
4.2 Division into classes . 13
4.3 Information for users . 13
5 Test setup for type test . 14
5.1 General . 14
5.2 Configuration of test setups . 14
5.2.1 General . 14
5.2.2 Setups for immunity requirement test . 15
5.2.3 Setups for low frequency emission requirement test . 16
5.2.4 Setups for high frequency emission requirement test . 16
6 Operating conditions during testing. 17
6.1 General . 17
6.2 Operating conditions for immunity requirement test . 17
6.3 Operating conditions for low frequency emission requirement test . 17
6.4 Operating conditions for high frequency emission requirement test . 17
7 Immunity requirements . 18
7.1 Requirements . 18
7.2 Performance criteria . 21
8 Emission requirements . 22
8.1 Low frequency . 22
8.2 High frequency . 24
8.2.1 Conducted emission . 24
8.2.2 Radiated emission . 27
9 Test results and test report . 28
Annex A (informative) Configuration examples of test setups . 29
A.1 General . 29
A.2 Setups for immunity requirement test . 29
A.2.1 Electrostatic discharge . 29
A.2.2 Radiated disturbances . 31
A.2.3 Electrical fast transient/burst . 32
A.2.4 Surge . 34
A.2.5 Conducted disturbances, induced by radio-frequency fields . 36
A.2.6 Voltage dips and interruption . 36
A.3 Setups for high frequency emission requirement test . 37
A.3.1 Conducted disturbances . 37
A.3.2 Radiated disturbances . 39
Annex B (informative) Setups for low frequency emission requirement test . 40
B.1 General . 40
B.2 Example of a test circuit for low frequency emission requirement test . 40
B.2.1 Harmonics . 40

B.2.2 Voltage fluctuations and flicker . 42
Annex C (informative) Test setup for conducted disturbance measurement . 44
C.1 General . 44
C.2 Examples of a test setup . 44
Annex D (informative) Alternative test methods for high-power PCE . 47
D.1 General . 47
D.2 Alternative method for immunity requirement test . 47
D.2.1 Alternative method for EFT/burst immunity test . 47
D.2.2 Alternative method for surge test . 47
D.2.3 Alternative test method for conducted disturbances, induced by radio-
frequency fields . 48
D.2.4 Conducted disturbances measurement . 49
Bibliography . 51

Figure 1 – Example of ports . 10
Figure 2 – Examples of installation of PV systems in both environments . 13
Figure 3 – Overview of harmonic requirements up to 75 A . 23
Figure 4 – Overview of voltage change requirements up to 75 A . 24
Figure A.1 – Example of a test setup for direct application of discharges to PCE . 30
Figure A.2 – Example of a test setup for indirect application of discharges to PCE . 30
Figure A.3 – Example of a test setup for wall-mounted PCE . 32
Figure A.4 – Example of a test setup for direct coupling of the test voltage to AC
mains power ports . 33
Figure A.5 – Example of a test setup for application of t
...