IEC 62116-2014 Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures《有互联效应的光电变极器.孤立障碍措施的试验规程》.pdf

1、 IEC 62116 Edition 2.0 2014-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Utility-interconnected photovoltaic inverters Test procedure of islanding prevention measures Onduleurs photovoltaques interconnects au rseau public Procdure dessai des mesures de prvention contre llotage IEC 62116:2014-02(en

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19、bstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62116 Edition 2.0 2014-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Utility-interconnected photovoltaic inverters Test procedure of islanding prevention

20、measures Onduleurs photovoltaques interconnects au rseau public Procdure dessai des mesures de prvention contre llotage INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 27.160 PRICE CODE CODE PRIX ISBN 978-2-8322-1442-8 Registered trademark of the Internatio

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22、16:2014 IEC 2014 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 7 4 Testing circuit 9 5 Testing equipment . 11 5.1 Measuring instruments . 11 5.2 DC power source . 11 5.2.1 General 11 5.2.2 PV array simulator 12 5.2.3 Current and voltage limited DC

23、power supply with series resistance . 12 5.2.4 PV array . 12 5.3 AC power source . 13 5.4 AC loads 13 6 Test for single or multi-phase inverter 13 6.1 Test procedure . 13 6.2 Pass/fail criteria . 17 7 Documentation 17 Annex A (informative) Islanding as it applies to PV systems 20 A.1 General 20 A.2

24、Impact of distortion on islanding . 21 Annex B (informative) Test for independent islanding detection device (relay) . 22 B.1 General 22 B.2 Testing circuit 22 B.3 Testing equipment . 22 B.3.1 General 22 B.3.2 AC input source 22 B.4 Testing procedure 23 B.5 Documentation . 23 Annex C (informative) G

25、ate blocking signal 24 C.1 General 24 C.2 Gate blocking signal used in photovoltaic systems . 24 C.3 Monitoring the gate blocking signal 24 Bibliography 25 Figure 1 Test circuit for islanding detection function in a power conditioner (inverter) . 11 Figure B.1 Test circuit for independent islanding

26、detection device (relay) 22 Table 1 Parameters to be measured in real time 10 Table 2 Specification of array simulator (test conditions) 12 Table 3 PV array test conditions 13 Table 4 AC power source requirements . 13 Table 5 Test conditions 14 IEC 62116:2014 IEC 2014 3 Table 6 Load imbalance (real,

27、 reactive load) for test condition A (EUT output = 100 %) 16 Table 7 Load imbalance (reactive load) for test condition B (EUT output = 50 % to 66 %) and test condition C (EUT output = 25 % to 33 %) 16 Table 8 Specification of the EUT provided by the manufacturer (example) . 17 Table 9 List of tested

28、 condition and run on time (example) . 18 Table 10 Specification of testing equipment (example) . 19 4 IEC 62116:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ UTILITY-INTERCONNECTED PHOTOVOLTAIC INVERTERS TEST PROCEDURE OF ISLANDING PREVENTION MEASURES FOREWORD 1) The International Elect

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39、his IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62116 has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. This second edition cancels and replaces the

40、first edition issued in 2008 and constitutes a technical revision. The main technical changes with regard to the previous edition are as follows: IEC 62116:2014 IEC 2014 5 Previous edition Present edition Clause Real power Active power 3.7 5.1 5.4 6.1 b) 6.1 d) 6.1 e) 6.1 g) Table 1 Table 6 Table 7

41、Table 9 5.2 A PV array or PV array simulator (preferred) may be used. If the EUT can operate in utility-interconnected mode from a storage battery, a DC power source may be used in lieu of a battery as long as the DC power source is not the limiting device as far as the maximum EUT input current is

42、concerned. A DC power source, such as a PV array simulator, a PV array, or a current and voltage limited DC power supply with series resistance may be used. If the EUT can operate in utility-interconnected mode from a storage battery, a DC power source may be used in lieu of a battery as long as the

43、 DC power source shall not be the limiting device as far as the maximum EUT input current is concerned. Table 5 EUT input voltage 90 % EUT input voltage 75 % EUT input voltage 10 % EUT input voltage 20 % EUT Trip Settings Manufacturer specified voltage and frequency trip settings Voltage and frequen

44、cy trip settings according to National standards and/or local code Tables 6 that procedure is the subject of this document. This standard provides a consensus test procedure to evaluate the efficacy of islanding prevention measures used by the power conditioner of utility-interconnected PV systems.

45、Note that while this document specifically addresses inverters for photovoltaic systems, with some modifications the setup and procedure may also be used to evaluate inverters used with other generation sources or to evaluate separate anti-islanding devices intended for use in conjunction with PV in

46、verters or other generation sources acting as or supplementing the anti- islanding feature of those sources. Inverters and other devices meeting the requirements of this document can be considered non-islanding, meaning that under reasonable conditions, the device will detect island conditions and cease to energize the public electric power grid.