AS/NZS IEC 62116:2020
Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures
Objective of this Standard is to provide a test procedure to evaluate the performance of islanding prevention measures used with utility-interconnected PV systems. This Standard describes a guideline for testing the performance of automatic islanding prevention measures installed in or with single or multi-phase utility interactive PV inverters connected to the utility grid. This Standard is identical with, and has been reproduced from, IEC 62116:2014, Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures.
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AS/NZS IEC 62116:2020 Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Testing circuit
5 Testing equipment
5.1 Measuring instruments
5.2 DC power source
5.2.1 General
5.2.2 PV array simulator
5.2.3 Current and voltage limited DC power supply with series resistance
5.2.4 PV array
5.3 AC power source
5.4 AC loads
6 Test for single or multi-phase inverter
6.1 Test procedure
6.2 Pass/fail criteria
7 Documentation
Annex A (informative) Islanding as it applies to PV systems
A.1 General
A.2 Impact of distortion on islanding
Annex B (informative) Test for independent islanding detection device (relay)
B.1 General
B.2 Testing circuit
B.3 Testing equipment
B.3.1 General
B.3.2 AC input source
B.4 Testing procedure
B.5 Documentation
Annex C (informative) Gate blocking signal
C.1 General
C.2 Gate blocking signal used in photovoltaic systems
C.3 Monitoring the gate blocking signal
Bibliography
Figures
Figure 1 – Test circuit for islanding detection function in a power conditioner (inverter)
Figure B.1 – Test circuit for independent islanding detection device (relay)
Tables
Table 1 – Parameters to be measured in real time
Table 2 – Specification of array simulator (test conditions)
Table 3 – PV array test conditions
Table 4 – AC power source requirements
Table 5 – Test conditions
Table 6 – Load imbalance (real, reactive load) for test condition A (EUT output = 100 %)
Table 7 – Load imbalance (reactive load) for test condition B (EUT output = 50 % to 66 %) and test condition C (EUT output = 25 % to 33 %)
Table 8 – Specification of the EUT provided by the manufacturer (example)
Table 9 – List of tested condition and run on time (example)
Table 10 – Specification of testing equipment (example)
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AS/NZS IEC 62116:2020 Utility-interconnected photovoltaic inverters - Test procedure of islanding prevention measures
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Testing circuit
5 Testing equipment
5.1 Measuring instruments
5.2 DC power source
5.2.1 General
5.2.2 PV array simulator
5.2.3 Current and voltage limited DC power supply with series resistance
5.2.4 PV array
5.3 AC power source
5.4 AC loads
6 Test for single or multi-phase inverter
6.1 Test procedure
6.2 Pass/fail criteria
7 Documentation
Annex A (informative) Islanding as it applies to PV systems
A.1 General
A.2 Impact of distortion on islanding
Annex B (informative) Test for independent islanding detection device (relay)
B.1 General
B.2 Testing circuit
B.3 Testing equipment
B.3.1 General
B.3.2 AC input source
B.4 Testing procedure
B.5 Documentation
Annex C (informative) Gate blocking signal
C.1 General
C.2 Gate blocking signal used in photovoltaic systems
C.3 Monitoring the gate blocking signal
Bibliography
Figures
Figure 1 – Test circuit for islanding detection function in a power conditioner (inverter)
Figure B.1 – Test circuit for independent islanding detection device (relay)
Tables
Table 1 – Parameters to be measured in real time
Table 2 – Specification of array simulator (test conditions)
Table 3 – PV array test conditions
Table 4 – AC power source requirements
Table 5 – Test conditions
Table 6 – Load imbalance (real, reactive load) for test condition A (EUT output = 100 %)
Table 7 – Load imbalance (reactive load) for test condition B (EUT output = 50 % to 66 %) and test condition C (EUT output = 25 % to 33 %)
Table 8 – Specification of the EUT provided by the manufacturer (example)
Table 9 – List of tested condition and run on time (example)
Table 10 – Specification of testing equipment (example)
AS/NZS IEC 62116:2020
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.