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BS EN 62116:2014

BS EN 62116:2014

$142.49

Utility-interconnected photovoltaic inverters. Test procedure of islanding prevention measures

Published By Publication Date Number of Pages
BSI 2014 30
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The purpose of this International 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. The test procedure and criteria described are minimum requirements that will allow repeatability. Additional requirements or more stringent criteria may be specified if demonstrable risk can be shown. Inverters and other devices meeting the requirements of this standard are considered non-islanding as defined in IEC 61727 .

This standard may be applied to other types of utility-interconnected systems (e.g. inverter-based microturbine and fuel cells, induction and synchronous machines). However, technical review may be necessary for other than inverter-based PV systems.

PDF Catalog

PDF Pages PDF Title
4 Foreword
5 Endorsement notice
6 Annex ZA (normative) Normative references to international publications with their corresponding European publications
7 English
CONTENTS
9 INTRODUCTION
10 1 Scope
2 Normative references
3 Terms and definitions
12 4 Testing circuit
13 Tables
Table 1 – Parameters to be measured in real time
14 5 Testing equipment
5.1 Measuring instruments
5.2 DC power source
5.2.1 General
Figures
Figure 1 – Test circuit for islanding detection function in a power conditioner (inverter)
15 5.2.2 PV array simulator
5.2.3 Current and voltage limited DC power supply with series resistance
5.2.4 PV array
Table 2 – Specification of array simulator (test conditions)
16 5.3 AC power source
5.4 AC loads
6 Test for single or multi-phase inverter
6.1 Test procedure
Table 3 – PV array test conditions
Table 4 – AC power source requirements
17 Table 5 – Test conditions
19 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 %)
20 6.2 Pass/fail criteria
7 Documentation
Table 8 – Specification of the EUT provided by the manufacturer (example)
21 Table 9 – List of tested condition and run on time (example)
22 Table 10 – Specification of testing equipment (example)
23 Annex A (informative) Islanding as it applies to PV systems
A.1 General
24 A.2 Impact of distortion on islanding
25 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
Figure B.1 – Test circuit for independent islanding detection device (relay)
26 B.4 Testing procedure
B.5 Documentation
27 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
28 Bibliography

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BS EN 62116:2014
$142.49