Testing the islanding protection function of photovoltaic inverters

被引：61

作者：

Woyte, A ^{[1
]}

Belmans, R ^{[1
]}

Nijs, J ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Elect Engn, B-3001 Louvain, Belgium

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 2003年 / 18卷 / 01期

关键词：

certification; inverters; islanding; photovoltaic power systems; protection; reactive power; safety; standardization; testing;

D O I：

10.1109/TEC.2002.808410

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A major safety issue in grid-connected photovoltaics is to avoid nonintentional operation in islanding mode when the grid is being tripped. Worst-case conditions under which islanding can occur are specified analytically. The circuit that is commonly for testing is described. The issue of appropriate test conditions with regard to reactive-power injection to the grid is discussed and the stabilizing impact of rotating machines and resonant circuits is evaluated in detail. Islanding test results for small inverters are presented. They confirm that very simple islanding protection methods that are commonly used, are likely to fail, if inverters are loaded with considerable capacitance. The obtained results support the assessment of the islanding protection function. They emphasize important points when defining new certification procedures for upcoming guidelines and standards.

引用

页码：157 / 162

页数：6

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