Automatic phase-shift method for islanding detection of grid-connected photovoltaic inverters

被引：224

作者：

Hung, GK ^{[1
]}

Chang, CC

Chen, CL

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10764, Taiwan

[2] AmbitMicrosyst Co, Hsinchu, Taiwan

来源：

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

关键词：

automatic phase shift; grid-connected photovoltaic inverters; inverters; islanding detection;

D O I：

10.1109/TEC.2002.808412

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：

The traditional frequency-shift methods for islanding detection of grid-connected PV inverters-the active frequency drift method and the slip-mode frequency-shift method-become ineffective under certain paralleled RLC loads. The automatic phase-shift method is proposed in this paper to alleviate this problem. The method is based on the phase shift of the sinusoidal inverter output current. When the utility malfunctions, the phase-shift algorithm keeps the frequency of the inverter terminal voltage deviating until the protection circuit is triggered. Simulation and experiments are performed for verification.

引用

页码：169 / 173

页数：5

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