电力系统保护与控制Issue(22)：117-121,5.
一种光伏并网逆变器孤岛检测新方法
A new method for islanding detection of grid-connected photovoltaic inverter
摘要
Abstract
When the grid fails, two methods are used for the islanding detection, one is the passive detection method and the other one is the active detection method which includes the active frequency drift, sliding mode frequency shift and output power disturbance method, but they all have non-detection zone. For the defects of these methods, this paper puts forward a new active islanding detection method. It identifies the islands through changing the size of the inverter output load with pulsating load, and detecting inverter output voltage and frequency. The theoretical analysis shows that this method is fast and has no effect on the grid, and there are not blind spots. This method also applies to multiple grid-connected PV inverters. Simulation results verify the validity of the method.关键词
光伏逆变/并网/孤岛检测/无源/主动Key words
PV grid inverters/grid-connedted/islanding detection/passive/active分类
信息技术与安全科学引用本文复制引用
殷志锋,张元敏,张振波,罗书克..一种光伏并网逆变器孤岛检测新方法[J].电力系统保护与控制,2013,(22):117-121,5.基金项目
河南省科技攻关（重点）项目 （）
