Research on Islanding Detection Technology for Multi Grid-Connected Inverters
Multi grid-connected inverters islanding detection methods include two categories: passive islanding detection and active islanding detection.Firstly,an active islanding detection method based on negative sequence current disturbance is analyzed.Aiming at the shortcomings of this method,a novel passive islanding detection method is proposed in this paper.The proposed islanding detection method uses wavelet transform to extract signal features,and then according to the extracted signal features adopts the neural network to judge whether or not the islanding occurs.The simulation results show that the passive multi grid-connected inverters islanding detection method has good islanding detection performance,and does not affect the stability and power quality of the system.
inverter islanding detection negative sequence current wavelet transform neural network
Dong Xie Dajin Zang Peng Gao Minmin Xiang Lu Yang
College of Electrical Engineering,Tongling University,Tongling,China
国际会议
重庆
英文
2505-2508
2017-03-25（万方平台首次上网日期，不代表论文的发表时间）