Short-time Voltage Variance Detection of Micro-grid with Direct-drive Wind Power Generation
Simulation model of micro-grid including a direct-drive wind power generation,two sets of power-controlled distributed generations(DGs)and a three-phase fault module was investigated in Matlab/simulink.Based on the constructed model,the operating process switched from island mode to grid-connected mode was simulated and the voltage variance signal was detected with Daubechies(Db)wavelet.The simulation results show that the singularity of voltage variance was quickly and accurately detected with db wavelet.The fast and accurate detection of short-circuited fault signal is helpful to improve power quality of micro-grid.
Micro-grid wind power generation Db wavelet voltage variance
ZHOU Jian-ping ZHU Jian-ping
School of Automation Engineering,Shanghai University of Electric Power,Shanghai 200090
国际会议
长沙
英文
4507-4511
2014-05-31（万方平台首次上网日期，不代表论文的发表时间）