Research on Low Voltage Crossing Technology of Wind Power Generation System
With the rapid improvement of wind power traverse technology in China,low voltage traverse has attracted much attention as a hot spot in the power industry.According to the low voltage crossing standard of the State grid,this paper expounds the low voltage crossing requirements of wind power equipment,analyzes the dynamic characteristics of DFIG when the grid voltage plunts,introduces the layout design of the hardware,combines DBR,Crowbar and rotor current continuous diode,and simulates the low crossing control algorithm of the main control system and the converter on the grid side and the machine side.The simulation results show that the low voltage crossing strategy can effectively guarantee the continuous and stable operation of power grid.
wind power generationwind power generation systemlow voltage ride through technology
NETL
NSTL
万方数据
