直驱式风电系统低电压穿越建模与仿真

采用1500kW风力发电机组，基于直驱式风力发电机运行特性及最大风能跟踪原理，在Matlab／Simulink仿真环境下建立了直驱式风电系统低电压穿越的仿真模型，通过接入不同的阻抗，进而产生不同的电压跌落，对其在风电机出口发生三相短路故障时，电压跌落50％进行低电压穿越仿真，结果显示在进行电压跌落过程中风机能够保证稳定运行，验证了模型的合理性。

Modeling and Simulation of Low Voltage Ride Through for Direct-Drive Wind Power System

This paper utilizes 1500kW wind turbines, based on direct drive wind generator operating characteristics and maximum wind energy tracking principle, modeling of low voltage ride through for direct-drive wind power system was built in Matlab/ Simulink software environment, and access to different impedance, producing different voltage drop, three-phase short-circuit fault occurs in wind turbine export, Simulation of low voltage ride through when the voltage drops by 50% ,The results show the system to ensure the stable operation during voltage dips process, verifies the rationality of the model.