不同异步风力发电机组的低电压穿越能力研究

为了对比不同异步风力发电机组的低电压穿越能力,给出了包括风速模型、风力机模型和异步风力发电机模型在内的风电机组模型和无功补偿装置(SVC)模型。建立了仿真风电场模型,分别仿真了两种典型异步风力发电机组未加装SVC和加装SVC时发生短路故障后的低电压穿越能力;针对仿真前后电压、有功功率、无功功率和转速的变化情况对两种异步风力发电机组的低电压穿越能力进行了对比分析。

Research on Low Voltage Ride-through Capability of Different Asynchronous Wind Turbine-generator Systems

To compare the low voltage ride-through capability of different induction wind turbine-generator system(WTGS),the WTGS model and the reactive power compensation devices(SVC) model are firstly given,which including wind model,wind turbine model and asynchronous generator model.Then the wind farm simulation model is established to simulate the low voltage ride-through capabilities of two typical asynchronous WTGSs after a short-circuit fault under the conditions of installing and no installing SVC respectively.The low voltage ride-through capabilities of two typical asynchronous WTGSs are compared from the final voltage,active power,reactive power and speed before and after simulation.