双馈型风力发电机无功控制模型参数灵敏度分析

随着风电的不断发展,大规模风电并网后对电网造成的影响也日益明显。双馈风机可以对有功、无功进行解耦控制,具有独立、灵活的无功功率控制能力,因此分析双馈风机在电网发生故障期间的无功响应是研究风电并网后风力发电机对电网电压稳定影响的关键,对双馈风机无功控制部分模型的分析十分重要。为更准确地分析双馈机对电网电压稳定性的影响,对GE双馈型风力发电机模型进行了研究,在PSASP仿真平台上分析了模型中各个参数的灵敏度,提出了仿真的关键参数并解释了这些参数的物理意义。

Sensitivity of Parameters for DFIG Reactive Power Control Model

Along with the large amount of wind power integrated into the power systemt,he impact of grid integration of wind turbine generators is increasingly obvious.DFIG（doubly-fed induction generator） have the ability to control reactive power and decouple active and reactive power control.Therefore the analysis of the reactive response of DFIG is critical to study voltage stability after grid integration of wind power,so it is very important to analyse the re-active power control model of DFIG.For more accurate analysis of DFIG impact on the voltage stability,GE double-fed wind power generator models are studied,and the sensitivity of parameter is analysed in PSASP simulation plat-form.The key parameters of the models are presented and the physical meaning of these parameters are explained.