基于Matlab/Simulink的双馈感应风力发电机组建模和仿真研究

以双馈风力发电机组为研究对象,建立了包括风力机、传动部分、双馈感应发电机、定子磁链定向的矢量控制策略、最大风能捕获策略的整体数学模型;应用matlab软件中simulink工具,以建立的数学模型为基础搭建了双馈风力发电机组仿真模型,并以两次阶跃风速为例对所建模型并网后运行特性进行了仿真研究。实现了双馈风力发电机组的最大风能捕获和功率解耦控制,仿真结果表明,双馈风力发电机组具有良好的运行特性,同时验证了所建模型的正确性和有效性。

System Based on Matlab/Simulink

Targeting the doubly-fed wind power system, this paper establishes the overall mathematical model composed of wind turbine, drive system, double-fed induction generator, stator flux orientation vector control tactics, maximum power point tracking tactics. By applying the simulink in the matlad software, and based on the mathematical model mentioned above, the paper also sets up a double-fed wind power system simulation model, and taking two step-up wind speeds as examples, simulation studies are made on the dynamic characteristics of the model with the grid connected. The simulation studies show that the model realizes the maximum power point tracking and decoupling control of power, and the double-fed wind power system has satisfactory dynamic characteristics, thus proving that the model established is correct and valid.