变速恒频风力发电系统最大风能跟踪控制的研究

Research on Control Strategy of Maximum power Point Tracking of VSCF Wind Generation

变速恒频机组可以根据风速调整发电机转速以获得更大的风能。本文首先介绍了风轮机的功率特性,然后比较了三种现有的最大风能跟踪控制算法的优缺点。以感应发电机为例,研究了一种用于最大风能跟踪的变步长爬山法,并采用MATLAB软件进行了仿真实验,仿真结果表明了该控制策略的正确性和可行性。

Variable speed constant frequency wind turbines can get the maximum power by adjusting the rotor speed of the induction generator according to the variable wind speed. The power characteristic of wind turbine is introduced in this paper, then advantages and drawbacks of the three types of existing maximum wind power extraction algorithms are compared. For an induction generator as example, a variable step mountain climb algorithm for maximum power point tracking is studied and the wind turbine model is tested by MATLAB simulation. System simulation results have confirmed the functionality and performance of this method.