小型风电系统功率控制算法的研究

Research on Power Control Algorithm of Small Wind-power Generation Systems

最大功率追踪(MPPT)控制策略是提高风力系统功率转换效率的重要方法。在研究了爬山算法和变步长算法的原理后,提出了固定步长和变步长相结合的3点比较算法,并在Matlab仿真环境中,构建3种算法的仿真模块,进行计算机仿真。对3种算法的仿真结果进行了分析比较,研究其各自在功率损失、响应速度、稳定性等方面的特性,对各种特性进行深入研究,通过对结果的量化对比分析,得到各种算法的优缺点和不同的适用环境。

The control strategy of The Maximum Power Point Tracking（MPPT） is an important method to improve the efficiency of wind power conversion system.The principle of climbing algorithm and variable step algorithm were researched,a three-point comparison algorithm was constructed which mixed with fixed and variable step algorithm,and at the Matlab simulation environment,constructed the three algorithm simulation modules,for a computer simulation.The simulation results of the three algorithms were analyzed and compared,studied their features on power loss,speed of response,stability,etc.In-depth studied of a variety of features,through quantitative comparative analysis,explained the causes of the phenomenons,get relative merits of each algorithm and their different applicable environments.