随着永磁同步发电机的出现，以及对风力发电系统在风速幅值多变且变化反复并伴随着无周期和高频率的风场中的最大功率追踪理论、功率平滑优化理论、整流器及逆变器控制理论的研究取得了重大突破，这些使关于直驱式永磁同步风力发电系统的研究成为了风力发电领域的主流。 论文以永磁同步风力发电系统的最大功率追踪，永磁风力发电系统功率环优化算法的改进，风电系统整流器和逆变器的电流环和电压环控制器算法的改进优化作为主要研究内容。其中，以模糊移动指数平均算法作为基础，引入了改进型移动指数平均算法作为永磁同步风电系统捕获的风能理论值的计算方法，实现永磁同步风力发电系统的功率优化。将空间矢量合成算法作为三相电压型PWM整流器和逆变器的主要控制算法，引入了以分数阶PI控制器作为控制永磁同步风力发电系统变流器的主要控制器，实现永磁同步风电系统的整流和逆变。 通过在MATLAB/SIMULINK仿真平台上分别搭建最大功率追踪系统模型，功率优化系统模型，整流器控制系统和逆变器控制系统模型。然后对比分析了永磁同步风力发电系统的最大功率追踪的功率波形，功率优化的功率波形，整流器控制系统和逆变器控制系统输入和输出的电压电流波形。最后在永磁同步风力发电系统实验平台上进行了风电实验，采集分析了风力发电系统整流器输入和输出的电流电压波形，逆变器输入和输出的电压电流波形，最后充分验证了永磁同步风力发电系统的功率控制理论及其变流器的控制原理。

The controlling theory and technique of direct driven permanent magnet synchronous wind power generation system based fixed pitch is matured with the great development of manufacturing technology and electric control theory particularly the maximum power point tracking mppt; maximum power point tracking technique, the power smoothing technique and converter control technique of direct drive permanent magnet synchronous wind power generation system in the wind field that the wind velocity is variable and irregular even with high variance ratio get great advances. And the research of theory and technology of mechanical manufacturing and theory and technology of electrical control of direct driven permanent magnet synchronous wind power generator what has large capacity get big break. Using the calculation of power optimization and the controlling strategy converter of direct driven permanent magnet synchronous wind power generation system be emphases of this thesis. The main contents of the thesis are that use modified EMA calculation be the solution of the power reference of direct driven permanent magnet synchronous wind generator. Using Frictional PI controller to be main controller of converter controlling system of direct driven permanent magnet synchronous wind power generation system. Building the models of direct driven permanent magnet synchronous wind power generation system based the modified EMA power optimization and the direct driven permanent magnet synchronous wind power generation system with using frictional PI controller to be main controller of the converter controlling system with using MATLAB/SILUNK. Then make some analyses about the waves of those models. At last, using experiment machine of wind power system to collect waves what are voltage and current of rectifier input port of direct driven permanent magnet synchronous wind power generation system ; the directed voltage of rectifier out port; the voltage of current in converter out port of direct driven permanent magnet synchronous wind power generation system. And make the steady proves of the power controlling theory and the converter controlling theory about direct driven permanent magnet synchronous wind power generation system and make conclusions.