变频技术在风电设备中的应用

The Application of Frequency Conversion Technology in Wind Power Equipment

主要围绕变频技术在风电设备中的应用展开研究,以变速恒频双馈风力发电机为研究对象。对发电系统中交流励磁控制方式常见的变频装置进行了比较分析,对选择的双PWM变换器交流励磁变速恒频风力发电系统的两个控制单元——网侧PWM变换器和转子侧PWM变换器进行了控制策略分析及仿真。

This paper focuses on the application of frequency conversion technology in wind power equipment with the variable speed constant frequency doubly fed wind power generator as the research object. The inverter power system commonly in the AC exci- tation control are compared and analyzed. The two control unit-the grid side PWM converter and rotor side PWM converter that selected in the double PWM converter of AC excited VSCF wind power generation system are analyzed and simulated with its control strategy.