变速恒频双馈风力发电机系统的研究

Research on the System for Variable-Speed Constant-Frequency Doubly-Fed Wind Power Generator

分析了变速恒频双馈风力发电机系统的结构及工作原理,给出了变速恒频技术在发电机组中实现变速运行的不同方式.通过比较变速工作时的定转子状态,采用控制发电机转子电流的大小来实现双馈异步发电机输出端电压稳定.根据运行数据,总结了变速恒频双馈风力发电机系统的若干优势.

The structure and fundamental principle of variable-speed constant-frequency doubly-fed wind power generator system is analyzed.Different methods about power generator variable-speed run are realized based on variable-speed constant-frequency technology.By the comparison of variable-speed work state of stator and rotator of variable-speed constant-frequency power generator,the generator rotator current control method is adopted to implement output voltage stability of doubly-fed asynchronization power gener...