重点介绍了目前风电场中所采用的风力发电机组，包括风力机、风力机的功率调节及恒速恒频和变速恒频发电系统。
The main topics mentioned here are about wind turbine, power regulation of wind turbine and induction generator in wind farms with electrical power system.
在变速恒频双馈风电机组中，交流励磁双馈风力发电机的设计和制造技术是十分关键的。
The design and manufacture for MW-class AC-excited doubly-fed generator is very important in the variable speed constant frequency doubly-fed wind power system.
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