中文摘要：

在介绍风力发电国内外发展与研究现状的基础上，针对直驱式永磁同步风力发电机组，分析其功率变换器的3种基本拓扑结构及其工作原理、使用条件和存在的问题。详细介绍了风力发电电动变桨驱动器的控制方法，并讨论了风力发电技术对电梯驱动技术发展的启示。

英文摘要：

Based on the present situation of the development of wind power at home and abroad, power converter＇s three basic topology and the basic working principle, using conditions and existing problems for direct driving type permanent magnet synchronous wind power generators are analyzed. The control method of wind power electric pitch system is detailed introduced. The enlightenment of wind power technology to the elevator drive technology is discussed.