变速恒频风力发电控制技术

Research on Variable-Speed Constant-Frequency Power Generation System of the Motor

阐述了变速恒频发电技术在风力发电中的优势,简要介绍了国内外几种主要的变速恒频风力发电控制技术,分析了无刷双馈电机、永磁同步发电机的发展及控制策略,最后对变速恒频发电系统的原理进行了总结,为进一步研究提供参考。

This paper introduces system structure and working theory for 5 kinds of variable-speed constant-frequency power generation system,such as squirrel-cage induction generator,wound-rotor doubly-fed generator,brushless doubly-fed generator,permanent magnet synchronous generator and AC excitation doubly-fed generator. Current situation of the permanent magnet synchronous generator,squirrel-cage induction generator and brushless doubly-fed generator is analyzed in detail,advantages and disadvantages of the system are described,and its development tendency is also stated.