摘要
与双馈交流励磁风力发电系统相比,直驱永磁同步风力发电系统具有结构简单、发电效率及运行可靠性高等优点。本文利用电力系统仿真工具PSCAD/EMTDC为基础,建立了1.5MW直驱永磁同步风力发电系统的仿真模型;在低于额定风速下,研究了最佳叶尖速比控制策略下直驱永磁同步风力发电系统的特性,采用空间矢量调制方法实现了风力发电机最大风能跟踪的控制;网侧变换器并网实现了变速恒频和有功功率与无功功率的解耦控制;最后对仿真结果进行分析,验证了控制策略的正确性。
Compare with AC excitation doubly fed wind energy generation system, direct -drive permanent magnet synchronous wind power system has the advantages of simple structure, power efficiency and high reliability. In this paper, a new generation of electric power system simulation software PSCAD/EMTDC was used as the base, simulation model for 1.5 MW PMSG wind power generation system was established; Below the rated wind speed, the characteristics of PMSG wind power generation system under the control strategy of the optimum tip speed ratio was studied, Using space vector modulation method, maximum wind power tracking control was a- chieved ; VSCF and the decoupled control of active power and reactive power of nets side converter grid-connected was also achieved. Finally the simulation result was analyzed; to verify the validity of control strategy.
出处
《微电机》
北大核心
2012年第8期37-41,共5页
Micromotors
基金
2011年教育部新世纪优秀人才支持计划(NCET-11-1018)
教育部科学技术研究重点项目(210037)
内蒙古自然科学基金(2011BS0903)
内蒙古人才开发基金
