摘要
建立了以永磁同步发电机(PMSG)为对象的变速恒频风力发电系统,推导了d-q坐标系下PMSG的数学模型,提出了风力发电系统中的功率控制、转速控制与最大功率追踪(MPPT)算法以及双PWM电能变换器的控制策略。同时,搭建了该系统的仿真模型,对风速阶跃变化时机组运行情况,进行了仿真,结果验证了最大功率追踪控制的有效性。
In this paper, this dissertation designed the work principle for the wind power system based on the PMSG and the framework for the system, induced the PMSG mathematic model in the d-q coordinates, and put up the control strategy for the whole system, including the vector control of the PMSG, the realization of the maximum power point tracing （MPPT） method, the control strategy for the back-to-back PWM converter, etc. Then, the dissertation built the simulation model for the wind power system based on the PMSG using the Matlab/Simulink software. The control strategies mentioned in the above are simulated, and simulation results are obtained respectively in the condition of different wind speed. The simulation results show the schemes are reasonable and practical.
出处
《水力发电》
北大核心
2008年第5期100-103,共4页
Water Power
基金
国家自然科学基金资助项目(50667002)
关键词
变速恒频
风力发电
永磁同步发电机
矢量控制
最大功率追踪
variable speed and constant frequency
wind power generation system
the permanent magnetic synchronousgenerator（PMSG）
vector control
maximum power point tracing（MPPT）
