摘要
控制技术是风力发电机组安全高效运行的关键,文章在分析变速变桨距风力发电机特性的基础上,针对永磁同步风力发电机,提出了一种综合控制策略,研究了变桨距控制和基于转速外环、电流内环的电机侧矢量控制;并且对描述发电机工作过程的风速模型、空气动力学模型、机械传动模型、发电机模型、控制系统模型等进行了研究,基于Matlab/Simulink搭建了模型,对风速变化时机组运行情况进行了仿真,验证了所建模型的合理性及控制策略的正确性。
Control is one of the keys in high efficient and reliable operation of wind turbine. After analyzing characteristics of variable speed and variable pitch wind turbine, a comprehensive control strategy is presented for permanent magnet synchronous generator, in which variable pitch control and generator-side vector control based on speed-outer loop and current-inner loop are discussed. Models that simulate wind turbine operation such as wind speed mode/,aerodynamic model, shaft system model, PMSG model and controller model are analyzed. Simulation for the case of wind speed change verifies validity of the model and the feasibility of the control strategies.
出处
《可再生能源》
CAS
北大核心
2014年第9期1306-1311,共6页
Renewable Energy Resources
关键词
永磁风力发电机
建模
变桨距控制
转速控制
permanent magnet generator for wind turbine
modeling
pitch control
rotational speed control
