摘要
依据变速恒频无刷双馈风电机组物理构件的特性,从转子参考轴d-q模型出发,推导出基于同步坐标下无刷双馈电机的数学模型,建立了能表征变速恒频无刷双馈风电机组特性的整体模型。根据无刷双馈发电机的特性,设计了一种新型并网无刷双馈变速恒频风力发电机的功率控制系统。该系统采用双闭环控制,内环采用三角波比较的脉宽调制电流跟踪控制,避免了电压补偿环节。仿真结果验证了该文无刷双馈风电机组并网控制策略的可行性和有效性。
According to the characteristics of components of variable-speed constant-frequency （VSCF） wind power generator and using rotor d - q model as a start point, a mathematical model is deduced for brushless doubly-fed machine （BDFM） based on synchronous reference frame. A total model of VSCF brushless doubly-fed wind power generator is established. According to the characteristics of BDFM, a new type of control for brushless doubly-fed variable speed constant frequency （VSCF） wind power generation system connected to grid is developed. The doubly-fed control is adopted in this system, the pulse width modulation current-tracing control is used in the inner ring, and the voltage compensation is avoided. Simulation results verify the availability and validity of the proposed control strategy.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2008年第5期575-580,共6页
Journal of Nanjing University of Science and Technology
基金
江苏省高校自然科学基础研究面上项目(07KJB470034)
关键词
风力发电
无刷双馈电机
同步坐标
并网控制
变速恒频
wind energy generation
brushless doubly-fed wind turbine
synchronous coordinates
control connected to grid
variable speed constant frequency
