摘要
在分析双馈异步发电机的运行特性及交流励磁电源双PWM变频器基础上,研究基于定子磁场旋转坐标系下的变速恒频风力发电机组电气控制部分的控制策略。同时基于MATLAB软件建立变速恒频双馈风力发电机组的仿真模型,针对提出的控制策略对变速恒频双馈风力发电机组的并网运行特性进行仿真研究。结果表明该控制策略合理,控制器设计有效。
On the basis of analyzing the running characteristics of doubly-fed generator （DFIG）and the AC excitation source back-to-back voltage-fed frequency converter controlled by pulse width modulation （PWM）, the control strategy for electrical control parts of variable-speed constant-frequency （VSCF） based on rotating coordinate system of stator magnetic field was proposed. Simulation model of VSCF was built by MATLAB. The simulation of the interconnected operating characteristics of VSCF under the proposed control strategy was conducted. Simulation results showed that the proposed control strategy is reasonable and the designed controller is effective.
出处
《电力科学与工程》
2008年第4期1-4,共4页
Electric Power Science and Engineering
关键词
变速恒频
双馈发电机
风力发电
励磁变频器
variable-speed constant-frequency
doubly-fed generator
wind power generation
excitation frequency
