摘要
基于三相SVPWM高频整流器的数学模型,详细分析了双馈风力发电系统中网侧整流器的双闭环控制原理和单位功率因数的实现方法.在此基础上设计了一套SVPWM整流系统,可以实现整流和逆变状态下的转换,实现能量的双向流动,仿真实验结果表明该整流系统具有良好的动、静态特性.
Based on the mathematical model of three phase PWM high frequency rectifier, the theory of dual -close-loop controller and implementation of unit power factor of the supply-side rectifier in doubly-fed generation system are analyzed. A model of SVPWM rectifier is designed, and it shows the ability of bi-direction power flow and acting as a converter or an inverter with unit power factor. The simulation results show that the designed rectifier has excellent steady-state and dynamic performance.
出处
《兰州交通大学学报》
CAS
2009年第3期74-78,共5页
Journal of Lanzhou Jiaotong University
关键词
风力发电机
双向流动
双闭环
励磁电流
wind generator
bi-direction power flow
dual-close-loop
magnerizing current
