中文摘要：

针对三相电压型PWM整流器本身的非线性特点,提出一种非线性控制策略.采用自抗扰控制技术设计了电压和电流控制器,具有鲁棒性强的特点.通过电压控制器对负载扰动进行补偿,消除了负载扰动带来的输出直流电压稳态跟踪误差.三相电压型PWM整流器的开关信号利用空间矢量脉宽调制方法生成.仿真结果表明,本文所提控制策略是有效的.

英文摘要：

Based on the nonlinear characteristic of three-phase voltage source PWM rectifiers,a nonlinear control strat-egy is proposed.The voltage and current controllers are designed by using active disturbance rejection control（ADRC） technique,and then,the controllers have the advantage of robustness.The load disturbance is compensated by the voltage controller,which effectively removes the static tracking error of the output direct current（DC） voltage,which is caused by the disturbance.The switching signals of the three-phase voltage source PWM rectifiers are generated by space vector pulse width modulation（PWM） method.Simulation results show the effectiveness of the presented control strategy.