【摘要】 在以电网电压矢量定向的同步旋转坐标中,通过分析有功功率和无功功率与交流侧电压、电流空间矢量之间的关系,提出基于内环直接电流控制的PWM整流器功率控制方案,根据PWM整流器交流侧电压方程及有功功率传递关系建立PWM整流器功率控制系统数学模型,完成对电流、电压PI调节器参数的整定。仿真结果表明:PWM整流器启动时的直流电压超调量小,响应速度快,具有极佳的动静态性能。更多还原

【Abstract】 Under the source voltage oriented synchronous coordinate,the relations of PWM rectifier active power and reactive power with source voltage and current space vectors were analyzed,and a PWM rectifier power control scheme based on direct current control was proposed.The mathematic model for PWM rectifier power control was established according to the voltage equation and power transmission principle,which was applied to the adjustment of the parameter of both current and voltage PI regulators.The simulation results show that the PWM rectifier has the merits of low overshoot of starting direct voltage,high speed of response and excellent dynamic and static performance.更多还原