This paper introduces firstly the configuration and operation principle of double close-loop controlled voltage source inverter, then deduces the expression of equivalent output impedance of the inverter through its close-loop transfer function, and finally analyzes the impacts of the proportional and integral coefficients in voltage regulator.
介绍了双闭环控制电压源逆变器的结构和工作原理,利用其闭环传递函数求解出了逆变器等效输出阻抗的表达式,分析了电压外环比例系数、积分系数和电流内环等效放大倍数对逆变器外特性的影响。