电压型逆变器输出电压检测与数字滤波方法研究

Study on output voltage detection and digital filtration method of voltage source inverter

针对实时、准确地检测电压型逆变器输出电压基波比较困难的问题，从检测逆变器的直流支撑电压入手，提出了一种根据控制器的输出脉冲序列，利用ＤＳＰ进行实时计算逆变器输出电压基波瞬时输出值的新方案，试验结果证明了方案的可行性。

Seeing that it is rather difficult to detect the fundamental voltage output of voltage source inverter precisely and by real time,starting with DC supporting voltage,the author airs a new proposal to perform real time calculation of the transient fundamental voltage output by means of DSP according to an output pulse sequence of controller.The test results prove that the proposal is feasible.