电力系统基波计算快速算法的实现及应用

提出了一种快速计算电力系统基波分量的方法,即简化的DFT算法,该算法相比FFT降低了对采样点数的要求,相比传统的DFT降低了运算复杂度。结合DSP处理器已将此算法应用于全场景试验系统中,另外,基于此算法还提出了一种校正电压电流幅值精度的方法,并通过实验证明了此方法的有效性。

Fast Algorithm for Calculating Fundamental in Power System

This paper proposes a method to calculate the fundamental component in Power System fast,which is an algorithm of simplified DFT.The algorithm not only reduces the demand for samplingnumber comparing with the FFT, but also reduces the algorithm complexity comparing with the traditional DFT.The algorithm has been applied to the whole-view testing sys- tem combining with the Digital Signal Processor.In addition,a method to calibrate the amplitude of voltage and current signal in accuracy has been proposed based on the algorithm.This method has been proved to be effective by testing.