An Improved Fourier Algorithm for Elimination of Decaying Aperiodic Component

Xiaoling Yang, Zhan Li
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Abstract

This paper presents an improved fourier algorithm which is free of the effect by decaying dc component. Simulation results indicate that the new algorithm can effectively inhibit the decaying am periodic components in power system transient state. The new method can be used in power system relay protection to calculate the amplitude and phase angle of each harmonic component.
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一种用于消除衰减非周期分量的改进傅立叶算法
本文提出了一种改进的傅里叶算法,该算法不受直流分量衰减的影响。仿真结果表明,该算法能有效抑制电力系统暂态中衰减的am周期分量。该方法可用于电力系统继电保护中计算各谐波分量的幅值和相位角。
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