摘要
本文提出一种利用半波富氏算法消除衰减非周期分量对基波分量影响的快速算法 ,新算法的数据窗是半个周期的采样值加两个采样点 ,而其滤波效果远远优于半波富氏算法。该算法理论上可以完全消除任意衰减时间常数 τ的非周期分量对基波分量的影响。通过大量的仿真试验表明 ,新算法具有滤除衰减非周期分量能力强、计算简单、速度快等优点。具有实际应用价值。
This article introduces a kind of fast algorithm used half-cycle Fourier algorithm to eliminate decreasing exponential DC component. Its data window is a half cycle of this algorithm is much better than that from the half-cycle Fourier algorithm.With the algorithm the influence of an exponential DC component on the fundamental wave component of random decreasing time consent τ can be completely eliminated.A lot of simulations proves that the new algorithm has advantages of efficiency to decrease the exponential DC component、simple calculating、fast velocity. All of the above shows that the algorithm presented in this paper are of value in practical.
出处
《电力系统及其自动化学报》
CSCD
2000年第1期24-27,共4页
Proceedings of the CSU-EPSA
关键词
微机保护
电力系统
算法
采样值
交流信号
microprocessor protection, decaying DC component, half-cycle fourier algorithm, fast algorithm
