An Improved Algorithm of Real-time Detection of Voltage Fluctuation and Flicker
Voltage flicker measurement method recommended by IEC for the square of the demodulated signal can produce a series of problems,such as: generating signals and demodulation frequency interference,voltage flicker signal with the peak pulse,white noise,high frequency noise and so on.This paper describes the voltage fluctuation and flicker detection methods,brings forward an improved coherent detection method with a mathematical morphology (MM) filter algorithm involved.Simulation results show that the MM-coherent detection algorithm can eliminate the harmonic,inter-modulation interference and the noise more effectively,achieves better accuracy,and exhibits wide application prospects.
Voltage fluctuation:flicker:square demodulation digital synchronous carrier:mathematical morphology filter
Yuanyuan Xu Yonghai Xu Yiquan Zhang
School of Electrical and Electronic Engineering North China Electric Power University Beijing,China
国际会议
威海
英文
601-605
2011-07-06（万方平台首次上网日期，不代表论文的发表时间）