Detection of voltage envelope using prony analysis-Hilbert transform method

被引：43

作者：

Feilat, E. A. ^{[1
]}

机构：

[1] Yarmouk Univ, Elect Power Engn Dept, Hijjawi Fac Engn Technol, Irbid 21163, Jordan

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2006年 / 21卷 / 04期

关键词：

digital signal processing; flicker; Hilbert transform (HT); interharmonics; power quality; Prony analysis (PA);

D O I：

10.1109/TPWRD.2006.881983

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents an efficient method for the detection of the instantaneous flicker level. The technique is based on extracting the magnitudes, frequencies, and phase angles of all frequency components of the voltage envelope using Prony analysis. By reconstructing the voltage waveform as linear combination of sinusoids, Hilbert transform can be applied to the predicted signal to develop the envelope of the voltage waveform. Two cases of flicker with single low frequency and wide band frequency inter-harmonics are investigated using simulated voltage signals. Simulations results are discussed.

引用

页码：2091 / 2093

页数：3

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