FAST EXTRACTION OF POWER FREQUENCY COMPONENT USING WAVELET TRANSFORM

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FAST EXTRACTION OF POWER FREQUENCY COMPONENT USING WAVELET TRANSFORM

更新时间：2025-08-13

- FAST EXTRACTION OF POWER FREQUENCY COMPONENT USING WAVELET TRANSFORM
- Automation of Electric Power Systems Vol. 26, Issue 24, (2002)
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- Published：2002
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[J]. Automation of electric power systems, 2002, 26(24).
DOI：

[J]. Automation of electric power systems, 2002, 26(24). DOI：

摘要

Powerfrequencybased protection schemes are widely used for their maturity and high reliability. However

for the exponentdecaying component

fast and accurate extraction of power frequency component in system fault remains a challenge for such protection employment. The paper proposed a new algorithm to extract power frequency component based on wavelets and sinuousmodelbased algorithm commonly. Using the new algorithm

accurate amplitude and phase of power frequency component can be achieved at approximately 3/4 period after fault. Extensive simulations have verified the algorithm

which yields satisfactory outcome.

Abstract

Powerfrequencybased protection schemes are widely used for their maturity and high reliability. However

for the exponentdecaying component

accurate amplitude and phase of power frequency component can be achieved at approximately 3/4 period after fault. Extensive simulations have verified the algorithm

which yields satisfactory outcome.

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X.Z.DONG

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Related Institution

State Key Lab of Power Systems，Department of Electrical Engineering，Tsinghua University

Wind Power Technology Center，Gansu Electric Power Corporation

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