Detection of Flicker Caused by Interharmonics Based on the Voltage Envelope Mean FFT

Zu Hua Ren; Bo Lin Wang

doi:10.4028/www.scientific.net/AMM.325-326.879

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 325-326Detection of Flicker Caused by Interharmonics...

Detection of Flicker Caused by Interharmonics Based on the Voltage Envelope Mean FFT

Abstract:

This paper introduces a detection algorithm of flicker caused by interharmonics based on the voltage envelope extraction and analysis. Whether the interharmonic frequency is near the odd or the even harmonics, the envelopes show different characteristics. The envelope mean is calculated accordingly and the relationship between the envelope mean and the flicker signal is analyzed in detail. It concludes that the flicker frequency and amplitude can be obtained accurately through FFT of the envelope mean and amplitude correction. Simulation results verify the algorithm.

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Periodical:

Applied Mechanics and Materials (Volumes 325-326)

Pages:

879-882

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.325-326.879

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Online since:

June 2013

Authors:

Zu Hua Ren, Bo Lin Wang

Keywords:

Amplitude Correction, Envelope Mean, FFT, Flicker, Interharmonics, Voltage Envelopes

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References

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