Active Power Measurement Based on Multiwavelet Transforms | Zendy

Xiaobing Zhang | Zendy; Yunhui Li | Zendy; Xiao-Meng Cui | Zendy

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Active Power Measurement Based on Multiwavelet Transforms

Author(s) -

Xiaobing Zhang,

Yunhui Li,

Xiao-Meng Cui

Publication year - 2014

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2014/905108

Subject(s) - waveform , wavelet , fourier transform , power (physics) , time domain , wavelet transform , voltage , domain (mathematical analysis) , algorithm , computer science , mathematics , electronic engineering , artificial intelligence , engineering , electrical engineering , mathematical analysis , physics , computer vision , quantum mechanics

This paper discusses a new method for calculating active power in the multiwavelet domain. When the voltage and current waveforms are analyzed using multiwavelet, the active power can be calculated by simply adding the products of the multiwavelet coefficients without having to reconstruct the signals back to the time domain first and then using the traditional integration. From the simulation result, we can see that the results using multiwavelet are better than the ones using wavelet and Fourier Transforms no matter which prefilter is used

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