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A Novel Non-Synchronous Sampling Method for HarmonicInterharmonic Measurement sn Power Systems


Authors



Abstract

A novel non-synchronous sampling method for harmonicinterharmonic measurement in power system is proposed. The method consists of two main steps. In the first step, the leakage effect of DFT is reduced through transfom’s on the consecutive points of DFT. In the second step, the amplitude, frequency and phase angle of the harmonics are calculated through the corresponding interpolation methods. Compared to the commonly used windowed DFT method, the proposed method does not need the construction and storage of window functions. Therefore, it simplifies the implementation and improves the precision of harmonic measurement. The performance of the novel method is compared with DFT interpolation methods and windowed DFT interpolation method through simulation experiments.


Keywords


Pages

Total Pages: 10
Pages: 491-500

DOI
10.1080/10798587.2012.10643259


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Published

Volume: 18
Issue: 5
Year: 2012

Cite this document


References

A. V. Oppenheim, R. W. Schafer, “Digital signal processing”, Prentice Hall Inc. 1975.

L. R. Rabiner, B. Gold, “Theory and Application of Digital Signal Processing”, Prentice Hall, Inc., Englewood Cliffs, N.J., 1975.

JOURNAL INFORMATION


ISSN PRINT: 1079-8587
ISSN ONLINE: 2326-005X
DOI PREFIX: 10.31209
10.1080/10798587 with T&F
IMPACT FACTOR: 0.652 (2017/2018)
Journal: 1995-Present




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