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This paper focuses on the low-computation harmonic-analysis procedure with sufficient suppression of spectral leakage and picket-fence effect. The interpolated FFT algorithm based on the minimized sidelobe window is considered, and its calculate procedure and formulas are given, which is free of solving high-order equations. The implementation of the proposed algorithm in the digital-signal-processor (DSP) based three-phase harmonic ammeter is also introduced. The proposed algorithm has the major advantages that the calculate formulas for harmonic parameters can be easily implemented by hardware multipliers, making the method a good choice for real-time applications. The simulation and application results validate the accuracy and efficiency of the proposed algorithm.
Published in:
Power Electronics, IEEE Transactions on
(Volume:26
,
Issue:
9
)
Date of Publication: Sept. 2011
- Page(s):
- 2570 - 2579
- ISSN :
- 0885-8993
- INSPEC Accession Number:
- 12241548
- Digital Object Identifier :
- 10.1109/TPEL.2011.2111388
- Product Type:
- Journals & Magazines
- Date of Publication :
- 04 February 2011
- Date of Current Version :
- 19 September 2011
- Issue Date :
- Sept. 2011
- Sponsored by :
- IEEE Power Electronics Society
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