Journal
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Volume 58, Issue 10, Pages 3666-3677Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIM.2009.2019308
Keywords
Digital signal processors (DSPs); Fourier transforms; measurement standards; power quality; spectral analysis
Funding
- Ministry of Sciences and Higher Education, Poland [R01 027 03]
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This paper discusses various methods of calculating coefficients in Fourier series. In particular, the methods recommended in IEC Standard 61000-4-7 and the methods applied in commercial power quality analyzers were investigated. The analysis was carried out for a simulated signal and based on the real voltage registered in an isolated electric power system. It consists of uncertainty evaluation and computational complexity assessment. In the latter case, a digital signal processor simulator and software developed by the author were used. Finally, suggestions for constructors of future power quality analyzers were formulated.
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