Measurement of apparent power components in the frequency domain

Author

Asquerino, Juan C Montano ; Castilla Ibanez, M. ; Ojeda, Antonio L. ; Benitez, Jaime G.

Author_Institution

Inst. de Recursos Naturales, Sevilla, Spain

Volume

39

Issue

4

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

583

Lastpage

587

Abstract

An algorithm and a digital signal-processing technique are proposed for the measurement of the apparent power components in the frequency-domain approach. The discrete Fourier transform (DFT) is applied to simultaneous samples of voltage and current waveforms to compare their respective spectra. The RMS values of the harmonic currents flowing between the source and the load (resistive, reactive, and generated by the load nonlinearity) are calculated. The algorithm evaluates V_RMS, I_RMS and the active power in both the time and frequency domains, and the resistive, reactive, and complementary power components in the frequency domain

Keywords

Fourier analysis; computerised instrumentation; computerised signal processing; digital simulation; fast Fourier transforms; frequency-domain analysis; harmonic analysis; power engineering computing; power measurement; RMS; active power; apparent power components; current waveforms; digital signal-processing; digital simulation; discrete Fourier transform; frequency domain; harmonic currents; load nonlinearity; voltage waveform; Current measurement; Digital signal processing; Discrete Fourier transforms; Frequency domain analysis; Frequency measurement; Power measurement; Power system harmonics; Reactive power; Signal processing algorithms; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.57237

Filename

57237