Title :
Short time Fourier transforms and other transforms applied to the calibration of power analysers
Author_Institution :
Nat. Phys. Lab., Teddington, UK
Abstract :
This paper is concerned with the measurement of nonsinusoidal waveforms, in particular the use of waveform transforms in the calibration of power analyser instruments designed to make harmonic measurements to the requirements of the IEC standards on harmonics. The consequences of harmonics to electricity supply companies and users are considered. The paper then reviews the IEC standards regarding steady-state harmonics and fluctuating harmonics.
Keywords :
IEC standards; calibration; fast Fourier transforms; harmonic analysis; power supply quality; power system harmonics; power system measurement; time-frequency analysis; wave analysers; waveform analysis; wavelet transforms; FFT spectrum; IEC standards on harmonics; Wigner-Ville distribution; calibration; compliance tests; fluctuating harmonics; harmonic measurements; harmonic series; mains supply; nonsinusoidal waveforms; power analysers; regulation of harmonics; short time FT; steady-state harmonics; supply quality; time-frequency distributions; waveform transforms; wavelets; Calibration; Fluctuations; Fourier transforms; Harmonic analysis; Harmonic distortion; IEC standards; Particle measurements; Pollution measurement; Power measurement; Power system harmonics;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699928
