Title :
New signal processing tools applied to power quality analysis
Author :
Poisson, O. ; Rioual, P. ; Meunier, M.
Author_Institution :
Direction des Etudes et Recherches, Electr. de France, Clamart, France
fDate :
4/1/1999 12:00:00 AM
Abstract :
This paper deals with the comparison of new signal processing tools for power quality analysis. Three new signal processing techniques are considered: the continuous wavelet transform, the multiresolution analysis and the quadratic transform. Their theoretical behaviours are investigated using the basic theory of the Fourier transform. Then, examples of the four most frequent disturbances met in the power system are chosen. Finally, each kind of electrical disturbance is analyzed with example representing each tool. A qualitative comparison of results shows the advantages and drawbacks of each new signal processing technique applied to voltage disturbance analysis. The continuous wavelet transform appears to be a reliable method for detecting and measuring voltage sags, flicker and transients in power quality analysis
Keywords :
Fourier transforms; power supply quality; signal processing; voltage measurement; wavelet transforms; Fourier transform; continuous wavelet transform; electrical disturbance; flicker detection; flicker measurement; multiresolution analysis; power quality analysis; quadratic transform; signal processing tools; transients detection; transients measurement; voltage disturbance analysis; voltage sags detection; voltage sags measurement; Continuous wavelet transforms; Fourier transforms; Multiresolution analysis; Power quality; Power system analysis computing; Power system reliability; Signal analysis; Signal processing; Wavelet analysis; Wavelet transforms;
Journal_Title :
Power Delivery, IEEE Transactions on
