DEFINITION AND MEASUREMENT OF A NEW ELECTRICAL POWER QUALITY INDEX FOR POWER SYSTEM MANAGEMENT PURPOSES
G. Andria, G. Cavone
Abstract:
This work deals with the purpose of a new measurement methodology and a new qualità index to evaluate quality of the signal, particularly of electrical ones, valid also when these signal are non-stationary. A new quality index, named Wavelet Harmonic Distortion (WHD), is here suggested, taking origin from the theory of the Wavelet Transform, very useful to on-line evaluate the well-known Total Harmonic Distortion (THD) of the voltage and current signals relevant to power systems.
Keywords:
Power Systems, Measurement Systems, Wavelet Transform, Harmonic Distortion, Quality Indices, Electrical Power Quality
