engleski

Determination of specific electricity consumers which have great impact on harmonic distortion of voltage waveform

New technology era is based on electronic devices which increase proportion of nonlinear characteristics in total distribution power system load. So, it is expected to appear increment of true harmonic distortion (THD) of voltage waveform, what is one of main power quality parameters. Electricity supply companies have obligations to control and maintenance these parameters within allowed boundaries according to en 50160. The most important steps of inspection of THD are based on measurements in real network in order to lookout and recognize specific consumers' which are responsible for power quality reduction on their connection points to network. Although these consumers' are large sources of THD, usually they even don’ t know about their impact ; and sometimes they require better power parameters from electricity supply company. Here, a new procedure is proposed for determination of each consumer impact on THD of voltage waveform.

Nonlinear load; True harmonic distortion; Waveform; Inspection; Power quality

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