Effects of HPS Lamps on Power Quality Lighting Network

High pressure discharge lamps (HID) are widely used thanks to their qualities. But HID lamps cause the deformation of the line current and the degradation of the public network power quality. The objective of this paper is to study the harmonic distortion in view of a micro lighting network. More specifically, the tested 250W HPS lamps, with magnetic ballast, are evaluated and provided with the adequate compensation. The interesting features of the adopted filtering method are performance, predictability and reliability to reduce the harmonic distortion problem, the operating and design of the compensator parallel active filter “PAF” are presented. The obtained results by this parallel active filter satisfy both the harmonic distortion correction and the power factor compensation, a good improvement in the stability and precision of the signal waveform and in power quality are presented. The current and voltage waveforms THD are studied.