• Prof. Buddhapriy B. Gopnarayan
• Prof. Vipashyana.P.Athawale

Power system load equipment, such as power electronic devices and microprocessor-based systems widely used in modern industries, it’s more sensitive to power quality variations than equipment applied in the past. The quality of electricity supplies, therefore, has become a major concern of electric utilities and end-users. Until now, considerable efforts have been focused on this area, for instance, assessing impacts brought about by deterioration of power quality, monitoring variant disturbances occurring in transmission and distribution networks, and seeking measures for power service improvement. The main causes of a poor power quality are harmonic currents, poor power factor, supply-voltage variations, etc. A technique of achieving both active current distortion compensation, power factor correction and also mitigating the supply-voltage variation at the load side, is compensated by unique device of UPQC and a modified synchronous-reference frame (SRF)-based control method to Shunt active filter and instantaneous PQ (IPQ) theory based control technique for series active filter to compensate power-quality (PQ) problems through a three-phase four-wire unified PQ conditioner (UPQC) under unbalanced and distorted load conditions. The proposed UPQC system can improve the power quality at the point of common coupling on power distribution systems under unbalanced and distorted load conditions. The simulation results based on MATLAB.

Unified Power Quality Conditioner (UPQC), Active power filter (APF), Harmonics.

"Generalized unified power quality conditioner under distorted and unbalanced load condition with improved control method", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.218-221, April-2019, Available :http://www.jetir.org/papers/JETIRBD06043.pdf

"Generalized unified power quality conditioner under distorted and unbalanced load condition with improved control method", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp218-221, April-2019, Available at : http://www.jetir.org/papers/JETIRBD06043.pdf