Improvement of Power Quality by mitigating harmonics in single phase AC distribution

Power Quality in the Distributed network is poor due to heavy use of semiconductor devices like fluorescent lamps, computers, mobile chargers and automatic devices particularly in home and small offices. Harmonics are developed due to these devices which have adverse impacts on power system. Life of the appliance is also decreased due to presence of harmonics in power. Active power filter for single phase distribution network developed for mitigating the harmonics generated. This also improve power factor of the system. The developed active filter consists of a MOSFET inverter. Current is injected at point of common coupling through inductor. This made source current sinusoidal and in phase with source voltage. The validity of the proposed model is confirmed by simulation in mat lab results. In developed model THD dropped from 80% to 20%. The developed active filter can offer reduction in power loss and improve power quality. Hardware is buildup for the same with load up to 1 KW and tested with personnel computers and results verified on power analyzer.