Improvement of Power Quality by using Injection Super Capacitor UPQC for BLDC Motor

This paper presents the operation of unified power quality conditioner (UPQC) as a universal active power conditioning device to mitigate both current as well as voltage distortions at a distribution end of power system network. The UPQC is designed by combining a series active power filter and shunt active power filter which shares a common DC link capacitor and series active filter mitigate the voltage related harmonics in power supply side and shunt active filters are mitigate the current related harmonics of non linear loads. UPQC mitigate the harmonics and other harmonic sensitive loads. Among from them unified power quality conditioner was widely studied by different controllers and we applied to BLDC motor for updating of load characteristics that improve the power quality in distribution side.