Main Article Content
Abstract
This paper proposes Design and analysis of ANN based unified power quality controller (UPQC) for power quality improvement. The UPQC is the combination of shunt and series APF. The series APFs are used to compensate voltage related problems and the shunt APFs are used to compensate current related problems. The unified power quality conditioner (UPQC) integrates both shunt and series APFs through a common DC link capacitor. The UPFC is employed in power transmission system, and the primary objective of UPFC is to control the flow of power at, fundamental frequency. Whereas the UPQC is employed in a power transmission system. It controls distortion due to harmonics and unbalance in voltage in addition to control of flow of power at the fundamental frequency. In this work, the conventional controller has been replaced by an ANN (Artifical Nural Network). The ANN has been used in APFs in place of conventional controller for improving the dynamic performance. The results obtained through the ANN are good in terms of dynamic response. Simulations are verified by using of MATLAB/Simulink.