Paper Title
Repetitive Controller for Power Quality Improvement Using Dynamic Voltage Restorer and Shunt Hybrid Active Power Filters

Abstract
Electricity is the major requirement for the present world. Supplying electricity of good power quality to the consumers has become one of the major task to the power industry. Good quality of power means the power should be of rated voltage and frequency and should be supplied uninterrupted. To improve the power quality supplied to the consumers, Custom Power Devices(CPD’s) are used. In this paper two CPD’s, Dynamic Voltage Restorer (DVR) and Hybrid Active Power Filter (HAPF) are used to improve the power quality. DVR is used to improve the voltage quality and HAPF is used to improve current quality. The controller used is Repetitive controller. The circuits are build using MATLAB SIMULINK environment. Key words- Power Quality(PQ), Custom Power Device (CPD), Dynamic Voltage Restorer (DVR), Hybrid Active Power Filter (HAPF), MATLAB.