DESIGN OF MATRIX CONVERTER BASED DYNAMIC VOLTAGE RESTORER FOR POWER QUALITY ENHANCEMENT

A new series power conditioning system using a matrix converter is proposed. The proposed solution has utilized a single AC/AC power converter for interface as an conventional AC/DC/AC converter. The dynamic model is used to design a vector control system that seamlessly integrates functional of compensating load voltage and managing energy storage during voltage sag and idling modes. The purpose of matrix converter used in dynamic voltage restorer (DVR) for power quality enhancement, which is connected in between the feeder to secure the electric power from sags. The DVR is based on dqo algorithm which is discussed with matrix converter to inject external supply into the feeder by means of a series transformer. Harmonics are produced due to non-linear loads, and it is filtered out by a filter which is connected at terminal end of the system. The simulation results are carried out by MATLAB and the performance of proposed method is verified.