LOW COST DESIGN OF A FPGA BASED DYNAMIC VOLTAGE CONTROLLER

Abstract

This paper presents a design of adaptive hysteresis band voltage controller based a dynamic voltage restorer (DVR) with minimum VA loading. The DVR is desirable to have mitigate the typical all voltage problems and improve stability of the system and its controller strategy is opted the adaptive hysteresis band voltage controller technique, to generate accurate injected voltages with optimum injected angle. Hence to mitigate the voltage problems under different considerations. The optimal angle at which series voltage has to be injected so minimum VA loading of DVR is evaluated by particle swarm optimization (PSO) and he results are verified with genetic algorithm (GA).The dynamic model of DVR has been adopted with adaptive hysteresis band voltage control by using MATLAB/Simulink. Experimental studies are carried out on single-phase FPGA based open loop dynamic voltage controller prototype to verify the proposed topology