Abstract
This paper discusses the design and development of Dynamic Voltage Restorer (DVR) controller for voltage unbalanced compensation using d-q-o transformation technique. The controller in d-q-o coordinates has better performance than conventional controllers. The controlled variables in d-q-o coordinates are then inversely transformed to the original voltages which produced reference voltages to a DVR. The performance of proposed control algorithm has been simulated by MATLAB/SIMULINK SimPower System Toolbox. A prototype has been developed in order to validate the effectiveness of the proposed control solution. Simulation and experimental results are presented for various conditions of disturbances in the network included unbalance voltage in the supply voltage to show the compensation effectiveness.
