Abstract

Abstract: In this paper the most effective vector controlscheme is applied for the accurate control on grid side of a grid integratedpower conversion system. Here three-phase AC-DC bidirectional grid side voltage source converter employeesvector control strategy  to assure thatthe dc link voltage follows the reference and controls the flow of active andreactive power . A design procedure for converting 3 phase grid voltages into 2phase stationary reference frame and then transforming into synchronous frameof reference that rotates at grid frequency is explained. A simple algorithmfor unit-vector generation is presented. Matlab simulation has been performedon proposed converter model and Simulink results are presented .

Keywords—grid side converter,vector control, synchronous frame of reference, dqo reference frame, spacevector pulse width modulation, wind energy conversion system.