A fast recovery and disturbance control strategy for MVDC Grid-connected converter

Distributed power and smart grids play a crucial role in the upcoming future power grid system. Sooner, many DC grids will coincide with traditional common AC grids. This study investigate and presents a control scheme for three phase (VSR) Voltage source PWM rectifier among the combination of (SMC) sliding mode control and (PI) proportional integral technique. A control strategy of double closed control system is proposed which consist of inner current loop (SMC) and outside voltage (liner control) loop. During the designing of controller, the conditions of load disturbance, unity P.F under load variation and output DC voltage controlled etc. taken into attention. The simulation results show the effectiveness, feasibility of this system and good dynamics performance of the suggested control system. Which is beneficial for research and development for grid-connected converters.