LVRT Enhancement in Grid Connected DFIG Based Wind Turbine Using PSO Optimized DVR

This paper suggest a control strategy to enhance the LVRT capability of doubly fed induction generator (DFIG) based wind turbine system using dynamic voltage restorer (DVR). Wind should support grid during fault time. The method used here is series compensation at point common coupling on occurrence maintain stator constant. performance improved by optimization PI parameters particle swarm as compare conventional DVR. controller regulate IGBT pulses inverter DC source. To validate performance, 9 MW integrated DFIG plant considered. result shows that sag greatly with PSO optimized