PMSG Type Wind Power Generation System Connected with EDLC in DC-Link

Wind power generation system (WPGS) is the fasest increasing renewable enerngy source techology nowadays. However, output ppower fluctuation of the WPGS due to variation of wind speed casues a problem of low or some high frequency oscillation in power system. Electric double layer capacitor (EDLC) is used to overcome power quality problem caused by output power oscillation of wind turbines. A new connection scheme of EDLC to WPGS is proposed in which the EDLC is directly connected to DC-link of WPGS with permanent magnet synchronous generator. The structure of the proposed system is cost-effective and efficient. The proposed system including an EDLC is modeled and analyzed by PSCAD/EMTDC. The simulation results show the effectiveness and major features of the proposed system.