PMSG Wind Turbine Performance Analysis During Short Circuit Faults

Due to the increasing price of fossil fuels and the security concerns of the nuclear energy, electricity generation using wind turbines has recently attracted significant attention after a period of neglect. Among different types of wind turbine generators, PM synchronous generators (PMSG) offer better performance due to higher efficiency and less maintenance since they do not have rotor current and could be used without a gear box. In addition, the utilization of a double conversion results in higher flexibility compared with other wind turbine systems. This paper develops the model of a PMSG wind turbine and then simulates short circuits to evaluate the performance of the system during short circuit fault. Since PMSG wind turbine systems use a double conversion converter, this paper develops two methods for controlling the converter, a new protection method for capacitor over voltage is also evaluated in this paper.