Design analysis of direct-driven PMSG in wind turbine application

This paper focuses on design analysis issues of direct driven permanent magnet synchronous generator (DDPMSG) which are widely used in large scale wind turbines. The permanent magnet synchronous generator (PMSG) of 1.5 MW output power which is driven directly without gear system is analyzed by Maxwell 2D RMxprt. The characteristics of generator include the cogging torque, induced coil voltages at rated speed, airgap flux density distribution and so on. For analysis of an electrical machine, accurate prediction of the machine parameters is crucial. A particular interest for permanent magnet generator is connected with wind turbine, which seems to be becoming increasing popular nowadays. The results show a proper performance of PMSG for analysis of an electrical machine in wind turbine application.