Electromagnetic Field Simulation of MW Permanent Synchronous Wind Power Generator

Based on the method of equivalent circuit and generator magnetic circuit,the model of MW large permanent magnet synchronous generator was established by finite element analysis software Ansoft RMxprt module.The transient magnetic field of the generator was calculated using Maxwell 2D transient solver with the basic assumptions and boundary conditions given.The figs of flux density wave,magnetic line of force distribution of major parts and nephogram of magnetic field were simulated in rated state.The method can accurately and effectively reflect a wind turbine operation process of magnetic field distribution,which have reference value for the design of large wind generator and fault diagnosis.