9CHEN J,NAYAR C V,XU L.Design and finite-element analysis of an outer-rotor permanent-magnet generator for directly couple wind turbines[J].IEEE Transactions on Magnetics,2000,36 (5):3802-3809.
10XYPTERAS J,HATZIATHANASSIOU V.Thermal analysis of an electrical machine taking into account the iron losses and the deep-bar effect[J].IEEE Transactions on Energy Conversion,1999,14(4):996-1003.