8Dubois M R. Optimized permanent generator topologies for direct-drive wind turbines [ M ]. The Netherlands: Delft Univ Technology, 2004.
9Hwang Don-Ha, Lee Ki-Chang, Kang Do-hyun, et al. An modular-type axial-flux permanent magnet synchronous generator for gearless wind power systems [ J ]. IEEE Industrial Electronics Society, 2004 (2) : 1396-1399.
10Khan M A, Dosiek L, Pillay P. Design and analysis of a PM wind generator with a soft magnetic composite core[ J]. IEEE International Symposium on Industrial Electronics, 2006 (3) : 2522-2527.
