The method for reducing starting resistant moment by suitable top rake of magnetic pole in Permanent Magnet Generator driven by wind turbine

The 2-D transient field model of Interior permanent magnet generator (IPMG) which is driven by wind turbine is set up and analyzed by the software of Ansoft. As a result, with the size of top rake of magnetic pole changing, the variation of starting resistant moment is obtained. Consequently, theoretic reference for minimization of starting resistant moment of IPMG is offered.

[1]  Nicola Bianchi,et al.  Design techniques for reducing the cogging torque in surface-mounted PM motors , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[2]  D. Howe,et al.  Analytical prediction of the cogging torque in radial-field permanent magnet brushless motors , 1992 .

[3]  T. Miller,et al.  Prediction of cogging torque using the flux-MMF diagram technique , 1995, IAS '95. Conference Record of the 1995 IEEE Industry Applications Conference Thirtieth IAS Annual Meeting.

[4]  V. S. Ramsden,et al.  A low speed, high-torque, direct-drive permanent magnet generator for wind turbines , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[5]  Gyu-Hong Kang,et al.  Analytical prediction and reduction of the cogging torque in interior permanent magnet motor , 2005, IEEE International Conference on Electric Machines and Drives, 2005..