Reducing cogging torque of 6/4 pole FSPM machine by optimising parameters of chamfering and flange rotor pole shape without skewing teeth | Zendy

Xiu Jie | Zendy; Wang Shiyu | Zendy; Xiu Yan | Zendy

Open Access

Reducing cogging torque of 6/4 pole FSPM machine by optimising parameters of chamfering and flange rotor pole shape without skewing teeth

Author(s) -

Xiu Jie,

Wang Shiyu,

Xiu Yan

Publication year - 2019

Publication title -

iet electric power applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.815

H-Index - 97

eISSN - 1751-8679

pISSN - 1751-8660

DOI - 10.1049/iet-epa.2018.5435

Subject(s) - cogging torque , rotor (electric) , control theory (sociology) , flange , torque , computer science , engineering , structural engineering , physics , mechanical engineering , artificial intelligence , control (management) , thermodynamics

Due to the doubly salient structure, high magnetic flux density in the air gap and low pole number, cogging torque of 6/4 pole flux‐switching permanent magnet (FSPM) machine is seriously high. In some cases, it may cause this machine hard to start up and serious torque ripple. So, reducing the cogging torque of 6/4 pole FSPM machine to a certain low extent is important to keep it work properly. To reduce cogging torque, a chamfering and flange rotor pole shape is proposed to reduce the cogging torque of 6/4 pole FSPM machine without skewing teeth. The key dimensions of the proposed rotor pole shape have been optimised by analytical methods and simulation based on finite‐element analysis. The effectiveness of the proposed method has been verified by experimental results. The effect of the proposed rotor pole shape method on back‐electromagnetic force and average electromagnetic torque has also been investigated.

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