Cogging torque reduction of IPM motor using skewing, notching, pole pairing and rotor pole axial pairing.

Bahrim, Fatihah Shafiqah and Sulaiman, Erwan and Jusoh, LailiIwani and Omar, M. Fairoz and Kumar, Rajesh (2016) Cogging torque reduction of IPM motor using skewing, notching, pole pairing and rotor pole axial pairing. In: IPN Conferences 2016, 01-02 August 2016, Langkawi Seaview Hotel, Langkawi, Kedah.

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Abstract

Interior Permanent Magnet (IPM) motor has been widely used in a range of industrial application due to high power density and good flux-weakening capability. In many of the applications, the high strength of permanent magnets causes the undesirable effects of high cogging torque that can aggravate performance of the motor. Large cogging torque is significantly produced by IPM motor due to the similar length and the effectiveness of the magnetic air-gap. Therefore, the reduction of cogging torque becomes an inreasingly vital subject in IPM motor. In this paper, to minimize the effect of cogging torque in IPM motor, four common techniques for cogging torque reduction such as skewing, notching, pole pairing and rotor axial pole pairing has been analyzed in order to compare the cogging torque effect. 3D finite element analysis (FEA) by JMAG software is carried out for each technique. The results showed the reduction of cogging torque up to 99%, followed by 81.90%, 43.2% and 39.01% compared to the initial model design.

Item Type:Conference or Workshop Item (Paper)
Subjects:T Technology > T Technology (General)
Divisions:Faculty of Electrical and Electronic Engineering > Department of Electrical Power Engineering
ID Code:8409
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:09 May 2017 15:33
Last Modified:09 May 2017 15:33

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