<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper presents a generic field model of radial magnetization (RM) pattern produced by multiple segmented magnets per rotor pole in surface-mounted permanent magnet (PM) machines. The magnetization vectors from either odd- or even-number of magnet blocks per pole are described. Fourier decomposition is first employed to derive the field model, and later integrated with the exact 2D analytical subdomain method to predict the magnetic field distributions and other motor global quantities. For the assessment purpose, a 12-slot/8-pole surface-mounted PM motor with two segmented magnets per pole is investigated by using the proposed field model. The electromagnetic performances of the PM machines are intensively predicted by the proposed magnet field model which include the magnetic field distributions, airgap flux density, phase back-EMF, cogging torque, and output torque during either open-circuit or on-load operating conditions. The analytical results are evaluated and compared with those obtained from both 2D and 3D finite element analyses (FEA) where an excellent agreement has been achieved.</p></abstract>

This paper presents a generic field model of radial magnetization (RM) pattern produced by multiple segmented magnets per rotor pole in surface-mounted permanent magnet (PM) machines. The magnetization vectors from either odd- or even-number of magnet blocks per pole are described. Fourier decomposition is first employed to derive the field model, and later integrated with the exact 2D analytical subdomain method to predict the magnetic field distributions and other motor global quantities. For the assessment purpose, a 12-slot/8-pole surface-mounted PM motor with two segmented magnets per pole is investigated by using the proposed field model. The electromagnetic performances of the PM machines are intensively predicted by the proposed magnet field model which include the magnetic field distributions, airgap flux density, phase back-EMF, cogging torque, and output torque during either open-circuit or on-load operating conditions. The analytical results are evaluated and compared with those obtained from both 2D and 3D finite element analyses (FEA) where an excellent agreement has been achieved.

Fourier decomposition of segmented magnets with radial magnetization in surface-mounted PM machines

Universiti Malaysia Perlis, Pauh Putra Campus

Universiti Sains Malaysia, Engineering Campus

Deakin University, Geelong Waurn Ponds Campus

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

This paper presents a generic field model of radial magnetization (RM) pattern produced by multiple segmented magnets per rotor pole in surface-mounted...

Fourier decomposition of segmented magnets with radial magnetization in surface-mounted PM machines

Publicado en línea: 19 ene 2018

Páginas: 470 - 475

Recibido: 17 jul 2017

DOI: https://doi.org/10.1515/jee-2017-0082

Palabras clave
Fourier decomposition, magnet segmentation, permanent magnet synchronous machine, radial magnetization

© 2017 Tow Leong Tiang et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Fourier decomposition of segmented magnets with radial magnetization in surface-mounted PM machines

Publicado en línea: 19 ene 2018

Páginas: 470 - 475

Recibido: 17 jul 2017

DOI: https://doi.org/10.1515/jee-2017-0082

Palabras claveFourier decomposition, magnet segmentation, permanent magnet synchronous machine, radial magnetization

© 2017 Tow Leong Tiang et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Palabras clave
Fourier decomposition, magnet segmentation, permanent magnet synchronous machine, radial magnetization