Skip to Main content Skip to Navigation
Journal articles

Optimum arrangement of PMs in surface-mounted PM machines: cogging torque and flux density harmonics

Abstract : In surface-mounted PM machines, the cogging torque and the low-order harmonics of the air gap magnetic flux density are the main sources of the torque pulsation. These variables are strongly influenced by the distribution of the PMs on the surface of the rotor as well as the PMs' magnetization. In the presented work, the impact of the arrangement of the PMs and the PMs' magnetization pattern is studied. The PMs are arranged by some techniques such as PM arc optimization, PM shifting, PM segmentation and applying mixed material PMs. In addition, the parallel and radial magnetizations are investigated. For this purpose, the air gap flux density and cogging torque in the slotted SPM machines are predicted analytically. Using the analytical model and applying a direct search algorithm, the optimum arrangement for each technique is found. Moreover, to perform a multi-objective optimization, a weighted normalization method is applied. Finally, the proposed model and the obtained results are validated by finite element analysis.
Complete list of metadata

https://hal.univ-lorraine.fr/hal-02930726
Contributor : Noureddine Takorabet Connect in order to contact the contributor
Submitted on : Friday, September 4, 2020 - 2:44:16 PM
Last modification on : Wednesday, November 3, 2021 - 4:46:26 AM

Identifiers

Collections

Citation

Vahid Zamani Faradonbeh, Samad Taghipour Boroujeni, Noureddine Takorabet. Optimum arrangement of PMs in surface-mounted PM machines: cogging torque and flux density harmonics. Electrical Engineering, Springer Verlag, 2020, 102 (3), pp.1117-1127. ⟨10.1007/s00202-020-00925-8⟩. ⟨hal-02930726⟩

Share

Metrics

Record views

48