Comparison of globally optimized partitioned stator SFPM machines with different stator/rotor pole combinations

Z. Wu, Z. Zhu, D. Evans

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Partitioned stator (PS) switched flux (SF) permanent magnet (PM) (SFPM) (PS-SFPM) machine is a novel SFPM machine in which the PMs and armature windings are separately arranged in two different stators. It exhibits higher torque density than the conventional SFPM machine with single stator due to the higher utilization of inner space [1]. The PS-SFPM machine has combined synergies of magnetic gear [2] and SFPM machine. Its operation principle is similar to magnetically-geared machine. Electromagnetic (EM) performance of the 12-stator-pole PS-SFPM machines having 10-, 11-, 13- and 14-rotor-pole are compared in [1]. However, they are not globally optimized since they share the same partitioned stator. In this paper, EM performance of these 4 machines are comprehensively compared in detail based on the globally optimized designs for each of the stator and rotor pole number combination for the highest average EM torques. The global optimization is conducted under the rated copper loss pcu=20W and brushless AC operation with zero d-axis current control.

Original languageEnglish
Title of host publication2015 IEEE International Magnetics Conference, INTERMAG 2015
ISBN (Electronic)9781479973224
Publication statusPublished - 1 Jan 2015
Event2015 IEEE International Magnetics Conference, INTERMAG 2015 - Beijing, China, Beijing, China
Duration: 11 May 201515 May 2015


Conference2015 IEEE International Magnetics Conference, INTERMAG 2015

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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