Analytical Modeling and Optimization for Electromagnetic Performances of Fractional-Slot PM Brushless Machines

Seun Guy Min, Gerd Bramerdorfer, Bulent Sarlioglu

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a closed-form solution to optimize surface permanent magnet (SPM) machines using concentrated windings. An analytical model is developed to predict the electromagnetic performances of fractional-slot PM machines. The model can be used to evaluate open circuit magnetic field distribution with stator slotting effects, armature reaction field distributions, back-EMF waveform, winding inductance, cogging torque, electromagnetic ripple torque, efficiency, specific power, radial force density, and vibration mode order. Particle swarm optimization (PSO) technique is applied to the proposed model in order to search for solutions which are a good compromise between conflicting objectives. The performances of the optimized machine are verified using finite element analysis (FEA). Finally, the analytical and FE results have been validated with the experimental data, demonstrating a strong correlation between key machine parameters.
Original languageEnglish
Article number8066327
Number of pages10
JournalIEEE Transactions on Industrial Electronics
VolumePP
Issue number99
DOIs
Publication statusPublished - Oct 2017

Fields of science

  • 202 Electrical Engineering, Electronics, Information Engineering
  • 202009 Electrical drive engineering
  • 202011 Electrical machines
  • 202025 Power electronics
  • 202027 Mechatronics

JKU Focus areas

  • Mechatronics and Information Processing

Cite this