Sizing of concentrated-wound permanent-magnet machines using thermal analysis

This paper presents a design methodology for concentrated-wound, permanent-magnet, radial-flux machines. A multiphysics approach is adopted where the electromagnetic and thermal capabilities are evaluated in parallel. A scalable thermal and electromagnetic design procedure is formed which centres on a calibrated thermal model. Results are presented which illustrate an optimum machine diameter, split-ratio and active length exist for maximising either power-density or efficiency.