Design of fractional-slot permanent magnet synchronous motor with concentrated windings and interior permanent magnets

摘要

W artykule przedstawiono projekt silnika synchronicznego z magnesami trwa?ymi (IPMSM) o uzwojeniu ufamkowo-?lobkowym. Badaniom poddano maszyny PMSM o stosunku ??obki/bieguny 12/8 oraz 12/10. Zastosowano analiz? metod? elementów skończonych. Wykazano, ?e maksymalny moment mechaniczny oraz os?abianie strumienia s? silnie zale?ne od stosunku ilo?ci ??obków stojana do liczby par biegunów wirnika oraz jako?ci materia?ów.%The paper presents design of fractional-slot permanent magnet synchronous motors with concentrated windings and interior permanent magnets. Inner PM rotor machines with 12 slot/8 poles and 12 slot/10 poles were investigated. Finite element analysis is employed in order to determine the performance of each motor. It is shown that the maximal torque capability and the flux-weakening performance of the particular machine are strongly dependent on the stator slot number/rotor pole number combination, rotor barrier design and on the quality of used PM material.