Title :
Design Considerations for Switched Reluctance Machines With a Higher Number of Rotor Poles
Author :
Bilgin, Berker ; Emadi, Ali ; Krishnamurthy, Mahesh
Author_Institution :
Electr. Power & Power Electron. Center, Illinois Inst. of Technol., Chicago, IL, USA
Abstract :
Switched-reluctance-machine (SRM) technology is a potential candidate for the propulsion systems of hybrid and plug-in hybrid electric vehicles. They are robust in harsh operational conditions and have a wide constant power speed range. Conventional SRM configurations have a higher number of stator poles than rotor poles. This paper presents the advantages of a novel SRM configuration with the number of rotor poles greater than the number of stator poles. It also investigates different design challenges toward the traction applications. The proposed SRM configuration is based on a pole-design formula. Geometrical design equations and related challenges are introduced, and their applicability has been verified on a three-phase 6/10 SRM using finite-element-analysis simulations.
Keywords :
battery powered vehicles; finite element analysis; geometry; poles and towers; reluctance machines; rotors; stators; traction motors; SRM technology; finite-element-analysis simulations; geometrical design equations; plug-in hybrid electric vehicles; pole-design formula; rotor poles; stator poles; switched-reluctance-machine technology; three-phase 6-10 SRM; traction applications; Inductance; Magnetic flux density; Reluctance machines; Rotors; Stator windings; Torque; Finite element analysis (FEA); machine design; plug-in hybrid electric vehicle (PHEV); switched reluctance machine (SRM);
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2011.2141102