Optimum design criteria of an ALA-SynRM for the maximum torque density and power factor improvement
Issue title: Special Supplement Issue: Selected papers from the 13th International Workshop on Optimization and Inverse Problems in Electromagnetism (OIPE 2014)
Affiliations: Electrical Engineering Department, Hanbat National University, Daejeon, Korea
Correspondence:
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Corresponding author: Jung Ho Lee, Electrical Engineering Department, Hanbat National University, Daejeon 305-719, Korea. E-mail:limotor@hanbat.ac.kr
Abstract: This paper covers the characteristic analysis and optimum
design of an axially laminated anisotropic (ALA) type Synchronous Reluctance
Motor (SynRM) using a coupled Finite Element Method (FEM) and Response
Surface Methodology (RSM). The rotor core of an ALA type adheres to the
shaft axis, which has higher torque characteristics and a higher power
factor due to the large difference of the (Ld-Lq) and
(Ld/Lq) ratio. However, this assembly structure is affected by the
centrifugal force around the shaft axis. This paper covers the study of an
ALA-type rotor to solve this problem. Therefore, by simulating the structure
and the electromagnetic field, it is confirmed that the width of rotor core
and insulator is set to design variables to reduce the minimum loss and the
centrifugal force. Finally, comparisons are given with the characteristics
of a same rated wattage traction induction motor and those of an ALA-SynRM,
respectively.
Keywords: ALA-SynRM, torque density, power factor, centrifugal force, traction motor
