Calculation on proportion of rotor shape for torque ripple reduction of axially laminated type synchronous reluctance motor

Article type: Research Article

Authors: Kim, Young Hyun | Lee, Jung Ho^*

Affiliations: Electrical Engineering Department, Hanbat National University, Daejeon 305-719, Korea

Correspondence: [*] Corresponding author: Jung Ho Lee, Department of Electrical Engineering, Hanbat National University, Daejeon 305-719, Korea. E-mail: limotor@hanbat.ac.kr.

Abstract: This paper deals with computation on the ratio of rotor core width and insulator width to maximize the torque density and to minimize the torque ripple of axially multi-layer type synchronous reluctance motor (ALA-SynRM) for electric valve actuators. The thickness of the rotor core and flux barrier has the greatest effect on the flux path. Therefore, the optimum design on proportion of rotor shape for ALA-SynRM is proposed in this paper by coupled finite element method (FEM) and response surface method (RSM). Also, the characteristics dependence on the presence or absence of a rotor core rib, which causes magnetic saturation, was analyzed by calculating the inductance. Finally, the results of analysis are demonstrated through the simulation and by an experiment.

Keywords: Axially laminated type synchronous reluctance motor (ALA-SynRM), electric valve actuator, Box-Behnken method, proportion of rotor structure

DOI: 10.3233/JAE-172292

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 56, no. S1, pp. 153-162, 2018