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Ali Jabbari

Ali Jabbari

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0003-2543-8423
Education: PhD.
ScopusId: 56324004100
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
An Analytical Study on Iron Pole Shape Optimization in High‑Speed Interior Permanent Magnet Machines
Type
JournalPaper
Keywords
Analytical modeling · Shape optimization · Pulsating torque · IPM machine
Year
2019
Journal Iranian Journal of Science and Technology Transactions of Electrical Engineering-
DOI
Researchers Ali Jabbari

Abstract

Interior permanent magnet (IPM) motors are of extensive interest in high-speed applications, where high efficiency, high power density and robustness for these motors are a challenge. However, the noise and vibration caused due to cogging torque, electromagnetic torque ripple and reluctance torque ripple can greatly affect the machine performance. The main contribution of this paper is to develop a hyperbolic form analytical expression for optimal rotor iron pole curve in IPM motors to mitigate pulsating torque components. The analytical method is based on the resolution of Laplace equation in air gap sub-domain in polar coordinate by using the sub-domain method. The proposed method is applied to the performance computation of a prototype IPM machine, i.e., a three-phase 18S-8P motor. The analytical results are validated through FEA method and experimental tests.