journal article·2021-05-25Open access

Optimum Slot and Pole Design for Vibration Reduction in Permanent Magnet Synchronous Motors

Mikel Mendizabal, Alex McCloskey, Javier Poza, Sergio Zarate, Jaione Iriondo, Leire Irazu

Applied Sciences· Volume 11· Issue 11

Abstract

Permanent Magnet Synchronous Motors (PMSMs) are increasingly being used and are required to satisfy noise and vibration specifications. Thus, it is necessary to develop design guidelines for electric motors that consider vibration response as a key output of the design. This work shows the influence of the main design parameters regarding PMSMs: the number of slots and the number of poles. First, the influence of the number of slots in the natural frequencies is analysed by Finite Element calculations, which are experimentally verified. Then, the analytical calculation of the vibration response is explained. This is applied for several combinations of the number of slots and the number of poles, and the results are compared. Considering the analytical development, a procedure to choose the most adequate combination of the number of slots and poles is proposed. The analytical predictions are validated according to experimental measurements in two machines.
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Research context

OpenAlex topics: Electric Motor Design and Analysis · Magnetic Bearings and Levitation Dynamics · Magnetic Properties and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Mechanical and Manufacturing Department, Faculty of Engineering, Mondragon Unibertsitatea, Loramendi 4, 20500 Arrasate-Mondragón, Spain

Electronics and Computing Department, Faculty of Engineering, Mondragon Unibertsitatea, Loramendi 4, 20500 Arrasate-Mondragón, Spain

Mechanical Engineering, Orona Elevator Innovation Center, Orona Ideo, Jauregi Bidea s/n, 20120 Hernani, Spain

Funding

Ekonomiaren Garapen eta Lehiakortasun Saila, Eusko Jaurlaritza

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