Torque Ripple Investigation in Squirrel Cage Induction Machines

Marfoli, Alessandro; Sala, Giacomo; Papini, Luca; Bolognesi, Paolo; Gerada, Chris

Abstract

Low torque ripple of electrical machines is an important requirement for many different applications. The causes of torque fluctuations in squirrel cage asynchronous induction motors might be a challenging task due to the complex phenomena raised by the whole set of rotor bars. This paper proposes an accurate analysis of the torque contributions distinguishing in time-varying, synchronous and asynchronous components. The investigation is performed by adopting a general analytical approach based on a circuital modelling technique for electromagnetic devices. The analysis aims to identify spatial harmonic interactions between stator and rotor magneto-motive forces which generate torque components. The most interesting effects obtained from the analytical investigation are compared and validated against finite element results for the most significant operating points.

Citation

Marfoli, A., Sala, G., Papini, L., Bolognesi, P., & Gerada, C. (2019). Torque Ripple Investigation in Squirrel Cage Induction Machines. In 2019 IEEE International Electric Machines & Drives Conference (IEMDC) (140-146). https://doi.org/10.1109/iemdc.2019.8785364

• Conference Name: 2019 IEEE International Electric Machines & Drives Conference (IEMDC)
• Conference Location: San Diego, CA, USA
• Start Date: May 12, 2019
• End Date: May 15, 2019
• Acceptance Date: Feb 17, 2019
• Online Publication Date: Aug 5, 2019
• Publication Date: 2019-05
• Deposit Date: Sep 26, 2019
• Publicly Available Date: Oct 9, 2019
• Publisher: Institute of Electrical and Electronics Engineers
• Pages: 140-146
• Book Title: 2019 IEEE International Electric Machines & Drives Conference (IEMDC)
• ISBN: 9781538693506
• DOI: https://doi.org/10.1109/iemdc.2019.8785364
• Public URL: https://nottingham-repository.worktribe.com/output/2665241
• Publisher URL: https://ieeexplore.ieee.org/document/8785364
• Additional Information: © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.