NDLI: Performance of Doubly salient Permanent Magnet Motors for Parallel and Tapered Rotor Poles

Content Provider	IEEE Xplore Digital Library
Author	Sheth, N.K. Rajagopal, K.R.
Copyright Year	2006
Description	Author affiliation: Nirma Unov. of Sci. & Technol., Ahmedabad (Sheth, N.K.)
Abstract	This paper presents the results of a finite element (FE) analysis carried out to study the effects of variation of rotor pole arc and rotor pole shapes on the performances of a doubly salient permanent magnet (DSPM) motor; based on which a clear comparison can be done on two types of rotor pole geometries namely, the parallel and tapered. Two-dimensional (2-D) FE models of a 8/6 DSPM motor for parallel sided and tapered rotor poles with rotor outer pole arcs varying from of 15deg to 38deg have been analyzed with appropriate phase excitations. It is observed that in all the cases, the tapered rotor pole gives higher average torque. The maximum average torques in both the cases, occur for an outer pole arc of 22deg, where the maximum torque in tapered case is more by 1.8%. The average torques in both the cases varies similarly for rotor outer pole arcs above 22deg and up to 30deg. This is also true in case of torque ripples. For outer rotor pole arcs of less than the optimum 22deg, it is observed that the tapered case is better; at 15deg pole arc, the average torque developed by the motor is 14.8% higher than the corresponding value of parallel-sided case. The magnet utilization in case of the tapered poles is found to be better for rotor pole arcs up to 26deg
Starting Page	1
Ending Page	2
File Size	1895600
Page Count	2
File Format	PDF
ISBN	1424408636
DOI	10.1109/APMRC.2006.365921
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-29
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Permanent magnet motors Rotors Reluctance motors Brushless motors Torque Magnetic analysis Performance analysis Stators Finite element methods Induction motors Permanent Magnet Motor Doubly Salient Motor DSPM FE Analysis Motor
Content Type	Text
Resource Type	Article

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