A New Spoke PM Motor with ECC ASPs to Reduce Flux Density Harmonics

This paper proposes new eccentric (ECC) auxiliary salient poles (ASPs) applied in spoke permanent-magnet (PM) motors. These ECC ASPs optimize flux density harmonics and further reduce torque pulsation. Then, the optimization procedure is proposed to reveal the relationship between the ECC method and...

Full description

Saved in:
Bibliographic Details
Published in:Energies (Basel) 2022-09, Vol.15 (17), p.6184
Main Authors: Xu, Gaohong, Tang, Tang, Chen, Qian, Jia, Zexin
Format: Article
Language:English
Subjects:
Analysis
auxiliary salient poles (ASPs)
Computers
eccentric (ECC)
Fluctuations
Flux density
Harmonics
Magnets, Permanent
Methods
Optimization
Permanent magnets
Pulsation
Services
sound and vibration
Stairways
Theoretical analysis
Thickness ratio
Torque
torque pulsation
Vibration
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper proposes new eccentric (ECC) auxiliary salient poles (ASPs) applied in spoke permanent-magnet (PM) motors. These ECC ASPs optimize flux density harmonics and further reduce torque pulsation. Then, the optimization procedure is proposed to reveal the relationship between the ECC method and ASP, and optimization steps are reduced. Firstly, the design of the ECC ASPs is based on the stairs, which are equivalent to sinusoidal flux density. Second, the expressions of offset length for maximum air gap, pole arc angle, and thickness ratio are revealed. Through theoretical analysis and the finite element method (FEM), the proposed ECC ASPs can generate low torque pulsation and improve sound and vibration features.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15176184