Cogging Force Optimization of Double-Sided Tubular Linear Machine with Tooth-Cutting

Liang Guo; Qi Zhou; Michael Galea; Wenqi Lu

doi:10.1109/TIE.2021.3101017

Cogging Force Optimization of Double-Sided Tubular Linear Machine with Tooth-Cutting

Liang Guo, Qi Zhou, Michael Galea, Wenqi Lu

Research output: Journal Publication › Article › peer-review

10 Citations (Scopus)

Abstract

The double-sided tubular linear machine (DSTLM) has a more compact structure than general single-sided motors, resulting in a higher power density, typically at the cost of a higher cogging force. To reduce this aspect and make it more suitable for applications in wave energy conversion systems or elevator driver systems, a new tooth-cutting topology is proposed in this article. The Schwarz-Christoffel mapping method is used to model and analyze the magnetic field and cogging force of the DSTLM. Based on the analytical model and the relationships between the cutting dimensions and the force performances, optimization is carried out by using a differential evolution algorithm. The optimization and the experiment results show that the proposed tooth-cutting topology can effectively reduce the cogging force at the small cost of weakening average thrust.

Original language	English
Pages (from-to)	7161-7169
Number of pages	9
Journal	IEEE Transactions on Industrial Electronics
Volume	69
Issue number	7
DOIs	https://doi.org/10.1109/TIE.2021.3101017
Publication status	Published - 4 Aug 2021
Externally published	Yes

Keywords

Analytical modeling
Double-sided
Optimization
Tooth-cutting
Tubular motor

ASJC Scopus subject areas

Control and Systems Engineering
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/TIE.2021.3101017

Cite this

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title = "Cogging Force Optimization of Double-Sided Tubular Linear Machine with Tooth-Cutting",

abstract = "The double-sided tubular linear machine (DSTLM) has a more compact structure than general single-sided motors, resulting in a higher power density, typically at the cost of a higher cogging force. To reduce this aspect and make it more suitable for applications in wave energy conversion systems or elevator driver systems, a new tooth-cutting topology is proposed in this article. The Schwarz-Christoffel mapping method is used to model and analyze the magnetic field and cogging force of the DSTLM. Based on the analytical model and the relationships between the cutting dimensions and the force performances, optimization is carried out by using a differential evolution algorithm. The optimization and the experiment results show that the proposed tooth-cutting topology can effectively reduce the cogging force at the small cost of weakening average thrust.",

keywords = "Analytical modeling, Double-sided, Optimization, Tooth-cutting, Tubular motor",

author = "Liang Guo and Qi Zhou and Michael Galea and Wenqi Lu",

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AU - Guo, Liang

AU - Zhou, Qi

AU - Galea, Michael

AU - Lu, Wenqi

N1 - Publisher Copyright: IEEE

PY - 2021/8/4

Y1 - 2021/8/4

N2 - The double-sided tubular linear machine (DSTLM) has a more compact structure than general single-sided motors, resulting in a higher power density, typically at the cost of a higher cogging force. To reduce this aspect and make it more suitable for applications in wave energy conversion systems or elevator driver systems, a new tooth-cutting topology is proposed in this article. The Schwarz-Christoffel mapping method is used to model and analyze the magnetic field and cogging force of the DSTLM. Based on the analytical model and the relationships between the cutting dimensions and the force performances, optimization is carried out by using a differential evolution algorithm. The optimization and the experiment results show that the proposed tooth-cutting topology can effectively reduce the cogging force at the small cost of weakening average thrust.

AB - The double-sided tubular linear machine (DSTLM) has a more compact structure than general single-sided motors, resulting in a higher power density, typically at the cost of a higher cogging force. To reduce this aspect and make it more suitable for applications in wave energy conversion systems or elevator driver systems, a new tooth-cutting topology is proposed in this article. The Schwarz-Christoffel mapping method is used to model and analyze the magnetic field and cogging force of the DSTLM. Based on the analytical model and the relationships between the cutting dimensions and the force performances, optimization is carried out by using a differential evolution algorithm. The optimization and the experiment results show that the proposed tooth-cutting topology can effectively reduce the cogging force at the small cost of weakening average thrust.

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KW - Double-sided

KW - Optimization

KW - Tooth-cutting

KW - Tubular motor

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Cogging Force Optimization of Double-Sided Tubular Linear Machine with Tooth-Cutting

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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