A Polymer-Based Air Gap Length Prediction Method with Current Injection and Fuzzy Logic Observer

Yu Zou; K. W.Eric Cheng; Chow Norbert Cheung; J. F. Pan

doi:10.1109/TMAG.2017.2707072

A Polymer-Based Air Gap Length Prediction Method with Current Injection and Fuzzy Logic Observer

Yu Zou, K. W.Eric Cheng, Chow Norbert Cheung, J. F. Pan

Research output: Journal article publication › Journal article › Academic research › peer-review

3 Citations (Scopus)

Abstract

In this paper, an approach combining current pulses injection and fuzzy logic observer to measure the air gap length of linear machines is proposed. A polymer enclosed by a coil is produced and selected as the test object. The characteristics and production process for the polymer is introduced and its magnetic feature has been studied. Injecting current pulses is used to calculate the self-inductance of the coil fixed on the cores that is directly influenced by the air gap length from the polymer. By using a fuzzy logic observer, the air gap length can be estimated precisely according to the variations of the self-inductance. Experimental results show the effectiveness of the proposed measurement method and the results prove that the proposed method is suitable for the air gap measurement for linear machines.

Original language	English
Article number	7932533
Journal	IEEE Transactions on Magnetics
Volume	53
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2017.2707072
Publication status	Published - 1 Nov 2017

Keywords

Air gap length
current pulse injection
fuzzy logic observer
polymer

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

More information

10.1109/TMAG.2017.2707072

Cite this

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N2 - In this paper, an approach combining current pulses injection and fuzzy logic observer to measure the air gap length of linear machines is proposed. A polymer enclosed by a coil is produced and selected as the test object. The characteristics and production process for the polymer is introduced and its magnetic feature has been studied. Injecting current pulses is used to calculate the self-inductance of the coil fixed on the cores that is directly influenced by the air gap length from the polymer. By using a fuzzy logic observer, the air gap length can be estimated precisely according to the variations of the self-inductance. Experimental results show the effectiveness of the proposed measurement method and the results prove that the proposed method is suitable for the air gap measurement for linear machines.

AB - In this paper, an approach combining current pulses injection and fuzzy logic observer to measure the air gap length of linear machines is proposed. A polymer enclosed by a coil is produced and selected as the test object. The characteristics and production process for the polymer is introduced and its magnetic feature has been studied. Injecting current pulses is used to calculate the self-inductance of the coil fixed on the cores that is directly influenced by the air gap length from the polymer. By using a fuzzy logic observer, the air gap length can be estimated precisely according to the variations of the self-inductance. Experimental results show the effectiveness of the proposed measurement method and the results prove that the proposed method is suitable for the air gap measurement for linear machines.

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A Polymer-Based Air Gap Length Prediction Method with Current Injection and Fuzzy Logic Observer

Abstract

Keywords

ASJC Scopus subject areas

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