Reducing unbalanced magnetic pull of an induction machine through active control

H. Chuan; J. K.H. Shek

doi:10.1049/cp.2016.0330

Reducing unbalanced magnetic pull of an induction machine through active control

H. Chuan, J. K.H. Shek

Department of Mechanical Engineering

University of Edinburgh

Research output: Contribution to conference › Paper › peer-review

5 Citations (SciVal)

Abstract

Unbalanced Magnetic Pull (UMP) occurs when there is rotor eccentricity in an electrical machine which accelerates bearing wear caused by the unbalanced force. An analytical model is developed by using the flux distribution ratio in the airgap, verified using a finite element model. The paper uses the model to investigate UMP in an induction machine at different slip. It uses a UMP/Torque ratio to investigate the slip with the lowest possible UMP for constant torque operation. A control objective on running at a slip with the lowest UMP/Torque ratio is proposed. This control strategy can be achieved by changing the d-axis flux of the induction machine.

Original language	English
DOIs	https://doi.org/10.1049/cp.2016.0330
Publication status	Published - 1 Jan 2016
Event	8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016 - Glasgow, UK United Kingdom Duration: 19 Apr 2016 → 21 Apr 2016

Conference

Conference	8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016
Country/Territory	UK United Kingdom
City	Glasgow
Period	19/04/16 → 21/04/16

Keywords

Active control
Induction machines
Unbalanced magnetic pull

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1049/cp.2016.0330

Cite this

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AU - Shek, J. K.H.

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N2 - Unbalanced Magnetic Pull (UMP) occurs when there is rotor eccentricity in an electrical machine which accelerates bearing wear caused by the unbalanced force. An analytical model is developed by using the flux distribution ratio in the airgap, verified using a finite element model. The paper uses the model to investigate UMP in an induction machine at different slip. It uses a UMP/Torque ratio to investigate the slip with the lowest possible UMP for constant torque operation. A control objective on running at a slip with the lowest UMP/Torque ratio is proposed. This control strategy can be achieved by changing the d-axis flux of the induction machine.

AB - Unbalanced Magnetic Pull (UMP) occurs when there is rotor eccentricity in an electrical machine which accelerates bearing wear caused by the unbalanced force. An analytical model is developed by using the flux distribution ratio in the airgap, verified using a finite element model. The paper uses the model to investigate UMP in an induction machine at different slip. It uses a UMP/Torque ratio to investigate the slip with the lowest possible UMP for constant torque operation. A control objective on running at a slip with the lowest UMP/Torque ratio is proposed. This control strategy can be achieved by changing the d-axis flux of the induction machine.

KW - Active control

KW - Induction machines

KW - Unbalanced magnetic pull

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T2 - 8th IET International Conference on Power Electronics, Machines and Drives, PEMD 2016

Y2 - 19 April 2016 through 21 April 2016

ER -

Reducing unbalanced magnetic pull of an induction machine through active control

Abstract

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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