An Angle-Compensating, Complex-Coefficient PI Controller Used for Decoupling Control of a Permanent-Magnet Synchronous Motor

An asymmetric, cross-coupling effect, as well as digital control delays, in a permanent-magnet synchronous motor (PMSM) will deteriorate its current-control performance in the high-speed range, especially for electric motors used in electric vehicles (EVs) with features such as high-power density an...

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Main Authors: Jing Guo, Tao Fan, Qi Li, Xuhui Wen
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/14/1/101
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author Jing Guo
Tao Fan
Qi Li
Xuhui Wen
author_facet Jing Guo
Tao Fan
Qi Li
Xuhui Wen
author_sort Jing Guo
collection DOAJ
description An asymmetric, cross-coupling effect, as well as digital control delays, in a permanent-magnet synchronous motor (PMSM) will deteriorate its current-control performance in the high-speed range, especially for electric motors used in electric vehicles (EVs) with features such as high-power density and a low carrier/modulation frequency ratio. In this paper, an angle-compensating, complex-coefficient, proportional-integrator (ACCC-PI) controller is proposed, which aims to provide an excellent decoupling performance even with considerable digital control delay. Firstly, the current open and closed loop complex-coefficient transfer functions were established in the synchronous rotation coordinate system. The proposed method, along with existing ones, were then evaluated and theoretically compared. On this basis, the parameter-tuning method of the ACCC-PI controller was presented. Finally, simulation and experimental results proved the correctness of the theoretical analysis and the proposed method.
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spelling doaj.art-4ca6747235a445b3be87f5ebe94e706e2023-11-23T15:33:25ZengMDPI AGSymmetry2073-89942022-01-0114110110.3390/sym14010101An Angle-Compensating, Complex-Coefficient PI Controller Used for Decoupling Control of a Permanent-Magnet Synchronous MotorJing Guo0Tao Fan1Qi Li2Xuhui Wen3Advanced Optical Instrument Research Department, University of Chinese Academy of Sciences, Haidian District, Beijing 100049, ChinaInstitute of Electrical Engineering, Chinese Academy of Sciences, Haidian District, Beijing 100190, ChinaInstitute of Electrical Engineering, Chinese Academy of Sciences, Haidian District, Beijing 100190, ChinaAdvanced Optical Instrument Research Department, University of Chinese Academy of Sciences, Haidian District, Beijing 100049, ChinaAn asymmetric, cross-coupling effect, as well as digital control delays, in a permanent-magnet synchronous motor (PMSM) will deteriorate its current-control performance in the high-speed range, especially for electric motors used in electric vehicles (EVs) with features such as high-power density and a low carrier/modulation frequency ratio. In this paper, an angle-compensating, complex-coefficient, proportional-integrator (ACCC-PI) controller is proposed, which aims to provide an excellent decoupling performance even with considerable digital control delay. Firstly, the current open and closed loop complex-coefficient transfer functions were established in the synchronous rotation coordinate system. The proposed method, along with existing ones, were then evaluated and theoretically compared. On this basis, the parameter-tuning method of the ACCC-PI controller was presented. Finally, simulation and experimental results proved the correctness of the theoretical analysis and the proposed method.https://www.mdpi.com/2073-8994/14/1/101asymmetric cross couplingcurrent-loop controldigital control delay
spellingShingle Jing Guo
Tao Fan
Qi Li
Xuhui Wen
An Angle-Compensating, Complex-Coefficient PI Controller Used for Decoupling Control of a Permanent-Magnet Synchronous Motor
Symmetry
asymmetric cross coupling
current-loop control
digital control delay
title An Angle-Compensating, Complex-Coefficient PI Controller Used for Decoupling Control of a Permanent-Magnet Synchronous Motor
title_full An Angle-Compensating, Complex-Coefficient PI Controller Used for Decoupling Control of a Permanent-Magnet Synchronous Motor
title_fullStr An Angle-Compensating, Complex-Coefficient PI Controller Used for Decoupling Control of a Permanent-Magnet Synchronous Motor
title_full_unstemmed An Angle-Compensating, Complex-Coefficient PI Controller Used for Decoupling Control of a Permanent-Magnet Synchronous Motor
title_short An Angle-Compensating, Complex-Coefficient PI Controller Used for Decoupling Control of a Permanent-Magnet Synchronous Motor
title_sort angle compensating complex coefficient pi controller used for decoupling control of a permanent magnet synchronous motor
topic asymmetric cross coupling
current-loop control
digital control delay
url https://www.mdpi.com/2073-8994/14/1/101
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