Vector Speed Regulation of an Asynchronous Motor Based on Improved First-Order Linear Active Disturbance Rejection Technology
Asynchronous motors are widely used in industry and agriculture because of their simple structure, low cost, and easy maintenance. However, due to the coupling and uncertain factors of the actual operation of the motor, a traditional controller cannot achieve a satisfactory control effect. A linear...
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doaj-101471b1d907446ca4759192704836df2020-11-25T02:37:49ZengMDPI AGEnergies1996-10732020-05-01132168216810.3390/en13092168Vector Speed Regulation of an Asynchronous Motor Based on Improved First-Order Linear Active Disturbance Rejection TechnologyXuesong Zhou0Chenglong Wang1Youjie Ma2Tianjin Key Laboratory for Control Theory and Application in Complicated Systems, Tianjin University of Technology, Tianjin 300384, ChinaTianjin Key Laboratory for Control Theory and Application in Complicated Systems, Tianjin University of Technology, Tianjin 300384, ChinaTianjin Key Laboratory for Control Theory and Application in Complicated Systems, Tianjin University of Technology, Tianjin 300384, ChinaAsynchronous motors are widely used in industry and agriculture because of their simple structure, low cost, and easy maintenance. However, due to the coupling and uncertain factors of the actual operation of the motor, a traditional controller cannot achieve a satisfactory control effect. A linear active disturbance rejection controller (LADRC), featuring good robustness and adaptability, was proposed to improve the control efficiency of a nonlinear, uncertain plant. A linear extended state observer (LESO) is the core part of a L. The accuracy of the observation of state variables and unknown disturbances is related to the control effect of the controller. The performance of a traditional LESO is not high enough, and thus an error differential is introduced by analyzing the principle of LESO to improve its observation performance. The improved LADRC applies to the vector speed control of the induction motor. Additionally, low-speed and high-speed no-load starting, sudden load, electromagnetic torque, and three-phase stator current of the induction motor was simulated using MATLAB(Developed by MathWorks in Natick, Massachusetts, USA, and dealt by MathWorks Software (Beijing) Co., Ltd in Beijing, China). Theoretical analysis and simulation results show that the ADRC based on the improved linear expansion observer was better than the traditional linear ADRC in terms of the dynamic and static performance and robustness.https://www.mdpi.com/1996-1073/13/9/2168asynchronous motorlinear active disturbance rejection controlerror differentiationvector control |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xuesong Zhou Chenglong Wang Youjie Ma |
spellingShingle |
Xuesong Zhou Chenglong Wang Youjie Ma Vector Speed Regulation of an Asynchronous Motor Based on Improved First-Order Linear Active Disturbance Rejection Technology Energies asynchronous motor linear active disturbance rejection control error differentiation vector control |
author_facet |
Xuesong Zhou Chenglong Wang Youjie Ma |
author_sort |
Xuesong Zhou |
title |
Vector Speed Regulation of an Asynchronous Motor Based on Improved First-Order Linear Active Disturbance Rejection Technology |
title_short |
Vector Speed Regulation of an Asynchronous Motor Based on Improved First-Order Linear Active Disturbance Rejection Technology |
title_full |
Vector Speed Regulation of an Asynchronous Motor Based on Improved First-Order Linear Active Disturbance Rejection Technology |
title_fullStr |
Vector Speed Regulation of an Asynchronous Motor Based on Improved First-Order Linear Active Disturbance Rejection Technology |
title_full_unstemmed |
Vector Speed Regulation of an Asynchronous Motor Based on Improved First-Order Linear Active Disturbance Rejection Technology |
title_sort |
vector speed regulation of an asynchronous motor based on improved first-order linear active disturbance rejection technology |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2020-05-01 |
description |
Asynchronous motors are widely used in industry and agriculture because of their simple structure, low cost, and easy maintenance. However, due to the coupling and uncertain factors of the actual operation of the motor, a traditional controller cannot achieve a satisfactory control effect. A linear active disturbance rejection controller (LADRC), featuring good robustness and adaptability, was proposed to improve the control efficiency of a nonlinear, uncertain plant. A linear extended state observer (LESO) is the core part of a L. The accuracy of the observation of state variables and unknown disturbances is related to the control effect of the controller. The performance of a traditional LESO is not high enough, and thus an error differential is introduced by analyzing the principle of LESO to improve its observation performance. The improved LADRC applies to the vector speed control of the induction motor. Additionally, low-speed and high-speed no-load starting, sudden load, electromagnetic torque, and three-phase stator current of the induction motor was simulated using MATLAB(Developed by MathWorks in Natick, Massachusetts, USA, and dealt by MathWorks Software (Beijing) Co., Ltd in Beijing, China). Theoretical analysis and simulation results show that the ADRC based on the improved linear expansion observer was better than the traditional linear ADRC in terms of the dynamic and static performance and robustness. |
topic |
asynchronous motor linear active disturbance rejection control error differentiation vector control |
url |
https://www.mdpi.com/1996-1073/13/9/2168 |
work_keys_str_mv |
AT xuesongzhou vectorspeedregulationofanasynchronousmotorbasedonimprovedfirstorderlinearactivedisturbancerejectiontechnology AT chenglongwang vectorspeedregulationofanasynchronousmotorbasedonimprovedfirstorderlinearactivedisturbancerejectiontechnology AT youjiema vectorspeedregulationofanasynchronousmotorbasedonimprovedfirstorderlinearactivedisturbancerejectiontechnology |
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