Rotor radial disturbance control for a bearingless induction motor based on improved active disturbance rejection control
ISSN: 0332-1649
Article publication date: 29 October 2018
Issue publication date: 24 January 2019
Abstract
Purpose
The purpose of this paper is to handle the problem of the radial disturbance caused by rotor mass unbalance and load change in a bearingless induction motor (BIM).
Design/methodology/approach
The active disturbance rejection controller (ADRC) is used to replace the traditional PI controller, and a cubic interpolation method is used to fit the nonlinear function of ADRC, so as to improve the control performance. Meanwhile, a disturbance observer is applied to the suspension system, and the observed disturbance acceleration is compensated to the suspension system in the form of current; thus, the suppression of the rotor radial disturbance is realized.
Findings
The proposed method can effectively suppress the radial disturbance of the rotor, meliorate the suspension performance of the motor and enhance the anti-interference ability of the system. Besides, it has excellent dynamic and static performance.
Originality/value
A radial disturbance control strategy of the BIM based on improved ADRC is proposed is to suppress the radial disturbance of the rotor. The improved ADRC is to enhance the control performance of the system, and the disturbance observer is designed to observe and compensate the disturbance.
Keywords
Acknowledgements
This work was supported by the Natural Science Foundation of China (51475214 and 51875261), the Natural Science Foundation of Jiangsu Province (BK20170071 and 20180046), the Jiangsu Province “333” Project Granted Project (BRA2017441), Zhenjiang Key Research and Development Program (GY2016003), the “Qinglan project” of Jiangsu Province, the Six Categories Talent Peak of Jiangsu Province under Projects 2015-XNYQC-003, the Key Project of Natural Science Foundation of Jiangsu Higher Education Institutions under Project 17KJA460005, and the Jiangsu University Advantage Discipline Construction Project.
Citation
Yang, Z., Chen, X., Sun, X., Bao, C. and Lu, J. (2019), "Rotor radial disturbance control for a bearingless induction motor based on improved active disturbance rejection control", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 38 No. 1, pp. 138-152. https://doi.org/10.1108/COMPEL-05-2018-0217
Publisher
:Emerald Publishing Limited
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