Direct Torque and Suspension Force Control for Bearingless Induction Motors Based on Active Disturbance Rejection Control Scheme

The bearingless induction motor (BIM) system has the characteristics of non-linear, strongly coupled, and highly accurate. To achieve the stable and accurate control of BIM, the methods of direct torque control (DTC) and direct suspension force control (DSFC) based on space vector modulation (SVM) a...

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Bibliographic Details
Published in:IEEE access 2019, Vol.7, p.86989-87001
Main Authors: Li, Ke, Cheng, Guoyu, Sun, Xiaodong, Zhao, Dean, Yang, Zebin
Format: Article
Language:English
Subjects:
Active control
active disturbance rejection control
Air gaps
Bearingless induction motor
Control systems
direct suspension force control
direct torque control
Force
Induction motors
Jamming
Magnetic levitation
Rejection
Robustness
Rotors
Space vector modulation
State observers
Torque
Tracking errors
Windings
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Summary:The bearingless induction motor (BIM) system has the characteristics of non-linear, strongly coupled, and highly accurate. To achieve the stable and accurate control of BIM, the methods of direct torque control (DTC) and direct suspension force control (DSFC) based on space vector modulation (SVM) are introduced first. However, the dynamic performance and uncertain anti-jamming robustness of the system need to be further researched. Based on the BIM control system, the active disturbance rejection control (ADRC) technology is selected in this paper. The total disturbance of the system is estimated in real time by using the extended state observer (ESO). According to the estimated value of the ESO, the disturbance can be compensated by the ADRC in time to eliminate the steady-state tracking error to achieve good anti-interference performance. The ADRC-based direct torque and suspension force control system for the BIM is designed and simulated by the MATLAB software. The simulation and experiment results show that the ADRC technology can effectively suppress the impact of load disturbance, reduce the overshoot, and have strong robustness.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2019.2925359