Improved ADRC for a Maglev planar motor with a concentric winding structure

Improved ADRC for a Maglev planar motor with a concentric winding structure

Kou, Baoquan (Harbin Institute of Technology)
Xing, Feng (Harbin Institute of Technology)
Zhang, Chaoning
Zhang, Lu (TU Delft Pattern Recognition and Bioinformatics; School of Electrical Engineering and Automation; Harbin Institute of Technology)
Zhou, Yiheng (Harbin Institute of Technology)
Wang, Tiecheng (Harbin Institute of Technology)

2016

In the semiconductor industry, positioning accuracy and acceleration are critical parameters. To improve the acceleration speed of a motor, this paper proposes the moving-coil maglev planar motor with a concentric winding structure. The coordinate system has been built for the multiple degrees of freedom movement system. The Lorenz force method has been applied to solve its electromagnetic model. The real-time solving of the generalized inverse matrix of factors can realize the decoupling of the winding current. When the maglev height changes, the electromagnetic force and torque decreases exponentially with the increase of the air gap. To decrease the influence on control system performance by the internal model change and the external disturbance, this paper proposes an improved active disturbance rejection control (ADRC) to design the controller. This new controller overcomes the jitter phenomenon due to the turning point for the traditional ADRC, thus it is more suitable for the maglev control system. The comparison between ADRC and the improved ADRC has been conducted, the result of which shows the improved ADRC has greater robustness.

Concentric winding
Improved ADRC
Maglev planar motor
Robustness

http://resolver.tudelft.nl/uuid:927678db-9839-492e-97a2-55821ff9828d

https://doi.org/10.3390/app6120419

Applied Sciences, 6 (12)

Institutional Repository

journal article

© 2016 Baoquan Kou, Feng Xing, Chaoning Zhang, Lu Zhang, Yiheng Zhou, Tiecheng Wang