Three-degree-of-freedom positioning control of magnetically levitated permanent magnet planar motor using active disturbance rejection control scheme

Author:

Zhang Xinhua1,Zhu Qing1,Sun Yukun2,Yang Zebin1,Sun Xiaodong3

Affiliation:

1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, China

2. School of Power Engineering, Nanjing Institute of Technology, Nanjing, China

3. Automotive Engineering Research Institute, Jiangsu University, Zhenjiang, China

Abstract

Magnetically levitated permanent magnet planar motor is a new-generation motion device in modern precision industry, and the design of advanced motion controller has always been a main concern in the research and development of magnetically levitated permanent magnet planar motor. Due to the decrease in electromagnetic force caused by the deflection of the mover or the sharp decrease in magnetic flux density with height, it is very difficult to realize accurate positioning control of 3 degrees of freedom. In this article, an active disturbance rejection control scheme is adopted. The extended state observer is used to estimate the comprehensive disturbance and motion state in real time. Then, according to the value estimated by the extended state observer, the active disturbance rejection control motion controller can compensate the electromagnetic force in time to achieve good anti-jamming performance. Simulation and experimental results demonstrate that the adopted active disturbance rejection control scheme has good dynamic performance and uncertain disturbance robustness.

Publisher

SAGE Publications

Subject

Mechanical Engineering

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