Simulation of a Synchronous Planar Magnetically Levitated Motion System Based on a Real-Time Analytical Force Model

Ruotong Peng, Tong Zheng, Xing Lu, Xianze Xu and Fengqiu Xu
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Ruotong Peng: Electronic Information School, Wuhan University, Wuhan 430072, China
Tong Zheng: Electronic Information School, Wuhan University, Wuhan 430072, China
Xing Lu: Electronic Information School, Wuhan University, Wuhan 430072, China
Xianze Xu: Electronic Information School, Wuhan University, Wuhan 430072, China
Fengqiu Xu: Electronic Information School, Wuhan University, Wuhan 430072, China

Energies, 2020, vol. 13, issue 23, 1-16

Abstract: The existing simulation method for the control of linear or planar magnetically levitated actuators always ignores the characteristics of the real physical object, which deteriorates the accuracy of the simulation. In this work, the proposed emulator for the magnetically levitated actuator is developed to consider both the force characteristics and the control algorithm. To model the real controlled object, the mathematical model for 1D (one-dimensional) and 2D (two-dimensional) magnetic arrays is derived where the yaw angle is taken into consideration using the coordinate transformation. The solution of the mathematical model is compared with the commercial BEM (boundary element method) software and the measurements from a force and torque testing setup to highlight the accuracy of the proposed mathematical model. Compared with the traditional simulation method of the motion control systems founded on the simplified system transfer function, the proposed simulation method has higher consistency and is closer to reality. The accuracy and efficiency of the proposed magnetic force model are further verified by the emulator based on the numerical force model and the testing data of the real setup.

Keywords: real-time simulation; electromagnetic force; planar machine; harmonic analysis (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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