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Appl. Sci. 2017, 7(1), 7; doi:10.3390/app7010007

Design and Optimization of a Lorentz-Force-Driven Planar Motor

Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
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Author to whom correspondence should be addressed.
Academic Editor: Wen-Hsiang Hsieh
Received: 5 October 2016 / Accepted: 16 December 2016 / Published: 22 December 2016
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Abstract

This paper describes a short-stroke Lorentz-force-driven planar motor which can realize three-degree-of-freedom motions in high-precision positioning systems. It is an extended version of our previous publication. Based on the analytical model, the force expression concerning the main dimensional parameters is derived. Compared with the finite element simulation, the optimization method in this paper is completely based on the mathematical model, which saves considerable time and has clear physical meaning. The effect of the main parameters on the motor performances such as force, force density, and acceleration are analyzed. This information can provide important design references for researchers. Finally, one prototype is tested. The testing values for the resistance and inductance of the square coil agree well with the analytical values. Additionally, the measured forces show a good agreement with the analytical force expression, and the force characteristics show a good symmetry in the x and y directions. View Full-Text
Keywords: planar motor; electromagnetic actuator; short stroke planar motor; electromagnetic actuator; short stroke
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhang, H.; Kou, B. Design and Optimization of a Lorentz-Force-Driven Planar Motor. Appl. Sci. 2017, 7, 7.

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