Electromagnetic and Thermal Analysis of a Permanent Magnet Motor Considering the Effect of Articulated Robot Link

Phuong Thi Luu, Ji-Young Lee, Ji-Heon Lee and Jung-Woo Park
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Phuong Thi Luu: R&D Center, Higen Motor Co., Ltd., Changwon 51555, Korea
Ji-Young Lee: Energy and Power Conversion Engineering, University of Science & Technology, Daejeon 34113, Korea
Ji-Heon Lee: Electric Machines and Drives Research Center, Korea Electrotechnology Research Institute, Changwon 51543, Korea
Jung-Woo Park: Electric Machines and Drives Research Center, Korea Electrotechnology Research Institute, Changwon 51543, Korea

Energies, 2020, vol. 13, issue 12, 1-10

Abstract: This paper presents the electromagnetic and thermal characteristics of a permanent magnet synchronous motor (PMSM) in a joint actuator which is used for articulated robot application. In an attempt to design a compact PMSM for the articulated robot, robot link should be taken into consideration during the motor design process as it can reduce the temperature distribution on motor, thus reducing the volume of the motor. A lumped-parameter thermal model of PMSM with and without a link is proposed considering the core loss, copper loss, and mechanical loss as heat sources. The electromagnetic and thermal analysis results are well confirmed by the experiment in a 400 W 20-pole/24-slot PMSM. The experiment results show that the robot link helps to reduce the motor end-winding temperature by about 40%, and this leads to an increase in power density of the motor.

Keywords: articulated robot link; electromagnetic field; permanent magnet synchronous machine; thermal problem (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
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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