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Multi-objective optimization design of external rotor permanent magnet synchronous motor for robot arm

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Abstract

On the basis of the skewed pole model, this study uses the elite opposition-based golden-sine whale optimization algorithm to carry out the multi-objective optimization design of the frameless external rotor permanent magnet synchronous motor of the robot arm and achieve high torque density and low torque ripple. First, the key parameters affecting the torque ripple and torque density of the motor are analyzed. Second, the angle of the oblique pole is studied to reduce torque ripple. On the basis of the oblique pole model of the motor, the sample library is established according to the key parameters, the K-nearest neighbor algorithm is introduced for regression fitting, and the high-precision and fast calculation model of the motor is established. Third, the elite opposition-based golden-sine whale optimization algorithm (EGWOA) is introduced to optimize the key parameters of the fitting model with the objective of reducing torque ripple and increasing torque density, and the non dominated sorting and crowding degree calculation methods are used to improve it. Finally, a prototype is made to prove the effectiveness of the optimized design.

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Acknowledgments

This work was supported by Natural Science Foundation of Anhui Province (2108085ME179), National Natural Science Foundation of China (51607002), Key project of National Natural Science funds (51637001).

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Authors and Affiliations

  1. School of Electrical Engineering and Automation, Anhui University, Hefei, Anhui Province, 230601, People’s Republic of China

    Fang Xie, Houying Wang, Shilin Ni, Jinhu Xu & Ziang Zheng

  2. National Engineering Laboratory of Energy-saving Motor and Control Technology, Anhui University, Hefei, Anhui Province, 230601, People’s Republic of China

    Fang Xie, Houying Wang, Shilin Ni, Jinhu Xu & Ziang Zheng

  3. Engineering Research Center of Power Quality, Ministry of Education, Anhui University, Hefei, Anhui Province, 230601, People’s Republic of China

    Fang Xie, Houying Wang, Shilin Ni, Jinhu Xu & Ziang Zheng

Authors
  1. Fang Xie
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  2. Houying Wang
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  3. Shilin Ni
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  4. Jinhu Xu
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Corresponding author

Correspondence to Fang Xie.

Additional information

Fang Xie was born in 1977. She received her Ph.D. degree in Circuits and Systems from Anhui University, Hefei, China, in 2015. She is presently working as a Professor in the School of Electrical Engineering and Automation, Anhui University. Her current research interests include motor control and power electronic technology.

Houying Wang was born in July 1998. He is currently working toward his master’s degree in electrical engineering with the School of Electrical Engineering and Automation, Anhui University, Hefei, China. His research interests include motor control and Design of Permanent Magnet Synchronous Motor.

Shilin Ni was born in February 1999. Currently, he is pursuing a Master’s degree in Electronic Information at the School of Electrical Engineering and Automation, Anhui University, Hefei, China. His research interests include motor control and motor control system design.

Jinhu Xu obtained a Bachelor’s degree in Electrical Engineering and Automation from Anhui Jianzhu University in Hefei, China in 2021 and is currently pursuing a Master’s degree in Motor Control. His current research interests include the control of permanent magnet synchronous motor drive.

Ziang Ang was born in 2001. He is presently working towards his M.S. degree in Electrical Engineering in the School of Electrical Engineering and Automation, Anhui University, Hefei, China. His current research focuses on the design of permanent magnet synchronous motors.

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Xie, F., Wang, H., Ni, S. et al. Multi-objective optimization design of external rotor permanent magnet synchronous motor for robot arm. J Mech Sci Technol 38, 803–814 (2024). https://doi.org/10.1007/s12206-024-0127-8

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  • DOI: https://doi.org/10.1007/s12206-024-0127-8

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