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Design and Position Control of Overhang-Type Rail Mover Using Dual BLAC Motor

Author

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  • Kiwan Cho

    (Department of Mechatronics Eng., Kyungsung University, 309, Suyeong-ro, Nam-gu, Busan 48434, Korea)

  • Dong-Hee Lee

    (Department of Mechatronics Eng., Kyungsung University, 309, Suyeong-ro, Nam-gu, Busan 48434, Korea)

Abstract

This paper presents the design and position control scheme of an overhang-type rail mover system driven by a dual Brushless AC (BLAC) motor with a simple Hall position sensor inside each motor. The overhang-type roller is chosen to reduce the slip between the roller and rail surface due to gravity. The BLAC motors are used to provide smooth translation along the rail and effective turning. Imbalances on any part of the motor and the simplicity of the Hall position sensor can create additional disturbance load, unsteady movement, and position errors. To reduce the sudden moving position error between the two motors, a balancing compensator with a Proportional-Differential (PD) position controller, which is based on the instantaneous speed and position trajectories, is presented. Furthermore, speed and position reference models are designed to compensate for the low Hall sensor resolution in the low-speed range. Therefore, steady-state position errors can then be regulated simply by using the instantaneous speed and position information. Experiments were performed to verify the viability of the proposed system and control. The results show a significant improvement in roller translation along the rail and stopping position accuracy.

Suggested Citation

  • Kiwan Cho & Dong-Hee Lee, 2021. "Design and Position Control of Overhang-Type Rail Mover Using Dual BLAC Motor," Energies, MDPI, vol. 14(4), pages 1-15, February.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:4:p:1000-:d:499243
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    References listed on IDEAS

    as
    1. Пигнастый, Олег & Koжевников, Георгий, 2019. "Распределенная Динамическая Pde-Модель Программного Управления Загрузкой Технологического Оборудования Производственной Линии [Distributed dynamic PDE-model of a program control by utilization of t," MPRA Paper 93278, University Library of Munich, Germany, revised 02 Feb 2019.
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