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Research on Energy Transmission Mechanism of the Electro-Hydraulic Servo Pump Control System

Author

Listed:
  • Mingkun Yang

    (School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Gexin Chen

    (School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
    Mechanical and Electrical Engineering, Xinjiang Institute of Engineering, Urumqi 830023, China)

  • Jianxin Lu

    (School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Cong Yu

    (School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Guishan Yan

    (School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Chao Ai

    (School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Yanwen Li

    (School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China)

Abstract

The electro-hydraulic servo pump control system (EHSPCS) is a volume control system that uses a permanent magnet synchronous motor (PMSM) with a fixed displacement pump to directly drive and control the hydraulic cylinder. The energy transmission law of the system is very complicated due to the transformation of electrical, mechanical and hydraulic energy as well as other energy fields, and qualitative analysis of the energy transfer efficiency is difficult. Energy transfer analysis of the EHSPCS under different working conditions and loads is proposed in this paper. First, the energy flow transfer mechanism was analyzed, and the mathematical and energy transfer models of the key components of the system were established to explore the energy characteristic state transition rule. Second, a power bond diagram model was built, its state equation and state matrix were deduced, and a system simulation model was built. Finally, combined with the EHSPCS experimental platform, simulation experiments were carried out on the dynamic position following and steady-state position holding conditions of the system, and the variation rules of the power of each energy characteristic state and the system energy transfer efficiency under different loads were obtained. The research results provide a foundation for the study of power matching and energy-saving mechanism of the EHSPCS.

Suggested Citation

  • Mingkun Yang & Gexin Chen & Jianxin Lu & Cong Yu & Guishan Yan & Chao Ai & Yanwen Li, 2021. "Research on Energy Transmission Mechanism of the Electro-Hydraulic Servo Pump Control System," Energies, MDPI, vol. 14(16), pages 1-17, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:4869-:d:611351
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    References listed on IDEAS

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    1. Guishan Yan & Zhenlin Jin & Mingkun Yang & Bing Yao, 2021. "The Thermal Balance Temperature Field of the Electro-Hydraulic Servo Pump Control System," Energies, MDPI, vol. 14(5), pages 1-24, March.
    2. Bo Yu & Shuai Wu & Zongxia Jiao & Yaoxing Shang, 2018. "Multi-Objective Optimization Design of an Electrohydrostatic Actuator Based on a Particle Swarm Optimization Algorithm and an Analytic Hierarchy Process," Energies, MDPI, vol. 11(9), pages 1-15, September.
    3. Qu, Shaoyang & Fassbender, David & Vacca, Andrea & Busquets, Enrique, 2021. "A high-efficient solution for electro-hydraulic actuators with energy regeneration capability," Energy, Elsevier, vol. 216(C).
    4. Minh Tri Nguyen & Tri Dung Dang & Kyoung Kwan Ahn, 2019. "Application of Electro-Hydraulic Actuator System to Control Continuously Variable Transmission in Wind Energy Converter," Energies, MDPI, vol. 12(13), pages 1-19, June.
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