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Mitigating Mode Switching Oscillation in a One-Motor-One-Pump Motor-Controlled Hydraulic Cylinder via System Pressure Control: Simulation Study

Author

Listed:
  • Wei Zhao

    (Department of Engineering Sciences, University of Agder, 4879 Grimstad, Norway)

  • Morten Kjeld Ebbesen

    (Department of Engineering Sciences, University of Agder, 4879 Grimstad, Norway)

  • Michael Rygaard Hansen

    (Department of Engineering Sciences, University of Agder, 4879 Grimstad, Norway)

  • Torben Ole Andersen

    (Department of Energy Technology, Aalborg University, 9220 Aalborg East, Denmark)

Abstract

This study focuses on a hydraulic cylinder that is directly connected to a fixed-displacement hydraulic pump driven by an electric servo motor. This particular setup is referred to as a one-motor-one-pump motor-controlled hydraulic cylinder (MCC). This paper presents a new approach to address mode switching oscillation (MSO) in MCCs by incorporating system pressure control capabilities. It conducts a detailed investigation into the factors that contribute to MSO in standard MCCs and thoroughly evaluates the effectiveness of the proposed system in mitigating MSO. The simulation results demonstrate the successful suppression of MSO. In conclusion, the proposed MCC with system pressure control capabilities is validated and, furthermore, it shows great potential for practical applications involving small loads and rapid retraction.

Suggested Citation

  • Wei Zhao & Morten Kjeld Ebbesen & Michael Rygaard Hansen & Torben Ole Andersen, 2024. "Mitigating Mode Switching Oscillation in a One-Motor-One-Pump Motor-Controlled Hydraulic Cylinder via System Pressure Control: Simulation Study," Energies, MDPI, vol. 17(24), pages 1-16, December.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:24:p:6334-:d:1544823
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    References listed on IDEAS

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    1. Samuel Kärnell & Liselott Ericson, 2022. "Hysteresis Control in Pump-Controlled Systems—A Way to Reduce Mode-Switch Oscillations in Closed and Open Circuits," Energies, MDPI, vol. 15(2), pages 1-22, January.
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