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Influences of Control Parameters on Reduction of Energy Losses in Electrohydraulic Valve with Stepping Motors

Author

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  • Andrzej Milecki

    (Institute of Mechanical Technology, Poznan University of Technology, Pl. M. Skłodowskiej-Curie 5, 60-965 Poznań, Poland)

  • Jarosław Ortmann

    (Institute of Mechanical Technology, Poznan University of Technology, Pl. M. Skłodowskiej-Curie 5, 60-965 Poznań, Poland)

Abstract

In many heavy machines, the use of high force drives is required. For such tasks, electrohydraulic servo drives with proportional valves are used most often. In these valves, the proportional electromagnets are applied. If high precise control is additionally required, it is necessary to use expensive servo valves or precise stepping motors. In this paper, the application of a valve with one (or with two) stepping motors in the electrohydraulic servo drive is described. Such motors may work in a micro-step mode, which enables the precise positioning of the valve spool with low energy consumption. The control system structure that was used for positioning, consisting of such an electrohydraulic servo drive with a valve having stepping motors, is described. In the investigations, the following control parameters are considered: the number of stepping motors used, proportional gain coefficients, supply pressure, and desired step distance. The simulation model of the servo drive is proposed, enabling the investigations of energy consumption during the positioning process. In the investigations, the drive step responses are recorded and compared, taking into account the rise time and energy consumption. The overshot-free algorithm is used in the following step and tested in positioning tasks. The collected results of energy consumption of the drive during the positioning process are compared with other solutions.

Suggested Citation

  • Andrzej Milecki & Jarosław Ortmann, 2021. "Influences of Control Parameters on Reduction of Energy Losses in Electrohydraulic Valve with Stepping Motors," Energies, MDPI, vol. 14(19), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:19:p:6114-:d:643259
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    References listed on IDEAS

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    1. 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).
    2. Christoph Gradl & Rudolf Scheidl, 2017. "Performance of an Energy Efficient Low Power Stepper Converter," Energies, MDPI, vol. 10(4), pages 1-21, March.
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    Cited by:

    1. Dominik Rybarczyk & Andrzej Milecki, 2022. "The Use of a Model-Based Controller for Dynamics Improvement of the Hydraulic Drive with Proportional Valve and Synchronous Motor," Energies, MDPI, vol. 15(9), pages 1-19, April.

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