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Dynamics of Electromechanical Systems Containing Long Elastic Couplings and Safety of Their Operation

Author

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  • Andrzej Popenda

    (Faculty of Electrical Engineering, Czestochowa University of Technology, 42-201 Czestochowa, Poland)

  • Andrzej Szafraniec

    (Faculty of Transport, Electrical Engineering and Computer Science, University of Technology and Humanities, 26-600 Radom, Poland)

  • Andriy Chaban

    (Faculty of Transport, Electrical Engineering and Computer Science, University of Technology and Humanities, 26-600 Radom, Poland)

Abstract

The electromechanical systems under analysis include electric drives, working machines that perform specific tasks in the technological process, and working mechanisms that transmit mechanical power between the electric drive and the working machine. The vast majority of electric motors included in drive systems require rotational speed control. This task is most often performed with the use of closed-loop control structures based on speed controllers. A step or overly rapid change in the speed reference causes a temporary lock of the speed controller due to the applied limitations at its output. Particularly, unfavorable effects of such a lock can be observed in drive systems in which there is a long elastic coupling (transmission shaft) between the electric motor and the working machine. As a consequence, shaft torsion and accompanying twisting moments of considerable amplitudes appear. This article proposes an uncomplicated active torque limiter structure, which enables the uninterrupted operation of the speed controller thanks to the automatic adaptation of the rate of the speed reference change to any moment of inertia of the rotor and attached rotating masses. The results of the investigations confirm the effectiveness of the proposed structure.

Suggested Citation

  • Andrzej Popenda & Andrzej Szafraniec & Andriy Chaban, 2021. "Dynamics of Electromechanical Systems Containing Long Elastic Couplings and Safety of Their Operation," Energies, MDPI, vol. 14(23), pages 1-18, November.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:23:p:7882-:d:686893
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    References listed on IDEAS

    as
    1. Andriy Lozynskyy & Andriy Chaban & Tomasz Perzyński & Andrzej Szafraniec & Lidiia Kasha, 2021. "Application of Fractional-Order Calculus to Improve the Mathematical Model of a Two-Mass System with a Long Shaft," Energies, MDPI, vol. 14(7), pages 1-15, March.
    2. Andrzej Popenda & Marek Lis & Marcjan Nowak & Krzysztof Blecharz, 2020. "Mathematical Modelling of Drive System with an Elastic Coupling Based on Formal Analogy between the Transmission Shaft and the Electric Transmission Line," Energies, MDPI, vol. 13(5), pages 1-14, March.
    3. Gabriel Ekemb & Fouad Slaoui-Hasnaoui & Joseph Song-Manguelle & P. M. Lingom & Issouf Fofana, 2021. "Instantaneous Electromagnetic Torque Components in Synchronous Motors Fed by Load-Commutated Inverters," Energies, MDPI, vol. 14(11), pages 1-25, May.
    4. Andriy Chaban & Zbigniew Łukasik & Andrzej Popenda & Andrzej Szafraniec, 2021. "Mathematical Modelling of Transient Processes in an Asynchronous Drive with a Long Shaft Including Cardan Joints," Energies, MDPI, vol. 14(18), pages 1-17, September.
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    Cited by:

    1. Stelian Alaci & Ioan Doroftei & Florina-Carmen Ciornei & Ionut-Cristian Romanu & Ioan Alexandru Doroftei, 2022. "The Kinematics of a Bipod R2RR Coupling between Two Non-Coplanar Shafts," Mathematics, MDPI, vol. 10(16), pages 1-25, August.
    2. Andriy Chaban & Tomasz Perzyński & Andrzej Popenda & Radosław Figura & Vitaliy Levoniuk, 2022. "Mathematical Modeling of Transient Processes in the Susceptible Motion Transmission in a Ship Propulsion System Containing a Shaft Synchronous Generator," Energies, MDPI, vol. 15(9), pages 1-17, April.

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