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Investigation of the Effect of the Voltage Drop and Cable Length on the Success of Starting the Line-Start Permanent Magnet Motor in the Drive of a Centrifugal Pump Unit

Author

Listed:
  • Aleksey Paramonov

    (Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, Russia)

  • Safarbek Oshurbekov

    (Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, Russia)

  • Vadim Kazakbaev

    (Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, Russia)

  • Vladimir Prakht

    (Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, Russia)

  • Vladimir Dmitrievskii

    (Department of Electrical Engineering, Ural Federal University, 620002 Yekaterinburg, Russia)

Abstract

The use of Line-Start Permanent Magnet Synchronous Motors (LSPMSM) improves the efficiency of conventional direct-on-line electric motor-driven fluid machinery such as pumps and fans. Such motors have increased efficiency compared to induction motors and do not have an excitation winding compared to classical synchronous motors with an excitation winding. However, LSPMSMs have difficulty in starting mechanisms with a high moment of inertia. This problem can be exacerbated by a reduced supply network voltage and a voltage drop on the cable. This article investigates the transients during the startup of an industrial centrifugal pump with a line-start permanent magnet synchronous motor. The simulation results showed that when the voltage on the motor terminals is reduced by 10%, the synchronization is delayed. The use of the cable also leads to a reduction in the voltage at the motor terminals in a steady state, but the time synchronization delay is more significant than that with a corresponding reduction in the supply voltage. The considered simulation example shows that the line-start permanent magnet synchronous motor has no problems with starting the pumping unit, even with a reduced supply voltage. The conclusions of this paper support a wider use of energy-efficient electric motors and can be used when selecting an electric motor to drive a centrifugal pump.

Suggested Citation

  • Aleksey Paramonov & Safarbek Oshurbekov & Vadim Kazakbaev & Vladimir Prakht & Vladimir Dmitrievskii, 2023. "Investigation of the Effect of the Voltage Drop and Cable Length on the Success of Starting the Line-Start Permanent Magnet Motor in the Drive of a Centrifugal Pump Unit," Mathematics, MDPI, vol. 11(3), pages 1-18, January.
    • Handle: RePEc:gam:jmathe:v:11:y:2023:i:3:p:646-:d:1048434
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    References listed on IDEAS

    as
    1. Sheng-Ching Wang & Yu-Cheng Nien & San-Ming Huang, 2022. "Multi-Objective Optimization Design and Analysis of V-Shape Permanent Magnet Synchronous Motor," Energies, MDPI, vol. 15(10), pages 1-16, May.
    2. Vadim Kazakbaev & Aleksey Paramonov & Vladimir Dmitrievskii & Vladimir Prakht & Victor Goman, 2022. "Indirect Efficiency Measurement Method for Line-Start Permanent Magnet Synchronous Motors," Mathematics, MDPI, vol. 10(7), pages 1-14, March.
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    Cited by:

    1. Wojciech Szelag & Cezary Jedryczka & Mariusz Baranski, 2024. "A New Method of Reducing the Inrush Current and Improving the Starting Performance of a Line-Start Permanent-Magnet Synchronous Motor," Energies, MDPI, vol. 17(5), pages 1-20, February.

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