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High-Power Induction Motors Supplied with Voltage Containing Subharmonics

Author

Listed:
  • Piotr Gnaciński

    (Department of Ship Electrical Power Engineering, Faculty of Marine Electrical Engineering, Gdynia Maritime University, 81-225 Gdynia, Poland)

  • Piotr Klimczak

    (Diagnostic and Service of Electrical Motors Department, Zakład Maszyn Elektrycznych “EMIT” Cantoni Group, 99-320 Żychlin, Poland)

Abstract

In some power networks, components of frequency less than the frequency of the fundamental voltage harmonic called subharmonics or subsynchronous interharmonics occur. In this paper, the effect of voltage subharmonics on currents, power losses, speed fluctuations and electromagnetic torque is examined. The results of numerical computations using the finite element method for an induction cage motor of rated power of 5.6 MW and four motors of rated power of 200 kW with different numbers of poles are presented. An extraordinary harmful effect on high-power induction motors is demonstrated. Among other effects, voltage subharmonics cause significant torque pulsations whose frequencies may correspond to the elastic-mode natural frequency. Possible resonance can result in excessive torsional vibration and the destruction of a power train.

Suggested Citation

  • Piotr Gnaciński & Piotr Klimczak, 2020. "High-Power Induction Motors Supplied with Voltage Containing Subharmonics," Energies, MDPI, vol. 13(22), pages 1-15, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:22:p:5894-:d:443643
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    References listed on IDEAS

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    1. Zhiping Wen & Shutao Peng & Jing Yang & Jun Deng & Hanqing He & Tong Wang, 2019. "Analysis of the Propagation Characteristic of Subsynchronous Oscillation in Wind Integrated Power System," Energies, MDPI, vol. 12(6), pages 1-16, March.
    2. Guang-Long Xie & Bu-Han Zhang & Yan Li & Cheng-Xiong Mao, 2013. "Harmonic Propagation and Interaction Evaluation between Small-Scale Wind Farms and Nonlinear Loads," Energies, MDPI, vol. 6(7), pages 1-26, July.
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    Cited by:

    1. Piotr Gnaciński & Damian Hallmann & Piotr Klimczak & Adam Muc & Marcin Pepliński, 2021. "Effects of Voltage Interharmonics on Cage Induction Motors," Energies, MDPI, vol. 14(5), pages 1-13, February.
    2. Piotr Gnaciński & Damian Hallmann & Adam Muc & Piotr Klimczak & Marcin Pepliński, 2022. "Induction Motor Supplied with Voltage Containing Symmetrical Subharmonics and Interharmonics," Energies, MDPI, vol. 15(20), pages 1-24, October.
    3. Alberto Gudiño-Ochoa & Jaime Jalomo-Cuevas & Jesús Ezequiel Molinar-Solís & Raquel Ochoa-Ornelas, 2023. "Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers," Energies, MDPI, vol. 16(14), pages 1-26, July.
    4. Piotr Gnaciński & Damian Hallmann & Piotr Klimczak & Adam Muc & Marcin Pepliński, 2022. "Effects of Negative Sequence Voltage Subharmonics on Cage Induction Motors," Energies, MDPI, vol. 15(23), pages 1-13, November.

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