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Starting Pulse Vibration Torque Analysis of Aviation Variable Frequency Asynchronous Motor Based on Low-Frequency Step-Down Starting Methods

Author

Listed:
  • Zheng Cao

    (School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China)

  • Yuanjun Zhou

    (School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China)

  • Na Wang

    (Engineering Training Center, Beihang University, Beijing 100191, China)

Abstract

The more electric aircraft provides 115 V/360~800 Hz variable frequency power supply for the variable frequency asynchronous motor, and the motor operation characteristics change with the power frequency variation. It causes the starting pulse vibration torque with the low-frequency power supply (360 Hz) to increase greatly and the mechanical shock and fatigue damage. Therefore, this paper proposes step-down starting method with the low-frequency power supply. Based on the electromagnetic principles generated by the starting pulse vibration torque, this paper uses a novel method of simulation data fitting to establish an approximate model of the starting pulse vibration torque. The parameter design formulas of the low-frequency step-down starting methods, including the reducing voltage, the series resistance, and the series inductance are proposed. The effectiveness of the different methods are verified, and the performance is compared through the simulation. The experimental verification of a small power asynchronous motor is completed. The simulation and experiment results show that the low-frequency step-down starting methods effectively reduce the starting peak torque, and also suppress the shock impact of starting current on the power supply.

Suggested Citation

  • Zheng Cao & Yuanjun Zhou & Na Wang, 2020. "Starting Pulse Vibration Torque Analysis of Aviation Variable Frequency Asynchronous Motor Based on Low-Frequency Step-Down Starting Methods," Energies, MDPI, vol. 13(6), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:6:p:1337-:d:332168
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    References listed on IDEAS

    as
    1. Jan Mróz & Wojciech Poprawski, 2019. "Improvement of the Thermal and Mechanical Strength of the Starting Cage of Double-Cage Induction Motors," Energies, MDPI, vol. 12(23), pages 1-13, November.
    2. Weilin Li & Yang Yang & Xiaobin Zhang, 2018. "Digital Generator Control Unit Design for a Variable Frequency Synchronous Generator in MEA," Energies, MDPI, vol. 11(1), pages 1-17, January.
    3. Xiancheng Zheng & Fei Gao & Husan Ali & Huamei Liu, 2017. "A Droop Control Based Three Phase Bidirectional AC-DC Converter for More Electric Aircraft Applications," Energies, MDPI, vol. 10(3), pages 1-17, March.
    4. Ying Xie & Cheng Pi & Zhiwei Li, 2019. "Study on Design and Vibration Reduction Optimization of High Starting Torque Induction Motor," Energies, MDPI, vol. 12(7), pages 1-15, April.
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