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Investigation of the Cooling and Thermal-Measuring System of a Compound-Structure Permanent-Magnet Synchronous Machine

Author

Listed:
  • Jingang Bai

    (Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China)

  • Yong Liu

    (Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China)

  • Yi Sui

    (Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China)

  • Chengde Tong

    (Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China)

  • Quanbin Zhao

    (Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China)

  • Jiawei Zhang

    (Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, Heilongjiang, China)

Abstract

The compound-structure permanent-magnet synchronous machine (CS-PMSM) is a power-split device which can enable the internal combustion engine (ICE) to operate at optimum efficiency during all driving conditions by controlling its torque and speed. However, the CS-PMSM has more serious temperature rise and heat dissipation problems than conventional permanent-magnet (PM) machines, especially when the CS-PMSM is running at low speed and under full load conditions. As the thermal resistance of double-layer air gaps is quite big, the hot spot proves to be in the inner winding rotor. To ensure the safe operation of the CS-PMSM, the use of forced-air and water cooling in the inner winding rotor are investigated. The study shows that the water cooling can provide a better cooling effect, but require a complicated mechanical structure. Considering the complexity of the high efficiency cooling system, a real-time temperature monitoring method is proposed and a temperature measuring system which can accurately measure the real-time temperature of multiple key points in the machine is developed to promptly adjust the operating and cooling conditions based on the measured temperature results. Finally, the temperature rise experiment of the CS-PMSM prototype is done and the simulation results are partly validated by the experimental data.

Suggested Citation

  • Jingang Bai & Yong Liu & Yi Sui & Chengde Tong & Quanbin Zhao & Jiawei Zhang, 2014. "Investigation of the Cooling and Thermal-Measuring System of a Compound-Structure Permanent-Magnet Synchronous Machine," Energies, MDPI, vol. 7(3), pages 1-34, March.
    • Handle: RePEc:gam:jeners:v:7:y:2014:i:3:p:1393-1426:d:33835
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    References listed on IDEAS

    as
    1. Ping Zheng & Chengde Tong & Jingang Bai & Yi Sui & Zhiyi Song & Fan Wu, 2012. "Magnetic Decoupling Design and Experimental Validation of a Radial-Radial Flux Compound-Structure Permanent-Magnet Synchronous Machine for HEVs," Energies, MDPI, vol. 5(10), pages 1-13, October.
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    Cited by:

    1. Jing Zhao & Zhongxin Gu & Bin Li & Xiangdong Liu & Xiaobei Li & Zhen Chen, 2015. "Research on the Torque and Back EMF Performance of a High Speed PMSM Used for Flywheel Energy Storage," Energies, MDPI, vol. 8(4), pages 1-22, April.
    2. Bin Yu & Shukuan Zhang & Jidong Yan & Luming Cheng & Ping Zheng, 2015. "Thermal Analysis of a Novel Cylindrical Transverse-Flux Permanent-Magnet Linear Machine," Energies, MDPI, vol. 8(8), pages 1-23, July.
    3. Chengde Tong & Zhiyi Song & Jingang Bai & Jiaqi Liu & Ping Zheng, 2016. "Analytical Investigation of the Magnetic-Field Distribution in an Axial Magnetic-Field-Modulated Brushless Double-Rotor Machine," Energies, MDPI, vol. 9(8), pages 1-23, July.
    4. Xuan Wu & Hui Wang & Shoudao Huang & Keyuan Huang & Li Wang, 2015. "Sensorless Speed Control with Initial Rotor Position Estimation for Surface Mounted Permanent Magnet Synchronous Motor Drive in Electric Vehicles," Energies, MDPI, vol. 8(10), pages 1-17, October.
    5. Jing Zhao & Wei Liu & Bin Li & Xiangdong Liu & Congzhe Gao & Zhongxin Gu, 2015. "Investigation of Electromagnetic, Thermal and Mechanical Characteristics of a Five-Phase Dual-Rotor Permanent-Magnet Synchronous Motor," Energies, MDPI, vol. 8(9), pages 1-31, September.

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