Simulation Study on Heat Dissipation Enhancement Characteristics of Axial and Radial Mixed Ventilation Structure for Medium-sized High-voltage Motor

PENG Deqi; ZHOU Xiaohui; YAN Caisong; LI Guang

doi:10.13433/j.cnki.1003-8728.20200611

Volume 42 Issue 1

Jan. 2023

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Article Navigation > Mechanical Science and Technology for Aerospace Engineering > 2023 > 42(1): 75-82

PENG Deqi, ZHOU Xiaohui, YAN Caisong, LI Guang. Simulation Study on Heat Dissipation Enhancement Characteristics of Axial and Radial Mixed Ventilation Structure for Medium-sized High-voltage Motor[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 75-82. doi: 10.13433/j.cnki.1003-8728.20200611

Citation:

PENG Deqi, ZHOU Xiaohui, YAN Caisong, LI Guang. Simulation Study on Heat Dissipation Enhancement Characteristics of Axial and Radial Mixed Ventilation Structure for Medium-sized High-voltage Motor[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 75-82. doi: 10.13433/j.cnki.1003-8728.20200611

Citation:

PENG Deqi, ZHOU Xiaohui, YAN Caisong, LI Guang. Simulation Study on Heat Dissipation Enhancement Characteristics of Axial and Radial Mixed Ventilation Structure for Medium-sized High-voltage Motor[J]. Mechanical Science and Technology for Aerospace Engineering, 2023, 42(1): 75-82. doi: 10.13433/j.cnki.1003-8728.20200611

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Simulation Study on Heat Dissipation Enhancement Characteristics of Axial and Radial Mixed Ventilation Structure for Medium-sized High-voltage Motor

doi: 10.13433/j.cnki.1003-8728.20200611

1.
School of Mechanical Engineering, Xiangtan University, Xiang′tan 411105, Hu′nan, China
2.
CRRC Zhuzhou Electric Co., Ltd., Zhuzhou 412000, Hu′nan, China

Received Date: 2021-04-22
Publish Date: 2023-01-25

Abstract

Abstract

The axial and radial mixed ventilation structure is adopted in order to improve the ventilation and cooling performance and reduce the operating temperature rise of the motor. Taking a 400 kW medium-sized high voltage motor as an research object, the influence law of temperature rise of the integral motor under steady state condition is studied through magnetic-fluid-solid coupling simulation. The cooling effect of the ventilation structure is quantitatively evaluated by proposing temperature rise uniformity coefficient. The results show that the temperature rise distribution of mixed ventilation structure is more uniform, and the uniformity coefficient of temperature rise is 85.78% and 6.23% higher than that of axial ventilation structure in the inner and outer winding of motor, respectively. The influence of the height and number of radial air ducts on motor temperature rise is further studied. Cooling effect is the best when the height is 6 mm and the number of radial duct is 13.
- medium-sized high voltage motor,
- magnetic-fluid-solid coupling,
- mixed ventilation structure,
- radial air duct,
- heat dissipation enhancement

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References(23)

References

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