Chinese Journal of Ship Research, Volume. 16, Issue 5, 244(2021)

Analysis and evaluation of marine motor cooling system

Jun WANG, Hongdong WANG, Jianyao WANG, Jian WANG, Xiaofeng LIANG, and Hong YI
Author Affiliations
  • Key Laboratory of Marine Intelligent Equipment and System Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
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    Figures & Tables(23)
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    • Table 1. Basic design parameters of motor

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      Table 1. Basic design parameters of motor

      参数数值
      额定功率/ kW15
      转子极数/个4
      定子槽数/个15
      转子外径/ mm54
      定子外径/ mm96
      永磁体厚度/ mm4
      气隙厚度/ mm3
      铁芯长度/ mm100
      绕组长度/ mm120
      机壳长度/ mm265
    • Table 2. The thermal loss of motor

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      Table 2. The thermal loss of motor

      电机部件损耗/W
      定子绕组750
      定子铁芯250
      转子机械损耗75
    • Table 3. The thermal conductivity of motor

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      Table 3. The thermal conductivity of motor

      部件导热系数/(W∙m−1∙K−1)
      x方向 y方向 z方向(轴向)
      机壳464646
      定子绕组380380380
      定子铁芯46465
      转子46465
      气隙0.0870.0870.087
      永磁体999
    • Table 4. Convective heat transfer coefficients at air gap

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      Table 4. Convective heat transfer coefficients at air gap

      表面对流散热系数/(W∙m−2∙K−1)
      转子外表面77
      定子内表面14.2
    • Table 5. Comparsion between the test values and the simulation values of the motor temperature

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      Table 5. Comparsion between the test values and the simulation values of the motor temperature

      电机部位试验值T0/℃ Icepak有限元仿真结果热路法计算结果[16]
      T1/℃ T0偏差/% T2/℃ T0偏差/%
      绕组端部137.8140.1−1.7132.43.9
      机壳出水口6870.2−3.2662.9
    • Table 6. Extreme temperatures and positions of each component

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      Table 6. Extreme temperatures and positions of each component

      水套形式水套转子定子机壳
      最高温度/℃位置最高温度/℃位置最高温度/℃位置最高温度/℃位置
      轴向37.9出口74.9中部39.8环向靠近水道出口处48.9端部中央
      螺旋36.5出口74.5中部38.3轴向靠近水道出口处48.8端部中央
      环形36出口74.1中部38.4轴向靠近水道出口处48.5端部中央
    • Table 7. Evaluation of heat dissipation effect of different water jacket forms

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      Table 7. Evaluation of heat dissipation effect of different water jacket forms

      散热效果评价条目 水套形式
      轴向螺旋环形
      机壳冷却★★★★★
      定子冷却★★★★
      转子冷却
      轴向温度梯度★★
      环向温度梯度★★★★★
      径向温度梯度
      总分★×7★×9★×11
    • Table 8. Comparison of extreme temperatures and decrease values for three schemes of water-cooling system

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      Table 8. Comparison of extreme temperatures and decrease values for three schemes of water-cooling system

      冷却系统转子定子机壳
      最高温度/℃温度下降值/℃最高温度/℃温度下降值/℃最高温度/℃温度下降值/℃
      环形水套(原始方案)74.138.448.5
      方案134.839.3353.434.414.1
      方案234.739.434.93.534.314.2
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    Jun WANG, Hongdong WANG, Jianyao WANG, Jian WANG, Xiaofeng LIANG, Hong YI. Analysis and evaluation of marine motor cooling system[J]. Chinese Journal of Ship Research, 2021, 16(5): 244

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    Paper Information

    Category: Marine Machinery, Electrical Equipment and Automation

    Received: Jul. 8, 2020

    Accepted: --

    Published Online: Mar. 28, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.02028

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