Submersible screw pump permanent magnet motor works in the deep complex oil well. The thermal performance of the submersible screw pump permanent magnet motor was analyzed by establishing thermal network model. The temperature results of thermal network model and fluid-structure coupling method was compared. The good agreement between the two temperature results verified the effectiveness and correctness of the thermal network model.%潜油螺杆泵永磁电机长期运行在井下数千米,环境复杂. 结合潜油螺杆泵永磁电机样机设计的热性能分析,建立潜油螺杆泵永磁电机的热网络模型,开展电机热性能分析评估. 同时,热网络计算结果与流固耦合仿真结果比较吻合,验证了潜油螺杆泵永磁电机热网络模型的有效性和实用性.
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