铜转子三相异步电动机温度场流场耦合分析
发布时间:2018-10-29 21:49
【摘要】:研发了一台应用在石油顶驱钻井设备的强迫风冷铜转子三相异步电机,首创了无机座设计、定子铁心轭部开通风孔、定子绕组端部环氧树脂密封、采用焊接铜条鼠笼转子等关键技术,满足了电机在频繁起停、过载、盐雾等工况下,对电机温升的苛刻要求。建立了温度场流场流固耦合模型,分析了电机额定负载工况下的各零件稳态温度分布以及瞬态温度随时间变化趋势。仿真计算和温升试验结果表明,沿电机的轴线方向,中后段位置温度较高,没有局部过热点。试验验证了建立的温度场流场耦合模型和仿真结果的合理性,温升满足电机H级要求。在耦合模型的基础上,分析了风道入口压力和定子铁心通风孔径变化对电机温升的影响,为改进电机冷却结构提供理论基础。
[Abstract]:A forced air-cooled copper rotor three-phase asynchronous motor used in oil top drive drilling equipment was developed. The inorganic seat design was first created. The stator core yoke was ventilated and the end of stator winding was sealed with epoxy resin. The welding copper bar squirrel cage rotor and other key technologies are adopted to meet the harsh requirements of motor temperature rise under the condition of frequent starting and stopping overload salt spray and so on. The fluid-solid coupling model of temperature field is established, and the steady state temperature distribution and transient temperature variation trend of each part under rated load condition are analyzed. The results of simulation and temperature rise test show that along the axis of the motor, the temperature in the middle and rear section is higher and there is no local over-hot spot. The temperature field coupling model and the simulation results are proved to be reasonable, and the temperature rise meets the requirements of the H class of the motor. Based on the coupling model, the influence of inlet pressure and stator core ventilation aperture on the temperature rise of the motor is analyzed, which provides a theoretical basis for improving the cooling structure of the motor.
【作者单位】: 西安交通大学机械工程学院;青岛海西电机有限公司;
【基金】:国家自然科学基金资助项目(51405374)
【分类号】:TM343.2
,
本文编号:2298928
[Abstract]:A forced air-cooled copper rotor three-phase asynchronous motor used in oil top drive drilling equipment was developed. The inorganic seat design was first created. The stator core yoke was ventilated and the end of stator winding was sealed with epoxy resin. The welding copper bar squirrel cage rotor and other key technologies are adopted to meet the harsh requirements of motor temperature rise under the condition of frequent starting and stopping overload salt spray and so on. The fluid-solid coupling model of temperature field is established, and the steady state temperature distribution and transient temperature variation trend of each part under rated load condition are analyzed. The results of simulation and temperature rise test show that along the axis of the motor, the temperature in the middle and rear section is higher and there is no local over-hot spot. The temperature field coupling model and the simulation results are proved to be reasonable, and the temperature rise meets the requirements of the H class of the motor. Based on the coupling model, the influence of inlet pressure and stator core ventilation aperture on the temperature rise of the motor is analyzed, which provides a theoretical basis for improving the cooling structure of the motor.
【作者单位】: 西安交通大学机械工程学院;青岛海西电机有限公司;
【基金】:国家自然科学基金资助项目(51405374)
【分类号】:TM343.2
,
本文编号:2298928
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