新型双电容三相感应电机单相运行定子三维温度场研究  

Three-Dimensional Temperature Field Investigation of Stator in Single-Phase Operation of Novel Dual-Capacitor Three-Phase Induction Motor

作　　者：崔效源 赵国新[1] 张鹏 赵欣媛 CUI Xiaoyuan;ZHAO Guoxin;ZHANG Peng;ZHAO Xinyuan(School of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870

出　　处：《微特电机》2024年第9期6-11,共6页Small & Special Electrical Machines

基　　金：国家自然科学基金项目(51407119)。

摘　　要：由于新型双电容三相感应电机单相运行在非额定工况下时,三相绕组电流将不再对称,为了保证电机的稳定长期运行,需要对新接法进行稳态温度场的计算与分析。对三相感应电机定子建立三维传热模型,通过有限元法对其在额定运行、轻载和重载条件下进行温度场研究;为验证该方法的正确性和有效性,对电机进行温升试验,试验结果与仿真结果相吻合。结果表明,新型接法在轻载与重载条件下发热严重,但温度并未超过电机绝缘材料最大允许温度,但在额定运行时发热与三相对称运行接近。Due to the operation of the novel single-phase running of a dual-capacitor three-phase induction motor under non-rated conditions,the three-phase winding currents will no longer be symmetrical.To ensure the stable long-term operation of the motor,it is necessary to calculate and analyze the steady-state temperature field of the new connection method.A three-dimensional heat transfer model of the stator of the three-phase induction motor was established,and finite element method was used to study the temperature field under rated,light load,and heavy load conditions.To verify the correctness and effectiveness of this method,temperature rise tests were conducted on the motor,and the test results were in good agreement with the simulation results.The results indicate that the new connection method results in significant heating under light and heavy load conditions,but the temperature does not exceed the maximum allowable temperature of the motor insulation material.However,the heating during rated operation is close to that of three-phase symmetrical operation.

关 键 词：三相感应电机 单相运行 温度场 定子 有限元法 

分 类 号：TM343[电气工程—电机]