转子槽口深度和槽配合对异步电机转子损耗的影响

为了分析转子槽口深度及定转子槽配合对三相变频调速异步电动机转子损耗的影响,采用ANSYS Maxwell软件对1台空载损耗异常的10极、1 100 kW三相变频调速异步电动机转子损耗进行详细分析。通过建立不同转子槽口深度和定转子槽配合的电机模型,结合电机内谐波磁场的理论,对比分析了不同槽口深度和定转子槽配合的电机模型转子铁心与转子导条中的损耗。根据仿真分析结果,对该样机进行改进设计。样机试验结果表明仿真计算的正确性,可为相关电机的设计提供参考。

Influence of Rotor Slot Opening Depth and Slot Combination onAsynchronous Motor Rotor Loss

In order to analyze the influence of rotor slot opening depth and slot combination on the rotor loss of threephase variable frequency asynchronous motor, ANSYS Maxwell was used to analyze the rotor loss of a 10pole 1 100 kW threephase variable frequency speedvariable induction motor with abnormal noload loss. Motor models with different rotor slot opening depths and slot combinations were built. In combination with the theory of harmonic magnetic field in the motor, the losses of rotor cores and rotor bars of the motor models with different rotor slot opening depths and slot combinations were compared and analyzed. According to the results of simulation analysis, the prototype was improved. The results of the prototype test proved the correctness of the simulation calculation, which could provide reference for the design of the relevant motor.