笼型实心转子屏蔽感应电机电磁场及参数研究(四):等效电路参数有限元计算法及验证

Parameters Determination and Electromagnetic Field Analysis of Canned Solid-Rotor Induction Motor(4): Equivalent Parameters Calculation by Finite Element Method and Its Verification

该文利用时谐电磁场有限元法对笼型实心转子屏蔽感应电机电磁场进行分析研究,根据冻结磁导率法、傅里叶分析法、矢量图法分析得到了定子侧等效阻抗参数提取法;利用坡印廷矢量法求解得到了适用于多种复杂转子结构的感应电机的等效电路参数分析法。将该方法计算得到的等效阻抗参数代入几种典型转子结构感应电机的等效电路进行计算。其中,笼型实心转子屏蔽感应电机(CSRIM)采用文献[1]建立的简化等效电路模型以及文献[2]提出的实用等效电路模型。最后,将计算结果与有限元电磁场计算结果、样机实测结果进行了对比验证。

As the last paper of series,this paper propose a research on electromagneitc field of canned solid-rotor induction motor(CSRIM)using time-harmonic finite element analysis(FEA).The equivalent parameters analysis method of stator side is built by frozen permeability method,fourier analysis and vector graph.The poynting vector is used to calculate rotor equivalent parameters with complex structure.Then,operating performances of motor are calculated by equivalent circuit method.The equivalent circuit of CSRIM are the simplified equivalent circuit built in second paper and the practical equivalent circuit derived in the third paper of series.Finally,calculation results are compared with the calculation result of finite element analysis,and also the test result.