COMPUTATION AND EXPERIMENT OF THE EDDY CURRENT LOSSES IN CANNED MOTOR
Induced eddy currents in can cause losses when the canned motor runs.The losses lead to the motors temperature rise, which directly affects the canned motor pump and the entire transmission system security.Empirical formula estimates eddy current losses which has a big error is difficult to meet the engineering requirements.For the canned motor with Hastelloy-C alloy or Sus316L cans, electromagnetic field is analyzed and can losses are calculated using a finite element method in Ansoft.The paper developed four prototypes, and obtained the experimental value of can losses via simple no-load experiment by the loss separation method.The results show that the accuracy of FEM is higher accurately than empirical formula compared with simulation value.Analysis shows that dimension of a model and can material characteristic parameters such as the resistivity have influence on the calculated error of FEM.The paper proposes to correct the error in the case of considering can material characteristic parameters.
Canned motor the eddy current losses Finite element method (FEM) Loss separation
YUEJUN AN GUOMING LIU CHUNYE GUO LIPING XUE YONG LI
Shenyang University of Technology School of Electrical Engineering 110870 Shenyang,China
国际会议
3rd International Conference on Mechanical and Electrical Technology(ICMET2011) (2011第三届机械与电气技术国际会议)
大连
英文
713-717
2011-08-26（万方平台首次上网日期，不代表论文的发表时间）