Affiliations: [a] School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China | [b] School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China
Correspondence:
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Corresponding author: Haijun Zhuang, School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China. E-mail: ts18130090a31@cumt.edu.cn
Abstract: Due to use of cans in the airgap, the eddy current induction occurs and generates can loss. The loss on cans is considerably high and leads to excessive temperature rise of a canned motor, a fast and accurate temperature is necessary. In this paper, a compensation element assisted thermal model is proposed and stressed, due to the inaccuracy of tradition thermal network model. First, the studied canned motor is described. Second, the thermal analysis principle is studied. Then, the novel thermal network model with compensation element is studied, with thermal resistance calculation. Finally, compare motor temperature that is measured by thermal network model and finite element (FE). FE is used as reference and complement.
Keywords: Thermal analysis, lumped parameter thermal network, compensation elements, canned permanent magnet machine, can loss
