Thermal Analysis using Thermal Equivalent Circuit Analysis and Finite Element Method of In-wheel Motor

In-wheel 전동기의 열 등가회로 해석 및 유한요소해법을 이용한 열해석

A thermal equivalent circuit of IPMSM considering eddy current loss of PM and core loss of rotor is proposed. This thermal equivalent model is represented by the thermal resistances and thermal capacitances. In order to determine the factor of each parameter, a heating test is processed. Additionally, the eddy current loss of PM is calculated by a transient 3D finite element analysis. Finally, this thermal equivalent model is verified by a temperature test in a 25kW 12-pole/18-slot IPMSM with varying load.