Numerical simulation and analysis of contact thermal resistance on motor controller based on Matlab

This paper builds a numerical model of calculating the contact thermal resistance between IGBT and cooling substrate in drive-motor controller. And it analyses the influence degree of four factors on contact thermal resistance based on the model: the substrate material, the pressure, the surface rou...

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Bibliographic Details
Published in2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific) pp. 1 - 4
Main Authors Lv Guangyao, Dong Yugang, Zhang Chengning, Pan Liwen
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2014
Subjects
contact thermal resistance
drive-motor controller
influence factor
numerical simulation
Rough surfaces
Substrates
Surface resistance
Surface roughness
Thermal resistance
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Summary:This paper builds a numerical model of calculating the contact thermal resistance between IGBT and cooling substrate in drive-motor controller. And it analyses the influence degree of four factors on contact thermal resistance based on the model: the substrate material, the pressure, the surface roughness and the filling radiating material. As the core element in drive-motor controller, the heat radiation of IGBT is the most important problem, and the contact thermal resistance is a large part of thermal resistance. In order to reduce the resistance, which factor influences it largest must be known. A simulation is made to compare the influence of each factor based on MATLAB, which shows the factors should be thought by turns: the filling radiating material, he surface roughness, the pressure then the substrate material.
DOI:10.1109/ITEC-AP.2014.6940623