Thermal Resistance Analysis and Simulation of IGBT Module with High Power Density

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As the IGBT power modules have promising potentials in the application of the field of traction or new energy, the higher power density and higher current rating of the IGBT module become more and more attractive. Thermal resistance is one of the most important characteristics in the application of power semiconductor module. A new 1500A/3300V IGBT module in traction application is developed successfully by Zhuzhou CSR Times Electric Co., Ltd (Lincoln). Thermal resistance management of this IGBT module with high power density is performed in this paper. Based on thermal nodes network, an equivalent circuit model for thermal resistance of power module is highlighted from which the steady state thermal resistance can be optimized by theoretical analysis. Furthermore, thermal numerical simulation of 1500A/3300V IGBT module is accomplished by means of finite element model (FEM). Finally, the thermal equivalent model of the IGBT module is verified by simulation results.

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Edited by:

Yun-Hae Kim and Prasad Yarlagadda

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1902-1907

Citation:

Y. B. Wu et al., "Thermal Resistance Analysis and Simulation of IGBT Module with High Power Density", Applied Mechanics and Materials, Vols. 303-306, pp. 1902-1907, 2013

Online since:

February 2013

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$41.00

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