Abstract：The cooling optimization design is a crucial part of a power electronics building block (PEBB) unit. A better heat dissipation system increases power intensity of PEBB and keeps insulated gate bipolar transistor (IGBT) modules on well operation. In this paper, power loss of IGBT modules in the PEBB unit is calculated in detail. Thermal simulation on a design example of the PEBB unit is analyzed by the computational fluid dynamics (CFD) software named ICEPAK. By changing structural parameters of the heatsink in the PEBB unit, the influence of parameters on heat transfer performance is obtained. Then the paper presents a structural optimization scheme of the heatsink through a curve fitting and extreme value seeking analysis. Finally the feasibility of thermal simulation is verified by comparing simulation results with experimental data, and the directive significance of the simulation on system-level thermal optimization design is proved.
陈国栋, 刘宏, 王江涛. 基于曲线拟合的PEBB单元散热优化设计[J]. 电工技术学报, 2016, 31(4): 71-78.
Chen Guodong, Liu Hong, Wang Jiangtao. Thermal Analysis and Optimization of PEBB Unit Based on Curve Fitting. Transactions of China Electrotechnical Society, 2016, 31(4): 71-78.
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