电力电子装置强风散热模型简化方法及应用  

Simplification method and application of thermal model offorced air cooling system for power electronic device

作　　者：林弘毅 郭潇 伍梁 陈国柱[1] LIN Hong-yi;GUO Xiao;WU Liang;CHEN Guo-zhu(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2021年第6期1159-1167,共9页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学基金资助项目(51777186).

摘　　要：为了提高热设计的设计效率,基于热传导、流体换热、流体力学理论,对典型强迫风冷散热系统进行精确建模,对精确模型进行简化方法的研究.使用该简化热模型,可以对强迫风冷散热系统进行快速、准确的设计.采用该简化热模型设计的380 V/50 kVar SiC-MOSFET静止无功补偿器(SVG)的工业化样机,散热器表面温升误差为4.1℃(满载条件),满足工程化设计的要求.The accurate thermal model of the typical forced air cooling system was proposed based on the theory of heat conduction,fluid heat transfer and fluid mechanics in order to improve the design efficiency of thermal design.A simplified thermal model was proposed based on the accurate thermal model.The forced air cooling system can be quickly and accurately designed by the simplified thermal model.The simplified thermal model with the advantages of small calculation amount and high design efficiency was applied to the thermal design of 380 V/50 kVar SiC-MOSFET static var generator(SVG).The surface temperature rise error of the SVG heatsink designed by the simplified model was 4.1℃(full load condition),which meeted the requirements of engineering design.

关 键 词：散热器设计 简化热模型 强迫风冷 静止无功补偿器(SVG) 

分 类 号：TM762[电气工程—电力系统及自动化] O551[理学—热学与物质分子运动论]