高压大功率串级调速系统中斩波IGBT水冷散热系统的设计  

The Design of Water-Cooled Heat Sink for IGBT in DC Boost Chopping Module High Pressure High-power Cascade Speed Control System

作　　者：肖帅[1] 王钦若[1] 张卓[1] 彭义[1] 

机构地区：[1]广东工业大学自动化学院

出　　处：《变频器世界》2013年第4期85-88,81,共5页The World of Inverters

摘　　要：针对直流升压斩波模块中IGBT的散热问题,提出一种较为实用的IGBT功率损耗的计算方法,并针对该问题设计出一套工程实用的水冷散热系统。首先对其水冷散热系统的热路等效分析,由相似理论得到散热系统的整体热阻的求解公式。然后对冷媒温度变化进行分析,得到散热系统内的热阻分配规律。最后得到水冷散热系统的一、二次冷却结构的有效的参数设计方法。以DYNEX的DIM800ECM33-F000型IGBT的水冷散热系统设计为例,理论计算结果以及工程实际应用情况证明,此设计方法切实有效。According to the DC boost chopper module IGBT heat dissipation problem, this paper proposes a kind practical calculation method of IGBT power loss, and design a set of engineering practical water cooling system. Firstly, by the similarity theory, make a equivalent analysis of hot road of water cooling system to get the calculation formula of the whole hot resistance in cooling system. Secondly, make an analysis the temperature change of cooling medium to get hot resistance distribution rule in the cooling system. Finally, get design method of cooling structure of the effective parameter. Take the water cooling system design of DYNEX DIM800ECM33 - F000 for instance, the results of theoretical calculation and engineering practical application proved that this design method is practical and effective.

关 键 词：功率损耗 热阻 水冷 

分 类 号：U262.231[机械工程—车辆工程]