碳化硅控制器用冷却结构设计与测试  

Design and Test of Cooling Structure for A Silicon Carbide Controller

作　　者：陈登峰 秦基伟 陈雷 CHEN Deng-feng;QIN Ji-wei;CHEN Lei(Shanghai Automotive Electric Drive Co.,Ltd.,Shanghai 201806,China;Shanghai Edrive Co.,Ltd.,Shanghai 201806,China)

机构地区：[1]上海汽车电驱动有限公司,上海201806 [2]上海电驱动股份有限公司,上海201806

出　　处：《微特电机》2021年第10期32-35,共4页Small & Special Electrical Machines

基　　金：国家重点研发计划(2018YFB0104704)。

摘　　要：碳化硅控制器在高频工况下工作时会产生大量的热量并导致其温度短时极剧升高,为保证控制器的正常工作,需要设计专门的冷却结构对其散热。针对一款碳化硅控制器的冷却需求,设计并详细介绍了与之相匹配的冷却结构。在冷却结构的散热条件下,对控制器的碳化硅模块及薄膜电容工作时的温度分布规律进行了热仿真分析研究。制作了碳化硅控制器样机,并对碳化硅模块及薄膜电容的温升分别在峰值工况和额定工况条件下进行了台架测试。测试结果表明,该冷却结构具有散热效果好的优点,能够满足碳化硅控制器的工作要求,对同类碳化硅控制器冷却结构的设计具有重要的指导意义。The SiC controller will generate a lot of heat and cause its temperature to rise sharply in a short time when working under high frequency conditions.In order to ensure the normal operation of the controller,a special cooling structure needs to be designed to dissipate heat.According to the cooling requirements of a SiC controller,the corresponding cooling structure was designed and introduced in detail.Under the condition of using the cooling structure,the temperature distribution law of the SiC module and film capacitor of the controller was analyzed and researched by thermal simulation.A prototype of the SiC controller was fabricated,and the temperature rise of the SiC module and the film capacitor was tested respectively under the peak operating condition and the rated operating condition.The test results show that the cooling structure designed in this paper has the advantages of good heat dissipation effect.It can meet the working requirements of SiC controllers and has important guiding significance for the design of cooling structures of similar SiC controllers.

关 键 词：电机控制器 冷却结构 热仿真 温升测试 

分 类 号：TM301[电气工程—电机]