摘要
目前直流变压器(DCT)向高电压、大容量、小型化方向发展,体积功率密度逐渐增大,给系统散热带来挑战。主要介绍了某型强制风冷DCT机柜热设计及风机选型方法,通过以系统散热所需风量值作为计算流体动力学(CFD)仿真边界条件,计算并优化系统流阻以确定风机型号,进一步试验测试了DCT机柜温升及风机工作点风量,验证了计算与仿真的准确性,该方法可为电力设备散热设计提供参考。
DC transformer(DCT)has been widely used as one of the key equipments of DC power grid.The volume of the DCT becomes smaller,however the power density of the DCT becomes higher which presents a challenge to the system of heat dissipation.A thermal design method and a fan selection method for an air cooled DC transformer are mainly provided.The computational fluid dynamics(CFD)simulation boundary condition is used to calculate and optimize the flow resistance of the system to determine the fan model,further test the temperature rise of the DCT cabinet and the wind volume at the fan working point and verify the accuracy of calculation and simulation.This method can provide reference for the heat dissipation design of power equipment.
作者
梁帅奇
张华润
姜辉
侯凯
LIANG Shuai-qi;ZHANG Hua-run;JIANG Hui;HOU Kai(State Key Laboratory of Smart Grid Protection and Control,Nanjing 211106,China)
出处
《电力电子技术》
CSCD
北大核心
2021年第2期50-53,共4页
Power Electronics
基金
国家电网有限公司总部科技项目(SGNR0000KJJS1808009)。
关键词
变压器
散热
强制风冷
transformer
heat dissipation
air cooled
