变频器单元成柜后的散热方案  

Heat Dissipation Solution for the Cabinetized Inverter Unit

作　　者：许佩佩 钟方林 李应旺 丁信忠 Xu Peipei;Zhong Fanglin;Li Yingwang;Ding Xinzhong

机构地区：[1]上海辛格林纳新时达电机有限公司,上海201800

出　　处：《变频器世界》2024年第10期90-95,共6页The World of Inverters

摘　　要：本文针对变频器单元成柜后的散热方案,利用Icepak通过数值模拟分析,探究了几种影响因素对IGBT散热器、整流散热器、电容、铜排和电抗器表面散热性能的影响,可以为相关工程人员提供设计参考。仿真结果表明:变频器单元成柜后,如果柜体上仅设置通风口,柜体上无出风风扇时,变频器单元内的温度会有很大升高,不能满足设计使用要求。在满足柜体防护等级IP22时,在柜体上增加出风风扇,柜体上的风扇的风量及风压性能不低于变频器单元内的风扇性能;在满足柜体防护等级IP54时,柜体上的风扇选型要增大,按照柜体的风扇的风量风压性能≥1.5倍变频器单元内的风扇性能选型,按此种方法配置柜体风扇后,变频器单元内温度和柜内器件温度均与变频器单元的温度接近,满足设计要求。实际设计时,需综合实际现场应用,来选择较合适的方案。This paper aims at the heat dissipation scheme of the inverter unit after cabinet formation,this paper uses ICEPAK to explore the influence of several influencing factors on the surface heat dissipation of IGBT radiator,rectifier radiator,capacitor,copper bar and reactor through numerical simulation analysis,which can provide design reference for relevant engineering personnel.The simulation results show that:if only the air outlet is set on the cabinet body and there is no fan,the temperature in the inverter unit will increase greatly,which can not meet the design and use requirements.When the protection level of the cabinet is IP22,the exhaust fan is added to the cabinet,and the air volume and air pressure performance of the fan on the cabinet cannot be lower than that of the fan in the inverter unit.When the protection level of the cabinet is IP54,the selection of the fan on the cabinet should be increased.The selection of the fan in the inverter unit should be based on the air volume and pressure performance of the fan in the cabinet≥1.5 times.After the cabinet fan is configured in this way,the temperature in the inverter unit and the temperature of the device in the cabinet are close to the temperature of the inverter unit only,which meets the design requirements.In the actual design,it is necessary to choose a more suitable scheme based on the actual field application.

关 键 词：变频器 柜体 防护等级 散热性能 数值模拟 

分 类 号：TN305.94[电子电信—物理电子学]