大功率变频器冷却系统的设计与应用

Research on the Design and Application of Cooling System for High Power Inverter

针对变频器采用传统空调冷却方式运行稳定性差、成本高的问题,设计了大功率变频器冷却系统。首先分析了大功率冷却系统的工作原理,并以此为基础对冷却系统进行了设计,包括变频器箱设计、参数计算、关键设备选型和注意事项。将大功率变频器冷却系统应用于某热力公司,冷却系统可以有效保持变频器运行温度,保证大功率变频器的安全稳定运行。同时具有良好的经济性,设备投资可节省6万元,同时每年可节省电费23.7万元。

Aiming at the problem of poor operational stability and high cost of traditional air-conditioning cooling method for inverter,a high-power inverter cooling system is designed.Firstly,the working principle of the high-power cooling system is analysed,and the cooling system is designed on this basis,including the design of the inverter box,parameter calculation,key equipment selection and precautions.The high-power inverter cooling system is applied to an actual thermal company,the cooling system can effectively maintain the operating temperature of the inverter to ensure the safe and stable operation of the high-power inverter.Meanwhile,it has good economy,and the investment of equipment can save 60,000 yuan,meanwhile,it can save 237,000 yuan of electricity cost every year.