Transient performance and intelligent combination control of a novel spray cooling loop system

摘要

Effective thermal control systems are essential for the reliable working of insulated gate bipolar transistors(IGBTs) in many applications.A novel spray cooling loop system with integrated sintered porous copper wick(SCLS-SPC) is proposed to meet the requirements of higher device level heat fluxes and the harsh environments in some applications such as hybrid,fuel cell vehicles and aerospace.Fuzzy logic and proportional-integral-derivative(PID) policies are applied to adjust the electronic temperature within a safe working range.To evaluate the thermal control effect,a mathematical model of a 4-node thermal network and pump are established for predicting the dynamics of the SCLS-SPC.Moreover,the transient response of the 4 nodes and vapor mass flowrate under no control,PID and Fuzzy-PID are numerically investigated and discussed in detail.