Transient performance and intelligent combination control of a novel spray cooling loop system |
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Authors: | Wang Jin Li Yunze Wang Jun |
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Institution: | School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China |
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Abstract: | 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. |
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Keywords: | Fuzzy logic Insulated gate bipolar tran-sistor (IGBT) Sintered porous copper Spray cooling Thermal control |
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