高温甲醇燃料电池热管理系统设计

针对某型号高温甲醇燃料电池单电池模块，以实现精确控温、快速启动为目的进行了燃料电池热管理系统的设计、制造和测试。应用Matlab/Simulink平台开发了一种拟合简化方程的控制系统算法及其仿真计算平台，并对所设计的控制算法进行了仿真计算；同时对燃料电池内外传热介质循环回路及冷却系统换热器进行了重新设计与样件试制。完成了热管理系统单电池模块运行试验，将实测数据与仿真计算结果进行了对比分析。试验结果表明，所设计热管理系统成功将电池预热时间缩短了678s，稳定工况下冷却介质温度误差保持在±2℃以内，达到了预定的设计要求。样件试制及测试结果验证了热管理系统设计的可行性、准确性及实用性，为今后高温甲醇燃料电池热管理系统设计优化提供了理论和实际参考。

Design of thermal management system for high temperature methanol fuel cell

In order to achieve the precise temperature control and rapid start-up of the single-cell module of a high-temperature methanol fuel cell, the design, manufacture and testing of the thermal management system were carried out. A control system algorithm for fitting simplified equations and the simulation platform were developed by using MATLAB/Simulink. Further, the utility for both internal and external circulation loops of the fuel cell and the heat exchangers in cooling system were redesigned and prototyped. The operation test of the thermal management system for single battery module was performed, and the measured and the simulation data were compared and analyzed. The test results showed that the designed thermal management system successfully shortened the battery warm-up time by 20%, and the temperature error of the cooling medium was within ±2℃under steady state, which met the design requirements well. The prototype and test results verified the feasibility, accuracy and practicability of the thermal management system design, which provided a theoretical and practical reference for the design and optimization of the thermal management system for high temperature methanol fuel cell.