基于可拓控制的质子交换膜燃料电池动态特性研究  

Dynamic characteristics of proton exchange membrane fuel cell based on extension control

作　　者：吕学勤[1] 王龙田 

机构地区：[1]上海电力学院自动化工程学院,上海200090

出　　处：《可再生能源》2016年第4期583-587,共5页Renewable Energy Resources

基　　金：国家自然科学基金资助项目(51405286);上海市重点实验室电站自动化技术实验室(13DZ2273800)

摘　　要：针对质子交换膜燃料电池在启动和负载变化时,输出响应速度较慢和稳定性较差的问题,提出了一种基于可拓控制的质子交换膜燃料电池动态特性优化方案。基于质子交换膜燃料电池动态模型,结合可拓控制参数整定简单、响应快速、稳定性好的特点,以质子交换膜燃料电池输入端氢气进气量作为参考控制量,设计了可拓控制器,以提高质子交换膜燃料电池的响应速度及输出稳定性。将可拓控制与经典PID的控制效果进行了对比,结果表明,在燃料电池启动和负载变化过程中,可拓控制在燃料电池输出动态稳定性及克服燃料电池响应滞后等方面均优于PID的控制效果。To solve the problem of slow response and poor stability of the fuel cell when it is activated or the load is changed, a scheme is proposed that can optimize the dynamic characteristics of the cell based on extension control which has several advantages, for instance, simple parameter setting, fast response, stability, etc. Regarding the hydrogen partial pressure from the input terminal as the referred control quantity, the extension controller is designed to improve the response speed and output stability. The control effect of extension control is compared with that of the PID control. Simulation results prove that extension control has better performance in terms of overcoming response lag and output dynamical stability in the process of startup or load-changing of the fuel cell.

关 键 词：燃料电池 可拓控制 稳定性 

分 类 号：TM911[电气工程—电力电子与电力传动] U469.7[机械工程—车辆工程]