车载PEMFC空气供给系统OER控制研究  

Research on oxygen excess ratio control of vehicle PEMFC air supply system

作　　者：王宇宁[1] 张纯瑞 宋福豪 WANG Yuning;ZHANG Chunrui;SONG Fuhao(School of Automotive Engineering,Wuhan University of Technology,Wuhan 430070,China;Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory,Foshan 528200,China)

机构地区：[1]武汉理工大学汽车工程学院,湖北武汉430070 [2]先进能源科学与技术广东省实验室佛山分中心(佛山仙湖实验室),广东佛山528200

出　　处：《合肥工业大学学报（自然科学版）》2024年第12期1608-1616,共9页Journal of Hefei University of Technology：Natural Science

基　　金：国家重点研发计划资助项目(2023YFB2504300);广西重点研发计划资助项目(桂科AB22362);柳州市科技攻关与新产品试制资助项目(2022ABA0103)。

摘　　要：过氧比(oxygen excess ratio,OER)是质子交换膜燃料电池(proton exchange membrane fuel cell,PEMFC)输出性能及安全性的重要影响参数,控制OER达到最优值可有效提高系统输出的净功率。针对PEMFC空气供给系统OER控制问题,文章利用MATLAB/Simulink平台建立PEMFC空气供给系统四阶模型,并进行系统动力学特性分析,验证模型有效性;设计3种控制器对OER进行控制,包括前馈比例-积分-微分(feedforward proportion integration differentiation,FF+PID)控制器、前馈自适应模糊PID(feedforward self-adaptive fuzzy PID,FF+SFPID)控制器及滑模控制器(sliding mode controller,SMC)。在输入扰动的情况下,对比分析了定OER及最优OER下不同控制器的控制效果。仿真结果表明,SMC对于OER的控制具有更短的调节时间且未出现超调现象,抗干扰能力更强,在动态特性和稳态特性上均优于其他2种控制器。Oxygen excess ratio(OER)is an important parameter that affects the output performance and safety of proton exchange membrane fuel cell(PEMFC).Controlling the OER to reach the optimal value can effectively improve the net power output of the system.To address the issue of OER control of PEMFC air supply system,a four-order model of PEMFC air supply system is established using MATLAB/Simulink platform,and the system dynamics characteristics are analyzed to verify the effectiveness of the model.Three controllers are designed to control OER,including feedforward proportion integration differentiation(FF+PID)controller,feedforward self-adaptive fuzzy PID(FF+SFPID)controller and sliding mode controller(SMC).In the case of input disturbance,the control effects of different controllers under fixed OER and optimal OER are compared and analyzed.The simulation results show that the SMC has shorter adjustment time and no overshoot for the control of OER,and has stronger anti-interference ability.SMC is superior to the other two controllers in dynamic and steady-state characteristics.

关 键 词：质子交换膜燃料电池(PEMFC) 过氧比(OER) 前馈PID 前馈自适应模糊PID 滑模控制 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TP13[自动化与计算机技术—控制理论与控制工程]