基于离散线性化模型预测控制的PEMFC水管理容错控制方法  

Fault Tolerant Control Strategy of PEMFC Water Management Based on Discrete Linearized Model Predictive Control

作　　者：邱丹洛 张雪霞[1] 黄磊 唐双喜 岳嘉玲 QIU Danluo;ZHANG Xuexia;HUANG Lei;TANG Shuangxi;YUE Jialing(School of Electrical Engineering,Southwest Jiaotong University,Chengdu 611756,Sichuan Province,China)

机构地区：[1]西南交通大学电气工程学院,四川省成都市611756

出　　处：《中国电机工程学报》2025年第6期2220-2229,I0015,共11页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家自然科学基金项目(51607149);四川省重点研发计划项目(2022YFG0257);成都国佳电气工程有限公司项目(NEEC-2022-B010)。

摘　　要：质子交换膜燃料电池(proton exchange membrane fuel cell,PEMFC)系统在工作过程中极易出现膜干、水淹等水管理故障,为缓解故障对系统安全性、可靠性、耐久性等的影响,该文提出一种基于离散线性化的模型预测控制(discrete linearized model predictive control,DLMPC)的燃料电池水管理故障容错控制方案。首先,为燃料电池系统构建数学模型并建立状态方程;然后,对系统进行离散线性化处理;最后,利用DLMPC的方法分别对3种故障状态的输出进行控制。结果表明:所提出的容错控制方法具有良好的控制效果,能够在不同的负载电流以及故障状态下快速准确地调节阴阳极压力差和氧气分压至设定值,调节时间和超调量较传统比例积分微分(proportion integration differentiation,PID)控制器均缩短80%以上。所提方案能够在水管理故障下有效缓解质子交换膜压力,同时保持稳定的输出性能,延长PEMFC系统的使用寿命。Water management failures such as membrane drying and flooding are prone to occur in proton exchange membrane fuel cell(PEMFC)system during operation.In order to mitigate the impact of failures on system safety,reliability and durability,a fault tolerant control scheme based on discrete linearized model predictive control(DLMPC)is proposed.First,a mathematical model for the fuel cell system is developed and the control-oriented equation of state is established.Then,the discrete linearization processing is conducted for the system.Finally,DLMPC is used to control the output of three fault states.The simulation results show that the proposed fault tolerant control method has good control effect,and can quickly and accurately adjust the pressure difference between the anode and cathode and the oxygen partial pressure to the set value under different load currents and fault states.The adjustment time and overshoot are both reduced by more than 80%compared to traditional proportion integration differentiation(PID).The proposed method can effectively alleviate proton exchange membrane pressure in the event of water management failures,while maintaining stable output performance and extending the service life of PEMFC systems.

关 键 词：燃料电池 模型预测 容错控制 水管理 

分 类 号：TM911[电气工程—电力电子与电力传动]