摘要
为对双堆燃料电池热管理系统进行有效控制,基于试验数据建立了电堆模型,并耦合水泵、换热器等关键零部件模型形成完整的热管理系统模型。为保证阶跃工况下电堆温度的稳定,设计了基于比例积分与线性自抗扰算法的联合控制策略,并进行仿真验证。提出了基于前馈解耦及串级LADRC的改进控制策略,通过仿真对比改进前后的控制效果。结果表明,改进后的控制策略能有效减小超调量,反映温控精度的时间乘绝对误差积分量最高可降低66.39%。
To effectively control the thermal management system of a dual-stack fuel cell system,this paper establishes a fuel cell stack model based on test data,and couples it with key component models such as pumps and heat exchangers to form a complete thermal management system model.To stabilize the stack temperature under disturbances,a control strategy combining proportional-integral(PI)with linear active disturbance rejection control(LADRC)was proposed and verified by simulation.Finally,an improved control strategy based on feedforward decoupling and cascade LADRC was proposed.The control effects before and after the improvement were compared through simulation.The results show that the improved control strategy can effectively reduce overshoot,and the integral time absolute error(ITAE),reflecting temperature control accuracy,can be reduced by up to 66.39%.
作者
程博源
刘志恩
刘昌伟
李晨雨
李永超
卢炽华
CHENG Boyuan;LIU Zhien;LIU Changwei;LI Chenyu;LI Yongchao;LU Chihua(Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology,Wuhan 430070,China;Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory,Foshan 528200,Guangdong,China;China Ship Development and Design Center,Wuhan 430064,China)
出处
《汽车工程学报》
2024年第4期661-673,共13页
Chinese Journal of Automotive Engineering
基金
国家重点研发计划“新能源汽车”重点专项(2023YFB2504201)
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)燃料电池系统与整车技术研发中心运行经费(323-14010)。
关键词
双堆燃料电池系统
热管理
自抗扰
串级控制
dual-stack fuel cell system
thermal management
active disturbance rejection control
cascade control
