燃料电池发动机系统多场耦合模型分析与温度控制方法  

Analysis of Multi-Field Coupling Model and Temperature Control Method for Fuel Cell Engines

作　　者：朱丹[1] 刘京奥 李媛[1] 马建[1] 赵轩[1] ZHU Dan;LIU Jingao;LI Yuan;MA Jian;ZHAO Xuan(Chang’an University,Xi’an 710064,China)

机构地区：[1]长安大学,西安710064

出　　处：《汽车工程学报》2024年第4期642-652,共11页Chinese Journal of Automotive Engineering

基　　金：国家自然科学基金青年项目(52202462);中国博士后科学基金面上项目(2022M710484);陕西省自然科学基础研究计划项目(2022JQ-501);长安大学中央高校基本科研业务费专项资金资助项目(300102224208)。

摘　　要：温度控制是实现燃料电池发动机快速响应、降低能耗与安全运行的保障,而电堆内部热量场与电化学场、流场相互影响,其耦合特性是温度控制的关键。以某中型燃料电池卡车为研究对象,构建“热-电-流”多场耦合模型,通过参数分析确立温度控制关键因素,设计模糊PID温度控制器,并通过多变工况验证控制效果。结果表明,通过所构建的模型能全面分析温度控制关键参数,所提出的控制器能有效提高响应速度,降低散热风扇转速和输出电压超调量,在设置的测试工况与NEDC工况下,温度的超调量分别降低了19.1%与1.64%。可为燃料电池发动机设计与控制提供基础,进一步推动大功率燃料电池的车载应用。Temperature control is crucial for achieving rapid response,reducing energy consumption,and ensuring the safe operation of fuel cell engines.The coupling characteristics of the internal thermal field,electrochemical field,and flow field are key factors in temperature control.This article focuses on a medium-sized fuel cell truck,constructing a“heat-electricity-flow”multi-field model.It establishes key temperature control factors through parameter analysis,designs a fuzzy PID temperature controller,and verifies the control effectiveness under various operating conditions.The results show that the constructed model can comprehensively analyze the key parameters of temperature control.The proposed controller effectively improves response speed,reduces the speed of the cooling fan and decreases output voltage overshoot.Under both the set test condition and the NEDC condition,the temperature overshoot is reduced by 19.1%and 1.64%respectively.This work provides a foundation for the design and control of fuel cell engines,further promoting the in-vehicle application of high-power fuel cell engines.

关 键 词：燃料电池 多场耦合 温度控制策略 模糊PID控制 

分 类 号：U469.72[机械工程—车辆工程]