基于滑模结构的燃料电池控制参数优化研究  

Research of fuel cell control parameters optimization based on sliding mode

作　　者：贠海涛 魏永琪 许鑫 魏世通 YUN Hai-tao;WEI Yong-qi;XU Xin;WEI Shi-tong(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao Shandong 266520,China;School of Instrument Science and Photoelectric Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,山东青岛266520 [2]北京航天航空大学仪器与光电工程学院,北京100191

出　　处：《电源技术》2020年第12期1759-1762,1808,共5页Chinese Journal of Power Sources

基　　金：山东省重点研发计划项目(2018GGX103030);山东省重点研发计划项目(ZR2019MEE089)。

摘　　要：质子交换膜燃料电池是一种以氢气和氧气作为原料的绿色设备,空气压缩机是燃料电池系统最为核心的设备之一,因此实现空压机的优化控制,降低燃料电池系统辅助设备的功耗是目前空压机重大研究方向之一。基于滑模控制理论,利用搭建的实验台架,对离心式空压机主要参数(过量空气系数、转速、背压阀开度)做出调整,并对调整前后燃料电池堆状态和空压机的功率消耗做了分析。实验结果表明:过量空气系数的选取范围要考虑燃料电池工作温度,调节背压阀开度增加阴极侧空气压力值,建立空压机转速与燃料电池输出电流的关系曲线,对于提高离心式空压机的性能从而使燃料电池系统工作状态平稳是比较有效的。The air compressor is one of the core components for the proton exchange membrane fuel cell which utilizes the electrochemical reaction of the hydrogen and oxygen to produce electricity.Achieving the compressor’s optimizing control and decreasing the power consumption of auxiliary equipment is one of the research directions.By regulating the main centrifugal air compressor’s parameters(excess oxygen ratio,compressor speed and counterbalance value)and using building experiment test,the author used the theory of sliding mode control as the basement and compared compressor’s power watts.The experiment results show that the choice of excess oxygen ratio based on the working temperature of fuel cell,increasing the pressure of cathode’s air by regulating the back pressure value and building the equations about compressor speed and fuel cell stack’s output current,are beneficial for increasing the centrifugal air compressor’s performance and making the fuel cell system working condition stable.

关 键 词：燃料电池 离心式空压机 滑模控制 优化控制 

分 类 号：TM911[电气工程—电力电子与电力传动]