文献类型：期刊文献

英文题名：Integrated Modeling and Variable Universe Fuzzy Control of a Hydrogen-Air Fuel Cell System

作者：Tong, S. W.[1];Qian, D. W.[2];Fang, J. J.[1];Li, H. X.[1]

通讯作者：Tong, SW[1]

机构：[1]Beijing Union Univ, Coll Automat, Beijing 100101, Peoples R China;[2]North China Elect Power Univ, Sch Control & Comp Engn, Beijing 102206, Peoples R China

第一机构：北京联合大学城市轨道交通与物流学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Automat, Beijing 100101, Peoples R China.|[1141751]北京联合大学城市轨道交通与物流学院;[11417]北京联合大学;

年份：2013

卷号：8

期号：3

起止页码：3636-3652

外文期刊名：INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE

收录：;Scopus(收录号：2-s2.0-84875066559);WOS:【SCI-EXPANDED(收录号:WOS:000316566700046)】；

基金：This work was supported by the New Start Program of the Beijing Union University under grant No. ZK20120016, Natural Science Foundation of Hebei Province under grant No. F2012502023, and the Fundamental Research Funds for the Central Universities under grant No. 12TD02.

语种：英文

外文关键词：Fuel cell; Modeling; Fuzzy control; Variable universe; DC/DC buck converter

摘要：This paper deals with the problem of integrated modeling and control of a hydrogen-air fuel cell system with a DC-DC buck converter. Unlike hydrogen-oxygen fuel cells, the hydrogen-air fuel cell needs to consider the effect of the nitrogen and the water vapor to the system. Thus, the modeling of process becomes more complex. This paper focuses on a 1KW PEM fuel cell unit and develops the models of stack voltage, cathode flow, anode flow and DC-DC converter based on the mass conservation, Henry law, Dalton partial pressure law, ideal gas equation and electrochemical theory etc. According to the changes of the current of load and the polarization curve at the operational temperature, the stack output voltage can be controlled to a given value by using a variable universe fuzzy controller. Then a DC/DC buck converter is implemented to convert the stack output voltage to a standard 12V DC which can be used as a standard electric source for DC load.