Modeling for Electrical Characteristics of Solid Ozide Fuel Cell Based on Fractional Calculus
Its vital for the research of electrochemical reaction in solid oxide fuel cell (SOFC) to establish accurate dynamic model of its electrical characteristics. The inherent potential polarization of SOFC is analyzed, and integer order dynamic model is established by equivalent circuit. Experimental data is studied by electrochemical impedance spectroscopy (EIS), and its novel fractional order dynamic model is proposed exploringly based on the capacitor theory. Then, the parameters of integer order and fractional order models are optimized by genetic algorithm. Finally, according to the comparison of integer order dynamic model, fractional order dynamic model and impedance spectra of experimental data, the conclusion can be obtained that electric double-layer in electrode/electrolyte interface have non-integer order characteristics, and potential polarization of SOFC is more suitable to be characterized via fractional order dynamic model.
Solid Ozide Fuel Cell Equivalent Circuit Electrochemical Impedance Spectroscopy Integer Order Dynamic Model Fractional Order Dynamic Model Genetic Algorithm
HongLiang Cao Li Xi ZhongHua Deng Qin Yi
Institute of Automation, Department of Control Science and Technology, Huazhong Uni. of Science and Institute of Automation, Department of Control Science and Technology, Huazhong Uni. of Science and
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
319-322
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）