PEMFC分数阶子空间建模

Research on Fractional Order Subspace Modeling

摘要: 质子交换膜燃料电池(Proton Exchange Membrane Fuel Cell, PEMFC)是一个复杂的多变量、强耦合、非线性系统，精确的建模方法是对其进行研究的基础，而先进的控制策略则是提高发电性能的关键。近年来，不少研究表明PEMFC发电过程中的气体扩散、热量传导以及电化学反应等动态过程存在分数阶特性。为此，本文将分数阶理论与子空间辨识方法(Subspace Identification Method, SIM)相结合，建立PEMFC的分数阶状态空间模型。

Abstract: Proton Exchange Membrane Fuel Cell (PEMFC) is a complex multi-variable, strongly coupled and non-linear system. Accurate modeling method is the basis of its research, and advanced control strategy is the key to improving the power generation performance. In recent years, many studies have shown that the dynamic processes of PEMFC power generation, such as gas diffusion, heat conduction and electrochemical reaction, have fractional order characteristics. In this paper, a fractional order state space model of PEMFC is established by combining fractional order theory with subspace identification method (SIM).