Pressure control in a PEM fuel cell via second order sliding mode
Pressure control in a PEM fuel cell via second order sliding mode
复制标题
DOI：
10.1016/j.ijhydene.2012.08.007
复制
发表时间：
2012-11
影响因子：
7.2
通讯作者：
Imad Matraji;S. Laghrouche;M. Wack
中科院分区：
文献类型：
--
作者：
Imad Matraji;S. Laghrouche;M. Wack
聚合物电解质膜燃料电池（PEMFC）内部的压力差是由负载变化引起的，在此期间阳极和阴极之间的压力差增大。实际上，这个问题可以通过平衡阳极和阴极压力来避免，以保护燃料电池免受永久性损坏。本文主要研究了PEMFC阳极和阴极侧的压力调节。采用基于“扭转算法”的二阶滑模多输入多输出（MIMO）控制器实现控制目标。将参数不确定性形式化地表示并包含在非线性动态燃料电池模型中。所得到的非线性控制器具有鲁棒性，并证明在参数不确定情况下在任意平衡点处都能保证性能。仿真结果表明，该控制器在负荷变化下具有良好的瞬态响应。
Pressure difference inside the Polymer Electrolyte Membrane Fuel Cells (PEMFC) arises due to load variations, during which the pressure difference between anode and cathode rises. Practically, this problem can be avoided by equalizing anode and cathode pressures, to protect the fuel cell from permanent damage. This paper focuses on pressure regulation in the anode and cathode sides of the PEMFC. The control objective is achieved using second order sliding mode multi-input multi-output (MIMO) controller based on “Twisting algorithm”. Parametric uncertainty is formally presented and included in a nonlinear dynamic fuel cell model. The resultant nonlinear controller is robust and is proved to guarantee performance around any equilibrium point and under parametric uncertainty. Simulation results show that the proposed controller has a good transient response under load variations.