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Robust voltage tracking control for proton exchange membrane fuel cells

机译：质子交换膜燃料电池的鲁棒电压跟踪控制

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This paper presents a robust control approach for proton exchange membrane (PEM) fuel cell systems. In a linear parameter varying system representation of the nonlinear PEM fuel cell dynamics, the system matrices are dependent on the system varying parameters, the output current and the stack temperature. To obtain guaranteed design performance, system uncertainties caused by the variational system parameters are addressed during controller design. The voltage tracking performance is expressed in terms of Η~∞ optimization of the ratio of the tracking error to the issued command. The controller is constructed numerically in terms of the convex tractable linear matrix inequalities. Due to the parameter-dependent system matrices of the PEM fuel cells, the formulated matrix inequalities in denoting various design specifications are also dependent on the system varying parameters. Using the affinely dependent property of these matrix inequalities, design performance can be established by evaluating only the matrix inequalities in the extremes of the varying parameters. Both nominal and robust controller designs are verified through time response simulation for both nominal PEM fuel cell and nonlinear PEM fuel cell dynamics.
机译：本文提出了一种用于质子交换膜（PEM）燃料电池系统的鲁棒控制方法。在非线性PEM燃料电池动力学的线性参数变化系统表示中，系统矩阵取决于系统变化参数，输出电流和电池组温度。为了获得有保证的设计性能，在控制器设计期间解决了由可变系统参数引起的系统不确定性。电压跟踪性能以跟踪误差与发出的命令之比的最佳优化表示。根据凸可处理线性矩阵不等式在数值上构造控制器。由于PEM燃料电池的取决于参数的系统矩阵，在表示各种设计规格时，公式化的矩阵不等式也取决于系统变化的参数。利用这些矩阵不等式的仿射依赖属性，可以通过仅评估变化参数极端情况下的矩阵不等式来建立设计性能。通过名义PEM燃料电池和非线性PEM燃料电池动力学的时间响应仿真，可以验证名义控制器和鲁棒控制器的设计。

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