Abstract

This paper considers the problem of identifying (estimating) faults in systems described by linear models under exogenous disturbances. It is solved using optimal control methods; in comparison with sliding mode observers, they avoid high-frequency switching. The solution method proposed below involves a reduced model of the original system that is sensitive to faults and insensitive to disturbances. The corresponding theory is illustrated by an example.

中文翻译：

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故障识别：一种基于最优控制方法的方法

摘要

本文考虑了在外生干扰下由线性模型描述的系统中识别（估计）故障的问题。采用最优控制方法求解；与滑模观测器相比，它们避免了高频切换。下面提出的求解方法涉及对故障敏感而对扰动不敏感的原始系统的简化模型。通过一个例子说明了相应的理论。