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摘要: 讨论现有基于模型的故障诊断与容错控制方法的局限性, 并由此提出一个基于$\nu$- 间隙度量来处理故障诊断与容错控制的新框架. 并且, 讨论了如何在此框架下对故障进行分类和分级以及提出如何进行容错控制的一般性控制结构.
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关键词:
- 故障诊断 /
- 容错控制 /
- $\nu$- 间隙度量 /
- 鲁棒控制 /
- 系统辨识
Abstract: This paper discusses the limitations of existing model-based fault diagnosis and fault-tolerant control methods, and proposes a new framework for fault diagnosis and fault-tolerant control based on $\nu$-gap metric. The paper discusses further how to classify faults under this framework and proposes a general control structure for fault-tolerant control.-
Key words:
- Fault diagnosis /
- fault-tolerant control /
- $\nu$-gap metric /
- robust control /
- system identification
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图 7 闭环系统$T_1$, $T_2$和$T_3$阶跃响应
Fig. 7 Step responses of the closed-loop systems $T_1$, $T_2$ and $T_3$
图 9 故障按照对系统性能影响程度分级示意图
Fig. 9 Illustrative diagram for fault classification according to its impact on system performance
图 10 按$\nu$- 间隙度量分成故障等级示意图
Fig. 10 Illustrative diagram for fault classification according to $\nu$-gap metric
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