| 引用本文: | 姜 斌,鲁守银,王先来.一类具有未知参变量的非线性系统的鲁棒故障诊断(英文)[J].控制理论与应用,2001,18(3):421~426.[点击复制] |
| JIANG Bin,LU Shou-yin,WANG Xian-lai.Robust Fault Diagnosis for a Class of Nonlinear Systems with Unknown Parameters[J].Control Theory and Technology,2001,18(3):421~426.[点击复制] |
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| 一类具有未知参变量的非线性系统的鲁棒故障诊断(英文) |
| Robust Fault Diagnosis for a Class of Nonlinear Systems with Unknown Parameters |
| 摘要点击 1319 全文点击 1145 投稿时间：1999-07-28 修订日期：2000-07-10 |
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| DOI编号 10.7641/j.issn.1000-8152.2001.3.020 |
| 2001,18(3):421-426 |
| 中文关键词 故障诊断及隔离 非线性系统 自适应观测器 未知参变量 |
| 英文关键词 fault detection and isolation nonlinear systems adaptive observer unknown parameters |
| 基金项目 |
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| 中文摘要 |
| 讨论了一类含有状态和输入未知参变量的非线性系统的故障诊断问题. 在满足一些几何条件的情况下, 该类系统可化成两类不同的子系统. 对于其中一类不受故障影响的子系统, 得到了其非线性自适应观测器及参数自适应律的设计; 另一类受故障影响的子系统的状态是可测的, 给出了该类子系统的基于模型监测和故障诊断的观测方案. 然后, 给出了用于验证本文所提方案的数字示例. |
| 英文摘要 |
| The fault diagnosis problem for a class of nonlinear systems with unknown parameters in both states and inputs is discussed. Under some geometric conditions, the systems are transformed into two different subsystems. One is not affected by actuator faults, so the nonlinear adaptive observer and the parameter adaptive law can be designed. The other whose states can be measured is affected by the faults. The observation scheme is then used for model based monitoring and fault diagnosis. Selection of threshold is investigated. Finally, a numerical example is used to illustrate the applicability of the proposed method. |