Optimal State Estimation and Fault Diagnosis For a Class of Nonlinear Systems
文献类型：期刊论文
| 作者 | Hamed Kazemi; Alireza Yazdizadeh |
| 刊名 | IEEE/CAA Journal of Automatica Sinica
 |
| 出版日期 | 2020 |
| 卷号 | 7期号:2页码:517-526 |
| 关键词 | Differential geometry fault detection and isolation (FDI) fault diagnosis neural network (NN) nonlinear observer and filter design optimal state estimation |
| ISSN号 | 2329-9266 |
| DOI | 10.1109/JAS.2020.1003051 |
| 英文摘要 | This study proposes a scheme for state estimation and, consequently, fault diagnosis in nonlinear systems. Initially, an optimal nonlinear observer is designed for nonlinear systems subject to an actuator or plant fault. By utilizing Lyapunov's direct method, the observer is proved to be optimal with respect to a performance function, including the magnitude of the observer gain and the convergence time. The observer gain is obtained by using approximation of Hamilton-Jacobi-Bellman (HJB) equation. The approximation is determined via an online trained neural network (NN). Next a class of affine nonlinear systems is considered which is subject to unknown disturbances in addition to fault signals. In this case, for each fault the original system is transformed to a new form in which the proposed optimal observer can be applied for state estimation and fault detection and isolation (FDI). Simulation results of a single-link flexible joint robot (SLFJR) electric drive system show the effectiveness of the proposed methodology. |
| 源URL | [http://ir.ia.ac.cn/handle/173211/42973]  |
| 专题 | 自动化研究所_学术期刊_IEEE/CAA Journal of Automatica Sinica |
| 推荐引用方式 GB/T 7714 | Hamed Kazemi,Alireza Yazdizadeh. Optimal State Estimation and Fault Diagnosis For a Class of Nonlinear Systems[J]. IEEE/CAA Journal of Automatica Sinica,2020,7(2):517-526. |
| APA | Hamed Kazemi,&Alireza Yazdizadeh.(2020).Optimal State Estimation and Fault Diagnosis For a Class of Nonlinear Systems.IEEE/CAA Journal of Automatica Sinica,7(2),517-526. |
| MLA | Hamed Kazemi,et al."Optimal State Estimation and Fault Diagnosis For a Class of Nonlinear Systems".IEEE/CAA Journal of Automatica Sinica 7.2(2020):517-526. |
入库方式： OAI收割
来源：自动化研究所
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