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DC Field | Value | Language |
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dc.contributor.author | Liu, Y | - |
dc.contributor.author | Wang, Z | - |
dc.contributor.author | He, X | - |
dc.contributor.author | Zhou, D | - |
dc.date.accessioned | 2017-03-08T14:17:49Z | - |
dc.date.available | 2017-01-06 | - |
dc.date.available | 2017-03-08T14:17:49Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | IET Control Theory and Applications, 11(1): pp. 135 - 141, (2017) | en_US |
dc.identifier.issn | 1751-8644 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/14205 | - |
dc.description.abstract | This study deals with a fundamental issue of evaluating the performance of widely used fault detection and diagnosis (FDD) schemes within a closed-loop framework. The focus is to examine how certain implemented controller would impact on the FDD performance and how such performance can be further improved. For this purpose, the authors consider the FDD problem for a class of linear discrete-time systems (with and without unknown disturbances) under typical proportional-integral control using observer-based methods. It is revealed that some existing observer-based FDD approaches are no longer applicable in the closed-loop situation due to the feedback control. To solve the problem, by appropriately modifying the structure and re-designing the parameters of the observers, it is proven that the dynamics of closed-loop residuals can be made identical with those of the residuals obtained with known control inputs at each time step. A numerical example is provided to show the effectiveness of the proposed algorithm. | en_US |
dc.description.sponsorship | This work was supported by National Natural Science Foundation of China (NSFC) under Grants 61490701, 61290324, 61210012, 61333005, and Research Fund for the Taishan Scholar Project of Shandong Province of China. The work of Zidong Wang was also supported by NSFC under Grant 61273156. The work of Xiao He was also partially supported by NSFC under Grants 61473163, 61522309, and Special Fund of Suzhou-Tsinghua Innovation Leading Action and Tsinghua University Initiative Scientific Research Program. | en_US |
dc.format.extent | 135 - 141 | - |
dc.language.iso | en | en_US |
dc.publisher | Institution of Engineering and Technology (IET) | en_US |
dc.subject | Fault detection and diagnosis schemes | en_US |
dc.subject | PI control | en_US |
dc.subject | Control system synthesis | en_US |
dc.subject | Linear discrete-time systems | en_US |
dc.title | A class of observer-based fault diagnosis schemes under closed-loop control: Performance evaluation and improvement | en_US |
dc.type | Article | en_US |
dc.identifier.doi | http://dx.doi.org/10.1049/iet-cta.2016.0504 | - |
dc.relation.isPartOf | IET Control Theory and Applications | - |
pubs.issue | 1 | - |
pubs.publication-status | Published | - |
pubs.volume | 11 | - |
Appears in Collections: | Dept of Computer Science Research Papers |
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FullText.pdf | 91.43 kB | Adobe PDF | View/Open |
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