Subspace Identification and It's Application on Monitoring and Fault Detection of Dynamic System
碩士 === 國立臺灣大學 === 化學工程學研究所 === 90 === The theoretical developments for system identification have been laid by the pioneering work of Ljung during 70s and 80s using PEM approach. Later, in 90s motivated by overcoming some problematic requirements of PEM for multivariable system...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2002
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| Online Access: | http://ndltd.ncl.edu.tw/handle/91195304207129736575 |
| Summary: | 碩士 === 國立臺灣大學 === 化學工程學研究所 === 90 === The theoretical developments for system identification have been laid by the pioneering work of Ljung during 70s and 80s using PEM approach. Later, in 90s motivated by overcoming
some problematic requirements of PEM for multivariable system identification, the subspace have been developed.Such subspacemodels has been found useful in control system and process monitoring.The aim of this research tries to
simplify the subspace identification algorithm for easy use in developing dynamic filter for formulating Dynamic PCA. Though the use of the filter and the DPCA, faults in the dynamic data can be detected and isolated. Application of the proposed method to test the fault detection and isolation on a simulated multivariable system in this illustrated.
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