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Application of nonl...
Application of nonlinear principal component analysis technique to nuclear power plants
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Qi, Z. (författare)
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Hong, J. (författare)
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Li, W. (författare)
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visa fler...
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Yuan, Y. (författare)
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Zhang, Y. (författare)
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- Ma, Weimin (författare)
- KTH,Kärnkraftssäkerhet
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visa färre...
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(creator_code:org_t)
- ASME Press, 2019
- 2019
- Engelska.
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Ingår i: International Conference on Nuclear Engineering, Proceedings, ICONE. - : ASME Press. - 9784888982566
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Traditionally, manual calibration of sensors is required and performed during each refueling outage. If the traditional time-directed calibration is replaced by an online monitoring technique, the maintenance cost will be significantly reduced since only the abnormal sensors identified in on-line monitoring need to be re-calibrated or replaced off-line. The Nonlinear Principal Component Analysis (NLPCA), such as Auto-Associative Neural Network (AANN) and Auto-Associative Kernel Principal Component Analysis (AAKPCA), can describe the nonlinear correlation between sensors such as power, temperature, pressure and flowrate. In this paper, AANN and AAKPCA model are tested by simulated redundant data and Tennessee-Eastman process data. The results show that both of them have a high ability of prediction and a low sensitivity. Therefore, they are can be used in on-line monitoring.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- Auto-associative kernel principal component analysis
- Auto-associative neural network
- Feature extraction
- Nonlinear correlation
- Online monitoring
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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