dc.citation.endPage |
135 |
- |
dc.citation.number |
2 |
- |
dc.citation.startPage |
128 |
- |
dc.citation.title |
International Journal on Nuclear Safety and Simulation |
- |
dc.citation.volume |
5 |
- |
dc.contributor.author |
Lee, Seung Jun |
- |
dc.date.accessioned |
2023-12-22T02:37:46Z |
- |
dc.date.available |
2023-12-22T02:37:46Z |
- |
dc.date.created |
2018-08-01 |
- |
dc.date.issued |
2014-06 |
- |
dc.description.abstract |
A reliability analysis of digital instrumentation and control (I&C) systems in nuclear power plants has been intoriduced as one of the important elements of a probabilistic safety assessment because of the unique characteristics of digital I&C systems. Digital I&C systems have various features distinguishable from those of analog I&C systems such as software and fault-tolerant techniques. In this work, the faults in a digital I&C system were analyzed and a model for representing the effect of the faults wa developed. First, the effects of the faults in a system were analyzed using fault injection experiments. A software-omplemented fault inject technique in which faults can be injected into the memory was used on the annumption that all faults in a system are reflected in the faults in the memory. In the experiment, the effect of a nfault on the system output was observed. In addition, the success or fault three model for representing that a fault is propagated to the system output was developled. With the model, it can be identicated how a fault is propagated to the output or why a fault is not detected by fault-tolerant techniques. Based on the analysis results of the proposed method, it is possible to not only evaluate the system reliability but also identify weak points of fault-tolerant techniques by indentifying undetected faults. The result can be reflect in the designs to improve the capability of fault-tolerant techniques. |
- |
dc.identifier.bibliographicCitation |
International Journal on Nuclear Safety and Simulation, v.5, no.2, pp.128 - 135 |
- |
dc.identifier.issn |
2185-0577 |
- |
dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/24510 |
- |
dc.language |
한국어 |
- |
dc.publisher |
Symbio Community Forum and Harbin Engineering University |
- |
dc.title |
Effect Analysis of Faults in Digital I&C Systems of Nuclear Power Plants |
- |
dc.type |
Article |
- |
dc.description.journalRegisteredClass |
other |
- |