Reliability assessment of diversity in digital I&C systems at nuclear power plants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F10%3A%230001681" target="_blank" >RIV/46356088:_____/10:#0001681 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Reliability assessment of diversity in digital I&C systems at nuclear power plants

Popis výsledku v původním jazyce

Digital automation devices start to be widely used within safety critical Instrumentation and Control systems at NPPs. This modern technology by itself is obviously relatively highly reliable and also brings side advantages which make the status of control devices more transparent and modifiable. The main safety concern is a possibility of an occurrence of dependent failures, which could leads to the loss of several safety functions. The diversity is a very important principle in the effort to avoid Common Cause Failures. Probabilistic reliability assessment of different ways of diversity in complex digital systems seems to be a good way how to disclose potential shortages of particular diversity approaches. Experience with probabilistic approach in digital I&C evaluation nevertheless shows a lot of uncertainty in results which mainly origin in insufficient knowledge of the behavior of both the electronic devices and software in particular. The experimental model based on a Fault Tree

Název v anglickém jazyce

Reliability assessment of diversity in digital I&C systems at nuclear power plants

Popis výsledku anglicky

Digital automation devices start to be widely used within safety critical Instrumentation and Control systems at NPPs. This modern technology by itself is obviously relatively highly reliable and also brings side advantages which make the status of control devices more transparent and modifiable. The main safety concern is a possibility of an occurrence of dependent failures, which could leads to the loss of several safety functions. The diversity is a very important principle in the effort to avoid Common Cause Failures. Probabilistic reliability assessment of different ways of diversity in complex digital systems seems to be a good way how to disclose potential shortages of particular diversity approaches. Experience with probabilistic approach in digital I&C evaluation nevertheless shows a lot of uncertainty in results which mainly origin in insufficient knowledge of the behavior of both the electronic devices and software in particular. The experimental model based on a Fault Tree

Druh

D - Stať ve sborníku

CEP obor

JF - Jaderná energetika

OECD FORD obor

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Projekt

<a href="/cs/project/FT-TA3%2F071" target="_blank" >FT-TA3/071: Bezpečnostní aspekty pokročilých jaderných reaktorů.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

7th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies 2010, NPIC and HMIT 2010, 2

ISBN

9781617822667

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

1272-1281

Název nakladatele

American Nuclear Society

Místo vydání

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Místo konání akce

Las Vegas, NV, USA

Datum konání akce

1. 1. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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