Challenges in risk-informed safety management (CHARISMA)

Reliability analysis of digital I&C systems in nuclear power plants

Ilkka Karanta, Jan-Erik Holmberg, Matti Maskuniiitty

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Abstract

Assessing the reliability of digital I&C systems is an important but challenging task. Traditional tools of reliability and risk analysis, such as event and fault trees, have limitations. Some dynamic reliability analysis methods, such as dynamic flowgraph methodology (DFM) and Markov models may provide a solution to analyse digital I&C systems of nuclear power plants, such as feedwater control system. Here we will consider DFM. For safety systems (such as reactor protection system) dynamic reliability analysis methods may not be needed.
Original languageEnglish
Title of host publicationSAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010
Subtitle of host publicationInterim Report
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages485-494
ISBN (Electronic)978-951-38-7267-0
ISBN (Print)978-951-38-7266-3
Publication statusPublished - 2009
MoE publication typeNot Eligible

Publication series

NameVTT Tiedotteita - Research Notes
PublisherVTT
Number2466
ISSN (Print)1235-0605
ISSN (Electronic)1455-0865

Fingerprint

Reliability analysis
Nuclear power plants
Risk analysis
Security systems
Dynamical systems
Control systems

Cite this

Karanta, I., Holmberg, J-E., & Maskuniiitty, M. (2009). Challenges in risk-informed safety management (CHARISMA): Reliability analysis of digital I&C systems in nuclear power plants. In SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010 : Interim Report (pp. 485-494). Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Research Notes, No. 2466
Karanta, Ilkka ; Holmberg, Jan-Erik ; Maskuniiitty, Matti. / Challenges in risk-informed safety management (CHARISMA) : Reliability analysis of digital I&C systems in nuclear power plants. SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010 : Interim Report. Espoo : VTT Technical Research Centre of Finland, 2009. pp. 485-494 (VTT Tiedotteita - Research Notes; No. 2466).
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Karanta, I, Holmberg, J-E & Maskuniiitty, M 2009, Challenges in risk-informed safety management (CHARISMA): Reliability analysis of digital I&C systems in nuclear power plants. in SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010 : Interim Report. VTT Technical Research Centre of Finland, Espoo, VTT Tiedotteita - Research Notes, no. 2466, pp. 485-494.

Challenges in risk-informed safety management (CHARISMA) : Reliability analysis of digital I&C systems in nuclear power plants. / Karanta, Ilkka; Holmberg, Jan-Erik; Maskuniiitty, Matti.

SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010 : Interim Report. Espoo : VTT Technical Research Centre of Finland, 2009. p. 485-494 (VTT Tiedotteita - Research Notes; No. 2466).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

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AU - Maskuniiitty, Matti

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AB - Assessing the reliability of digital I&C systems is an important but challenging task. Traditional tools of reliability and risk analysis, such as event and fault trees, have limitations. Some dynamic reliability analysis methods, such as dynamic flowgraph methodology (DFM) and Markov models may provide a solution to analyse digital I&C systems of nuclear power plants, such as feedwater control system. Here we will consider DFM. For safety systems (such as reactor protection system) dynamic reliability analysis methods may not be needed.

M3 - Chapter or book article

SN - 978-951-38-7266-3

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BT - SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010

PB - VTT Technical Research Centre of Finland

CY - Espoo

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Karanta I, Holmberg J-E, Maskuniiitty M. Challenges in risk-informed safety management (CHARISMA): Reliability analysis of digital I&C systems in nuclear power plants. In SAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007-2010 : Interim Report. Espoo: VTT Technical Research Centre of Finland. 2009. p. 485-494. (VTT Tiedotteita - Research Notes; No. 2466).