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

    SeriesVTT Tiedotteita - Research Notes
    Number2466
    ISSN1235-0605

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  • 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). VTT Technical Research Centre of Finland. VTT Tiedotteita - Research Notes, No. 2466 http://www.vtt.fi/inf/pdf/tiedotteet/2009/T2466.pdf