NPSAG/SAFIR/NKS project DIGREL 

Digital I&C reliability

S. Authén, Jan-Erik Holmberg

Research output: Contribution to conferenceConference articleProfessional

Abstract

The OECD/NEA CSNI Working Group on Risk Assessment (WGRisk) has set up a task group called DIGREL to develop a taxonomy of failure modes of digital components for the purposes of probabilistic safety assessment (PSA). The taxonomy is aimed to be the basis of future modelling and quantification efforts. It will also help define a structure for data collection and to review of PRA studies. A parallel Nordic activity carried out a pre-study where a comparison of Nordic experiences and a literature review were performed. The study showed a wide range of approaches and solutions to the challenges given by digital I&C. In order to study the effect of I&C design features and modelling approaches, an existing simplified PSA model has been complemented with fault tree models for a distributed reactor protection system. The paper summarises the failure modes taxonomy work.
Original languageEnglish
PagesPaper S5-1
Publication statusPublished - 2013
MoE publication typeNot Eligible
EventNordic PSA Conference - Castle Meeting 2013 - Stockholm, Sweden
Duration: 10 Apr 201312 Apr 2013

Conference

ConferenceNordic PSA Conference - Castle Meeting 2013
CountrySweden
CityStockholm
Period10/04/1312/04/13

Fingerprint

Taxonomies
Failure modes
Risk assessment

Keywords

  • probabilistic safety assessment
  • digital I&C
  • reliability analysis
  • failure mode
  • taxonomy

Cite this

Authén, S., & Holmberg, J-E. (2013). NPSAG/SAFIR/NKS project DIGREL : Digital I&C reliability. Paper S5-1. Paper presented at Nordic PSA Conference - Castle Meeting 2013, Stockholm, Sweden.
Authén, S. ; Holmberg, Jan-Erik. / NPSAG/SAFIR/NKS project DIGREL  : Digital I&C reliability. Paper presented at Nordic PSA Conference - Castle Meeting 2013, Stockholm, Sweden.
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abstract = "The OECD/NEA CSNI Working Group on Risk Assessment (WGRisk) has set up a task group called DIGREL to develop a taxonomy of failure modes of digital components for the purposes of probabilistic safety assessment (PSA). The taxonomy is aimed to be the basis of future modelling and quantification efforts. It will also help define a structure for data collection and to review of PRA studies. A parallel Nordic activity carried out a pre-study where a comparison of Nordic experiences and a literature review were performed. The study showed a wide range of approaches and solutions to the challenges given by digital I&C. In order to study the effect of I&C design features and modelling approaches, an existing simplified PSA model has been complemented with fault tree models for a distributed reactor protection system. The paper summarises the failure modes taxonomy work.",
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author = "S. Auth{\'e}n and Jan-Erik Holmberg",
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Authén, S & Holmberg, J-E 2013, 'NPSAG/SAFIR/NKS project DIGREL : Digital I&C reliability' Paper presented at Nordic PSA Conference - Castle Meeting 2013, Stockholm, Sweden, 10/04/13 - 12/04/13, pp. Paper S5-1.

NPSAG/SAFIR/NKS project DIGREL  : Digital I&C reliability. / Authén, S.; Holmberg, Jan-Erik.

2013. Paper S5-1 Paper presented at Nordic PSA Conference - Castle Meeting 2013, Stockholm, Sweden.

Research output: Contribution to conferenceConference articleProfessional

TY - CONF

T1 - NPSAG/SAFIR/NKS project DIGREL 

T2 - Digital I&C reliability

AU - Authén, S.

AU - Holmberg, Jan-Erik

N1 - Project code: 77378

PY - 2013

Y1 - 2013

N2 - The OECD/NEA CSNI Working Group on Risk Assessment (WGRisk) has set up a task group called DIGREL to develop a taxonomy of failure modes of digital components for the purposes of probabilistic safety assessment (PSA). The taxonomy is aimed to be the basis of future modelling and quantification efforts. It will also help define a structure for data collection and to review of PRA studies. A parallel Nordic activity carried out a pre-study where a comparison of Nordic experiences and a literature review were performed. The study showed a wide range of approaches and solutions to the challenges given by digital I&C. In order to study the effect of I&C design features and modelling approaches, an existing simplified PSA model has been complemented with fault tree models for a distributed reactor protection system. The paper summarises the failure modes taxonomy work.

AB - The OECD/NEA CSNI Working Group on Risk Assessment (WGRisk) has set up a task group called DIGREL to develop a taxonomy of failure modes of digital components for the purposes of probabilistic safety assessment (PSA). The taxonomy is aimed to be the basis of future modelling and quantification efforts. It will also help define a structure for data collection and to review of PRA studies. A parallel Nordic activity carried out a pre-study where a comparison of Nordic experiences and a literature review were performed. The study showed a wide range of approaches and solutions to the challenges given by digital I&C. In order to study the effect of I&C design features and modelling approaches, an existing simplified PSA model has been complemented with fault tree models for a distributed reactor protection system. The paper summarises the failure modes taxonomy work.

KW - probabilistic safety assessment

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KW - reliability analysis

KW - failure mode

KW - taxonomy

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Authén S, Holmberg J-E. NPSAG/SAFIR/NKS project DIGREL : Digital I&C reliability. 2013. Paper presented at Nordic PSA Conference - Castle Meeting 2013, Stockholm, Sweden.