An extended framework for reliability analysis of ICT for power systems
2011 (English)In: 2011 IEEE PES Trondheim PowerTech: The Power of Technology for a Sustainable Society, POWERTECH 2011, IEEE , 2011, 6019343- p.Conference paper (Refereed)
This paper presents an extended probabilistic framework for reliability analysis of Information and Communication Technology (ICT) for power systems. The framework is based on Probabilistic Relational Models (PRMs) and includes the analysis of both primary equipment and the supporting ICT systems. The framework also separates between the functional structure and the physical infrastructure. To be able to analyze architectural properties, such as redundancy, the framework is extended with logical gates which are based on AND and OR logic. The gates serve and important purpose when integrating the framework into an analysis tool that supports PRMs. The problem without logical gates is the dynamic sizing of the conditional probability tables which depend on the number of parent nodes. This problem is solved by using aggregation functions. The application of the extended framework is demonstrated by applying to an example system-architecture with two types of redundant configurations.
Place, publisher, year, edition, pages
IEEE , 2011. 6019343- p.
Bayesian networks, Logical Gates, Power Systems, Probabilistic Relational Models, Reliability, Substation Automation, Aggregation functions, Analysis tools, Architectural properties, Conditional probability tables, Functional structure, Information and Communication Technologies, Parent node, Primary equipments, Probabilistic framework, Redundant configuration, Power transmission, Reliability analysis, Standby power systems, Sustainable development, Information technology
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-49925DOI: 10.1109/PTC.2011.6019343ScopusID: 2-s2.0-80053368557ISBN: 978-142448419-5OAI: oai:DiVA.org:kth-49925DiVA: diva2:460692
2011 IEEE PES Trondheim PowerTech: The Power of Technology for a Sustainable Society, POWERTECH 2011; Trondheim; 19 June 2011 through 23 June 2011
QC 201112012011-11-302011-11-302014-05-05Bibliographically approved