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This paper presents an application of the Bayesian networks (BN) to substation reliability analysis. First part of the paper describes BN used to construct simple nodes, second shows the methodology used in constructing models of complex systems. A new model to represent dependent outages is introduced in the paper with a discussion how to avoid cycles when creating network models. A combination of...
This paper discusses the Western Electricity Coordinating Council's (WECC) experience in the collection of transmission outage data with an emphasis on common-mode and dependent outage events, and is a result of ongoing research carried out by the WECC Reliability Performance Evaluation Working Group (RPEWG). The outage data statistics of WECC 230-, 345-, and 500-kV transmission lines constructed...
This paper is a result of ongoing activity carried out by Probability Applications for Common Mode Events (PACME) Task Force under the Reliability Risk and Probability Applications (RRPA) Subcommittee. The paper is intended to constitute a valid source of information and references about dealing with common-mode outages in power systems reliability analysis. This effort involves reviewing published...
This paper presents a brief summary of the basic common mode failure models and the relevant equations for their inclusion in power system reliability studies. The basic differences in the models are illustrated by numerical examples. Models for incorporating transmission outages associated with enhanced failure rates due to adverse weather are also illustrated. These models are combined with common...
The authors examine the effect of the system load level and of selected dependent outages on the reliability performance of a composite generation and transmission system using security constrained adequacy assessment. The dependent outages included in the analysis are common mode and station originated events. The studies are extended to examine the effect on the system performance of selected switching...
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