1. Multi-fragmental and multi-phase availability models of the safety-critical I&C systems with two-cascade redundancy
- Author
-
Vyacheslav Kharchenko, Yuriy Ponochovnyi, and Ievgen Babeshko
- Subjects
safety ,availability ,reliability ,i&c modeling ,multi-fragmental models ,multi-phase models ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 ,Telecommunication ,TK5101-6720 - Abstract
Traditional availability, reliability, and safety models face the dimension problem due to a huge number of components in modern systems, motivating further research in this field. This paper focuses on multi-fragmental and multiphase models for availability and functional safety assessment of the information and control (I&C) systems with two-cascade redundancy considering design faults manifestation during operation. The methodology of the research is based on Markov and semi-Markov chains with the utilization of multi-phase modeling. Several multi-phase models are developed and investigated considering different conditions of operation and failures caused by version faults. The case study of the research is based on the analysis of safety-critical nuclear power plant I&C systems such as the reactor trip systems developed using the programmable platform RadICS.
- Published
- 2024
- Full Text
- View/download PDF