Security Inclusive Model-Based Systems Engineering for Nuclear Reactor Development

Year
2024
Author(s)
Shannon Eggers - Idaho National Laboratory
Andrew Hahn - Sandia National Laboratories
Peter Suyderhoud - Idaho National Laboratory
Ross Hays - Idaho National Laboratory
Abstract
Formal model-based systems engineering (MBSE) merges a model, systems thinking, and systems engineering to graphically represent the boundaries, context, and behavior of interconnected systems to enable successful design, development, and use of engineered systems throughout the project lifecycle. These tools, however, often are focused on functionality, performance, and safety and do not incorporate additional concerns introduced by use of operational technology. Since nuclear reactor vendors may use MBSE to design and develop new advanced and small modular reactors, integration of digital risk management and cybersecurity-by-design capabilities into MBSE will provide an improved process for ensuring reactors are built with safety and security in mind. This research first identifies cybersecurity and digital risk gaps in the current use of MBSE prior to presenting a planned approach for incorporating digital risk management and cybersecurity-by-design into an MBSE project based on the Microreactor Applications Research Validation and EvaLuation (MARVEL) microreactor. This report also describes how the MARVEL MBSE project will be integrated with cybersecurity modeling and simulation capabilities using the Advanced Reactor Cyber Analysis and Development Environment (ARCADE).