Stochastic Petrinet model for dependability assessment and integrated power grid and ICT support
Challenge and objective
- Importance and consequences of inconsistencies between physical and cyber system states.
- The ICT and power system experts use different failure taxonomy, from IFIP and IEC, respectively, that inhibits good collaboration.
Work performed
- Metric for inconsistencies defined.
- Consequences of inconsistencies assessed by use of the modelling approach Stochastic Activity Networks.
- A sensitivity analysis has been performed to identify the most critical parameters affecting this inconsistency.
- Comparison of failure taxonomy from IEC and IFIP, and proposed alignment.
Significant results
- The study has shown the direct and high impact of value failures, i.e. sensor or controller data which are valid but wrong.
Impact for distribution system innovation
- Common taxonomy of ICT and power system experts is a prerequisite for improvement of analysis of the cyber physical power system.
- Name
- Oddbjørn Gjerde
- Title
- WP2 Lead
- Organization
- SINTEF Energi AS
Reference in CINELDI
