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.


Oddbjørn Gjerde

WP2 Lead
+47 99 730 027
Oddbjørn Gjerde
WP2 Lead


Reference in CINELDI