Contingency Analysis

What is contingency analysis?

Contingency analysis is a steady-state calculation used to assess the impact of the unplanned loss of any one element (n-1) or multiple elements (n-k) in a power system network.

Contingency Analysis in PowerFactory

The Contingency Analysis tool in PowerFactory offers a high degree of flexibility in configuration, calculation methods and reporting options. Contingency fault cases can be generated automatically or created and modified by the user. Single- and multiple-time-phase contingency analyses are available, both of which take into account controller time constants and thermal (short-term) ratings.

• AC, DC and AC linearised analysis methods, including regional assessment
• Outage levels: n-1, n-2, n-k
• Fast contingency screening with recalculation of critical cases using AC method
• Single and multiple time phase consideration
• Dynamic contingencies option for creating fault cases “on the fly”
• Remedial Action Schemes for flexible and dynamic analysis of post-fault actions
• Substation automation via switching schemes
• User-configured time-sweep analysis with parallelisation option
• Generator effectiveness and quad booster effectiveness
• Enhanced Fault Case management
• Comprehensive spreadsheet reporting features, including graphical ­visualisation of critical cases
• Tracing of individual contingency cases
• Contingency comparison mode
• Parallelised Contingency Analysis using multiple cores