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Contingency Analysis - Future Advanced

In layman's terms, Contingency Analysis (CA) is a 'what if' scenario simulator that evaluates, provides and prioritizes the impacts on an electric power system when problems occur. A contingency is the loss or failure of a small part of the power system (e.g. a transmission line), or the loss/failure of individual equipment such as a generator or transformer. This is also called an unplanned 'outage'. Contingency analysis is a computer application that uses a simulated model of the power system, to: • evaluate the effects, and • calculate any overloads, resulting from each outage event. Contingency Analysis is essentially a 'preview' analysis tool. It simulates and quantifies the results of problems that could occur in the power system in the immediate future. CA is used as a study tool for the off-line analysis of contingency events, and as an on-line tool to show operators what would be the effects of future outages. This allows operators to be better prepared to react to outages by using pre-planned recovery scenarios. Future CA as described in this use case template is an enhanced application that takes advantage of the improved communications architecture being defined by IECSA for the future. It will use wide area data and other data to improve its reliability, and to analyze power system security (safe and stable operation) for a wide operating region. Future CA will also incorporate intelligence features to resolve execution problems by using its knowledge base of previous experience in solving difficult situations.

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