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Ensuring transient security usually requires the re-dispatch of generators to eliminate potential transient instability after a contingency, but this has commercial implications in a power market. A further complication is that different candidate contingencies may motivate different re-dispatch strategies because the advanced generator group is different in each case, or the sensitivity of the stability margin to power exchanges between generators is different. The paper develops an approach that attempts to address all of these significant issues in deregulated competitive power systems.
Date of Conference: 5-8 April 2004