A risk-based security index for determining operating limits in stability-limited electric power systems
- 1 January 1997
- journal article
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Systems
- Vol. 12 (3) , 1210-1219
- https://doi.org/10.1109/59.630463
Abstract
This paper is motivated by a concern that dynamic security limits based on the most severe contingency and scenario often result in operating restrictions corresponding to low or no risk but very high costs. A new risk-based security index is presented which accounts for both probability and impact of instability and is useful in determining operating limits. The approach is illustrated for a stability-limited system in Arizona.Keywords
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