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Estimating the loading limit taking into account voltage collapse areas

J. Barquín, T. Gómez, F.L. Pagola

This paper addresses the computation of the margin to the maximun power transfer limit. A non-linear \"sensitivity\" theory is presented and used to propose a new algorithm for this computation. The proposed algorithm is computationally efficient, allow a great variety of power system models, including reactive power output limits, and the optative consideration of heuristic knowledge about voltage collapse areas. The algorithm is tested in a 6-machines test system, a proposed benchmark system for voltage instability studies.

Keywords: Maximun power transfer, Voltage collapse, Margins

IEEE Transactions on Power Systems. Volume: 10 Issue: 4 Pages: 1952-1962

Published on paper: November 1995.

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