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Based on a equivalent model of power network, voltage stability index is obtained from power transfer limitation in this paper. More, considering the regulation capability of voltage source, an on-line voltage instability assessment scheme is proposed. The index is defined to monitor remaining voltage regulation capability of voltage source point. As some voltage source has no enough regulation capability,...
The objective of the paper is to provide a brief overview of localized recursive techniques for assessment of severity of voltage disturbances potentially leading to voltage collapse, to quantify some of their limitations, especially when dealing with discontinuous state transitions due to contingencies and activation of generator limiters, as well as transients caused by a faster dynamics of the...
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