Steady State Voltage Sensitivity Analysis of the Mexican Interconnected System's Norwest Control Area

E.T. González, J.G. Calderón Guizar, and A.I. Ruiz (Mexico)


Sensitivity matrix, Reactive power, Eigenvalue


This paper reports the results of a steady state voltage sensitivity analysis of the Norwest Control Area which is part of the Mexican Interconnected System. Additionally, a scalar index for assessing the proximity of an operating condition to voltage instability is presented. This index is based on the minimum eigenvalue of the sensitivity matrix (SQLV)^-1. In this work, the sensitivity matrices do not consider the coupling between active power and phase angles to the reactive power and voltage magnitudes.

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