Reactive reserve determination using coherent clustering applied to the mexican norwest control area

Abstract

A methodology is used to evaluate, in an efficient manner, the availability of machine reactive reserve of an electric power system. This reactive reserve is evaluated on the areas affected due to a reactive power imbalance. The determination of buses or a sub region of a network that is vulnerable to voltage collapse is of extreme importance. This sub region is called Voltage Control Area (VCA). Voltage Control Areas are groups of buses stiffly interconnected and in which voltage magnitudes and voltage angles vary in a similar manner as a result of a contingency or operation condition changes. A technique to develop the Voltage Control Area is also presented in this paper, since the work developed uses strongly the Voltage Control Areas of the electrical network.

Identification of voltage control areas in power systems with large scale wind power integration

“…Some identification methodologies have been proposed to evaluate the current system condition; using representative scenarios (e.g. baseline operating conditions) without considering contingencies [1][2][3][4][5][6][7][8][9]. In [3], it is provided a method for determining VCAs, but the computational burden in this method is a critical issue since the QV curve has to be calculated for every bus in the system.…”