Available transfer capability calculations

Abstract

This paper reports on the features and implementation of a program for available (transmission) transfer capability (ATC) calculations. A novel formulation of the ATC problem has been adopted based on full AC power flow solution to incorporate the effects of reactive power flows, voltage limits and voltage collapse as well as the traditional line flow (thermal loading) effects. An efficient continuation power flow approach with adaptive localization enhances speed in processing a large number of contingencies to determine ATC for each specified transfer. Test and performance results for practical power system models are presented.