Optimal power rescheduling for system security using stochastic second-order load flow
Authors:
A. O. Ekwue
R. N. Adams
Affiliation:
National Power, Technology and Environmental Centre, Kelvin Avenue, Leatherhead, Surrey KT22 7SE, UK
Department of Electrical/Electronic Engineering, Queen Mary College (University of London), Mile End Road, London E1 4NS, UK
Abstract:
This paper proposes a method for optimal corrective rescheduling of generation for system security applications in power system real-time control. Because of input data (load and generation) uncertainty due to measurement error, forecast in accuracy or demand variation, a full stochastic load flow model based on a second-order solution algorithm is used for system monitoring and a linear programming formulation based on sensitivity coefficients is used to obtain minimal-cost adjustments of generation patterns. The routines were developed on a minicomputer.