Transmission system reconfiguration for congestion management ensuring transient and voltage stability

Abstract

Transmission congestion management has been an important issue to power system operators and planners. As of the remedial/preventive actions, transmission reconfiguration has been employed to relieve congestion. In this paper, a methodology is proposed which optimally determines the system configuration to relieve congestion while respecting system security limits such as N-1 contingency criteria, voltage limits, voltage stability margin and transient stability. Most of these important criteria have been overlooked in the previous literature. The corresponding problem is solved using Benders decomposition method. The proposed methodology is evaluated using the IEEE 300-bus test system.