ABSTRACT
Most of the literature on Lyapunov-like energy functions (reviewed in the previous chapter) assume linear voltage-dependent load models that enable the reduction of power system network, retaining only the generator internal nodes. The generators are also modeled by the simplest model, neglecting saliency ( )′ ≠x xd q . Field flux decay and damper windings are neglected and only the swing equations are included for the analysis of synchronous transient stability. The transfer conductances (TCs) in the reduced admittance matrix of the network are neglected to construct the energy function. It is to be noted that although the transmission network can be reasonably modeled as lossless, the TCs are mainly introduced due to the load impedances with substantial resistive components.
