AN EFFICIENT METHOD OF SYSTEM MATRIX FORMULATION FOR MULTIMACHINE POWER SYSTEMS WITH STATOR AND DAMPING WINDINGS TRANSIENTS INCLUDED

In this paper an efficient method of system matrix formulation for multimachine power systems with stator and damping windings transients included is presented. A singular perturbation analysis of the synchronous machine equations in the (d, q) reference frame reveals that reduced order linearized model of multi-machine power systems can be derived systematically from the fundamental machine equations. The application of the developed model in Small Signal (Dynamic) Stability Study of the power system of Serbia is given. The valuable discussion on the practical implementation of the models and dependence on the exciter type is given, too.