I. I N T R O D U C T I O N Modern power grid:; are becoming more and more stressed with the load demands increasing rapidly. The voltage collapses which occurred recently have again drawn much attention to the issue of stability security margins in power systems [I]. The small signal stability margins are highly dependent upon such system factors as load flow feasibility boundaries, minimum and...

We present a comparison of several device parameters obtained by fully two-dimensional physical device simulation of several device parameters and measurements. Several features for direct extraction of either extrinsic or intrinsic (de-embedded) parameters sets from AC-simulation were implemented in the three-dimensional device simulator Minimos-NT [1]. The scattering parameters (S-parameters)...

A new small signal stability analysis method is presented. The method is based on the computation of the transition matrix over a specified time interval that normally corresponds to one cycle operation of the system. The method is applicable to any system and it is especially suited to switching systems with or without nonlinear elements. A examples of the method application is presented. The ...