A new simple modeling and analysis of custom power controllers

This paper addresses the mainly issue of modeling and analysis of custom power controllers, a new generation of power electronics-based equipment aimed at enhancing there liability and quality of power flows in low-voltage distribution networks. The well-developed graphic facilities available in an industry standard power system package, namely MATLAB/SIMULINKMTDC, are used to conduct all aspects of model implementation and to carry out extensive simulation studies. Graphics-based models suitable for electromagnetic transient studies are presented for the following three custom power controllers: the distribution static compensator (D-STATCOM),the dynamic voltage restorer (DVR), and the solid-state transfer switch (SSTS).