EFFICIENT OBJECT-ORIENTED POWER-SYSTEMS SOFTWARE FOR THE ANALYSIS OF LARGE-SCALE NETWORKS CONTAINING FACTS-CONTROLLED BRANCHES

This paper presents the methodology used in the development of a new g eneration of soft ware suitable for the analysis and control of large- scale power networks containing FACTS-controlled branches. A Newton-Ra phson load flow is used in this paper to emphasise the benefits and dr awbacks introduced by the Object Oriented Technology when applied to ' number-crunching' power engineering solutions. The Newton-Raphson algo rithm exhibits quadratic convergence far cases with FACTS-Controlled b ranches. Full details of the prowess of this algorithm are given in a companion paper. C++ has been used to develop compact and easy-to-main tain power systems conventional sparsity software. To aid portability the software has been developed under the UNIX(TM) environment.