ABSTRACT
This chapter considers only Linear networks. The balanced three-phase networks studied thus far are readly described by two types of formulation for Kirchhofes voltage and current laws. The balanced aspect allows three-phase elements to be described by equivalent positive-sequence elements with respect to a potential neutral or ground point. The separate interconnected areas developed historically, or are the result of very low Megawatts (MW) power transmission capability between very large load-generation regions. Low MW interchange capability is why the Rocky Mountains in the United States break the eastern interconnection from the western. Since the impact of an individual area diminishes with electrical distance into a large MW capacity interconnection. The chapter presents a systematic method to construct the bus impedance matrix one element at a time until all transmission lines, shunt elements, and generators that determine power flow have been included.
