ABSTRACT
This chapter introduces concepts of power expressed as active, reactive, and apparent. It deals with modeling the synchronous machine from an electric network standpoint. The chapter discusses static and dynamic load models. In electrical power systems one is mainly concerned with the flow of electrical power in the circuit rather than the currents. A significant portion of all the electric power presently used is generated, transmitted, and distributed using balanced three-phase voltage systems. The representation of these elements by means of appropriate mathematical models is critical to successful analysis of system behavior. The chapter considers the case when the three single-phase sources are rearranged to form a three-phase Δ-connection. The stator circuit consists of three-phase armature windings carrying alternating currents. The rotor circuit consists of field and amortisseur windings. The use of the summation rule and concepts of complex power are advantageous in solving problems of power system analysis.
