Mathematical models of synchronous generators for different spatial distances of disturbance point

The models of the synchronous generator to calculate the steady-state and transient regimes including the transients of stator windings of generator without damper windings have been presented. The ability to use different mathematical approximations of the generator models depending on the spatial distance of the disturbance point has been shown. The examples of the generator models without damper windings at various types of disturbance have been given. To determine the currents and voltages as a functions of time the state-space technique and Park - Gorev transformation have been used. Solutions are obtained by means of program - integrated environment MathCAD Runge-Kutta method. The use of the models is possible for the networks containing synchronous generators and for the design objects containing generators.