Influence of the Solid Rotor Electrodynamic Properties of Turbogenerators.

The equivalent circuit of a turbo-generator is presented as one with distributed constants in the solid rotor. From this circuit results the transient study at constant rotational speed of the machine. The electrodynamic transients at variable speed are described by nonlinear ordinary differential equations that can be solved with the aid of a computer by using the approximate equivalent circuit in which the solid rotor is substituted by eddy current circuits with lumped constants derived from the synthetic time constant of the solid rotor.