The stability improvement of a round rotor synchronous machine by using a two-way parallel field winding is examined. The characteristic machine parameters are derived varying the electrical angle between the two magnetic axes of the field windings. By using a simplified mathematical model, a comparison between a conventional synchronous machine and the new machine with a modified field winding is performed in order to evaluate the stability bounds. The new machine shows an improved dynamic performance in the presence of large perturbations. The stability bounds increase if the electrical angle between the two magnetic axes of the field windings grow up to an optimal value of about 60 degrees (for constructional constraints, 60 degrees is the maximum angle between the two magnetic axes of the field windings).
Stability improvement of round rotor synchronous machine by using a two-way parallel field winding
BRUNO, OTTORINO;LANDI, ALBERTO;SANI, LUCA
2000-01-01
Abstract
The stability improvement of a round rotor synchronous machine by using a two-way parallel field winding is examined. The characteristic machine parameters are derived varying the electrical angle between the two magnetic axes of the field windings. By using a simplified mathematical model, a comparison between a conventional synchronous machine and the new machine with a modified field winding is performed in order to evaluate the stability bounds. The new machine shows an improved dynamic performance in the presence of large perturbations. The stability bounds increase if the electrical angle between the two magnetic axes of the field windings grow up to an optimal value of about 60 degrees (for constructional constraints, 60 degrees is the maximum angle between the two magnetic axes of the field windings).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
