Improvement of Transient Performance of Synchronous Generator via Excitation Control

Abstract

This paper investigates the improvement of a transient performance of a synchronous generator in a one-machine system via the excitation control. First, in regard to the optimal control of the excitation, the effects of the weighting coefficients on the optimal response are examined. The optimal control is approximately realized by the feedback from the state variables, and the obtained responses are compared with the optimal responses. Furthermore, the system responses, in a case of being installed with a fast acting excitation control system with a stabilizer, are calculated and compared with those by the optimal control system.