Study on Analysis Model for Transient Phenomena of Brushless Synchronous Generator

Abstract

Brushless excitation synchronous generators have been widely used because of their ease of operation and maintenance. Until now, in the analyses of transient phenomena, the brushless AC exciter and the permanent magnet generator (PMG) have been conventionally considered to be modeled transfer functions. In this paper, a new model for the brushless synchronous generator is proposed that can simulate the transient phenomena in the field circuit more accurately. The authors verified the model by comparison with the actual measurement of the excitation response of a 400MVA-class turbogenerator with brushless excitation.