Rotating Rectifier Fault Detection in Brushless Excitation System of Synchronous Generators

摘要

In brushless synchronous generators, the armature winding of the exciter is mounted on the rotor shaft and connected to a rotating diode rectifier that feeds the field winding of the main generator. In this paper, a constant parameter Full-VBR model suitable for detailed simulation of converter connected synchronous machine is derived. Then, based on this model, a fault identification method is proposed for detection of rotating rectifier failure based on harmonic analysis of the exciter field current.