MANEUVER AND EXCITATION SYSTEM OF GAS TURBINE SYNCHRONOUS MACHINE

摘要

The present invention relates to a static frequency converter and an excitation control system of a gas turbine synchronous machine. The static frequency converter and an excitation control system of a gas turbine synchronous machine comprises: a first phase control rectifier for excitation control system power conversion installed between excitation power and a synchronous generator; second and third phase control rectifiers for static frequency converter power conversion directly connected between the excitation power or start-up power and the synchronous generator; a disconnector having one side connected to the second phase control rectifier and the other side selectively connected with one of the excitation power and the start-up power according to a control signal; a connection switch connected between a connection nod between the second phase control rectifier and the third phase control rectifier and a connection nod between the first phase control rectifier and the synchronous generator, and connecting the first phase control rectifier and the second phase control rectifier in parallel when the disconnector is connected with the excitation power and turned on according to the control signal; and a controller individually controlling operations of the first phase control rectifier, the second phase control rectifier, the third phase control rectifier, the disconnector, and the connection switch.