| Title |
Voltage Control of a Synchronous Generator for Ship using a Compound Type Digital AVR |
| Authors |
박상훈(Park, Sang-Hoon) ; 이상석(Lee, Sang-Seuk) ; 유재성(Yu, Jae-Sung) ; 이수원(Lee, Su-Won) ; 원충연(Won, Chung-Yuen) |
| Keywords |
Synchronous Generator ; Reactor ; Power CT ; Compound Type Digital AVR |
| Abstract |
In this paper, an exciter current control of a synchronous generator for ships using a compound type digital automatic voltage regulator (DVAR) in order to provide a constant output voltage of the generator is presented. The compound type DAVR is composed of a controller part to adjust output voltage and an power source unit to supply power to the exciter. The controller part, which generates the PWM switching pattern via the PI controller, drives a power MOSFET for bypass to limit the SG's exciter current. The power source unit part is parallel connected to an output terminal of the generator through a reactor and a power CT. The residual magnetic flux of SG provides exciter current to the exciter through the reactor during the initial running or no load state and load current supplies field current to the exciter through the power CT during loading state. This paper confirmed an experiment to verify the validity of compound type DAVR system for controlling output voltage of synchronous generator. |