| Title |
Dynamic Response Improvement of Stand Alone Engine-Generator System using Double Voltage Detection Method |
| Authors |
이동희(Lee, Dong-Hee) ; 안진우(Ahn, Jin-Woo) |
| Keywords |
Engine Generator ; AVR ; PID |
| Abstract |
In this paper, peak detector of generator's output voltage and variable gain controller are introduced for a fast dynamic response. The conventional r,m.s, signal detected has inherent time delay, and the dynamic response of generator using conventional PID controller has some problem in sudden load change. In this paper, the peak detector and signal selector with variable gain controller is used to overcome this problem. The main controller can check the voltage state from the peak detector. When a sudden load change, the over-voltage and under-voltage signal from peak detector change the controller's gain and exciter's current reference. The proposed scheme can improve the dynamic response, which is verified from experimental test of 200kW diesel engine-generator. |