| Title |
A Practical Tuning Method of Dual-Input PSS and its Application to Large Power System |
| Authors |
김동준(Kim, Dong-Joon) ; 문영환(Moon, Young-Hwan) ; 허진(Hur, Jin) ; 신정훈(Shin, Jeong-Hoon) ; 김태균(Kim, Tae-Kyun) ; 추진부(Choo, Jin-Boo) |
| Keywords |
Dual-Input PSS ; eigenvalue analysis ; frequency response |
| Abstract |
This paper describes the practical tuning method of dual-input PSS and its application to Muju P/P #2 with Proto PSS, which is based on DSP technology and uses both frequency and power. First, the model parameters of generator system used in this paper have been derived from the generator characteristic testing. Then, in the selection of PSS parameters, the Bode plot is plotted in order to tune the PSS's time constants which are able to compensate the phase lagging due to generator and excitation system. In addition, the eigenvalue analysis is also performed for determining a reliable PSS gain, K_{s}. Finally, the transient stability program has been utilized to verify the safe operation of Proto PSS against the predictable disturbances such as the AVR-step test and generator unloading test. In on-site test, the simulated results have been identically duplicated by implementing AVR step test in Muju P/P #2 with Proto PSS, which has the previously designed PSS parameters.s. |