| Title |
Optimization Application for Assessment of Total Transfer Capability Using Transient Energy Function in Interconnection Systems |
| Authors |
김규호(Kim, Kyu-Ho) ; 김수남(Kim, Soo-Nam) ; 이상봉(Rhee, Sang-Bong) ; 이상근(Lee, Sang-Keun) ; 송경빈(Song, Kyung-Bin) |
| Keywords |
Transient Stability ; Energy Margin ; Lyapunov Direct Method ; UEP ; TTC ; RPF ; SQP |
| Abstract |
This paper presents a method to apply energy margin for assesment of total transfer capability (TTC). In order to calculate energy margin, two values of the transient energy function have to be computed. The first value is transient energy that is the sum of kinetic and potential energy at the end of fault. The second is critical energy that is potential energy at controlling UEP(Unstable Equilibrium Point). It is seen that TTC level is determined by not only bus voltage magnitudes and line thermal limits but also transient stability. TTC assessment is compared by the repeated power flow(RPF) method and optimization method. |