| Title |
Evaluation of Transfer Capability based on Load Supplying Capability Calculation using Nonlinear Primal-Dual Interior Point Method |
| Authors |
정민화(Jeong, Min-Hwa) ; 이병준(Lee, Byeong-Jun) ; 송길영(Song, Gil-Yeong) |
| Keywords |
계통계획 ; 부하공급능력 ; 전력수송능력 ; 수송능력지수 ; 비선형 주 ; 쌍대 내점법 ; |
| Abstract |
This paper presents a new methodology that can evaluate transfer capability of composite power systems from the adequacy point of view in power system planning stages. First of all, to evaluate practical load supplying capability, nonlinear optimization problems of maximum load supplying capability(MLSC) and economic load supplying capability(ELSC) are formulated and solved by nonlinear primal-dual interior point method. Here, physical constraints considered in the optimization problems are the limits of bus voltage, line overloading, and real & reactive power generation. Also, an evaluation method of transfer capability is presented based on margins calculated by the MLSC and ELSC. Especially, to evaluate transfer capability flexibly, simple indices such as expected MLSC, transfer capability margin, and power not supplied are respectively proposed by considering (N-1) line outage probability. Numerical results on IEEE RTS 24, IEEE 118, and IEEE 300 bus system show that the proposed algorithm is effective and useful for power system planning stages. |