| Title |
An Improved Investment Priority Decision Mettled for the Electrical Facilities Considering the Reliability of Distribution Networks |
| Authors |
박창호(Park Chang-Ho) ; 채우규(Chae Woo-Kyu) ; 장성일(Jang Sung-Il) ; 김광호(Kim Kwang-Ho) ; 김재철(Kim Jae-Chul) ; 박종근(Park Jong-Keun) ; 최정환(Choi Jung-Hwan) |
| Abstract |
This paper proposes a improved investment priority decision method of the facilities considering the reliability of distribution networks. The proposed method decides a investment order of the facilities combining, by fuzzy rules, the investment priority decision of KEPCO and the priority decision considering reliability evaluation indices. Where reliability evaluation indices are SAIFI(System Average Interruption Frequency Index) and SAIDI(System Average Interruption Duration Index), as referred to evaluation index for sustained interruption. The reliability analysis method of distribution networks applied in this paper utilizes analytic method, where the used reliability data is historical data of KEPCO. Particularly, we assumed that the failure rate increased as the equipment ages. To verify the performance of the proposed method, we applied it with the planned projects to reinforce the weak facility electrical facilities in KEPCO in 2004. The evaluation result showed that, under a limited budget, the reliability of the KEPCO in the Busan region using the proposed method can be enhanced than using the conventional KEPCO's method. Therefore, the results verify the proposed method can be efficiently used in the actual priorities method for investing the electrical facilities. |