| Title |
Development of Multi-Reservoir System Operation Rule Curves for Hydropower Maximization in the Nam Ngum River Basin of Lao PDR |
| Authors |
이현재(Lee, Hyun-Jae) ; 장웅철(Jang, Woong-Chul) ; 이일주(Lee, Il-Ju) ; 이진희(Lee, Jin-Hee) |
| DOI |
https://doi.org/10.12652/Ksce.2022.42.6.0803 |
| Keywords |
저수지 운영; 규정 곡선; 동적 계획법; 수력; 남능강 Reservoir operation; Rule curve; Dynamic programming; Hydro-power; Nam Ngum River |
| Abstract |
The Lao government is continuously developing hydro-power dams in addition to the existing eight power plants in the Nam Ngum River basin and is expanding the power capacity of the existing power plants to meet the expected increase in electricity demand. Accordingly, the Lao government has requested an update on the existing reservoir operating rule curve in order to run the power plants efficiently. To this end, this study reviewed the current independent operating system as well as the joint operating system inorder to maximize the annual power generation produced by a power plant by using CSUDP, general-purpose dynamic programming (DP) software. The appropriate operating regulation curve forms (URC/LRC, MRC) were extracted from the DP results, and theannual power generations were simulated by inputting them as the basic operating data of the reservoir operation set of the HEC-ResSim program. By synthesizing the amount of the annual power generation simulated, the existing operation regulationcurve, the operational performance, and the opinion of the field operator, the optimal reservoir operation regulation curves that maximize the annual power generation of the target power plant were developed. Results revealed that a system operating inconjunction with the reservoir produces about 2.5 % more power generation than an independent reservoir due to the synergistic effect of the connection. |