Publication Details

Category Text Publication
Reference Category Journals
DOI 10.3390/su12030966
Licence creative commons licence
Title (Primary) Development of an optimal model for the Xiluodu-Xiangjiaba cascade reservoir system considering the downstream environmental flow
Author Dai, L.; Dai, H.; Liu, H.; Wang, Y.; Guo, J.; Cai, Z.; Mi, C.
Source Titel Sustainability
Year 2020
Department SEEFO
Volume 12
Issue 3
Page From art. 966
Language englisch
Abstract To explore the influence of the Xiluodu-Xiangjiaba cascade reservoir system on the appropriate environmental flow (AEF) of the Jinsha River, a multiobjective optimal cascade reservoir model was established with the aim of maximizing power generation while minimizing the downstream degree of AEF alteration. The AEF was determined using the range of variability approach (RVA). The optimal model was solved using an improved version of NSGA-II called INSGA2-DS. Inflows in typical normal and dry years were selected for optimization. The results show that in a normal year, power generation can be increased by 1.28% compared with that under the current regular operation conditions by prioritizing the maximization of power generation, in which case the degree of AEF alteration will increase by 13.86%. In contrast, the degree of AEF alteration will decrease by 22.53% if ecological protection is prioritized, but power generation will decrease by 0.62%. Similarly, in a dry year, power generation can be increased by 1.76% compared with that under the current regular operation conditions to maximize economic benefit, in which case, the degree of AEF alteration will increase by 4.95%. By contrast, the degree of AEF alteration can be decreased by 13.70% if the objective is AEF minimization, but power generation will decrease by 0.48%. These research results provide useful information for the formulation of ecological operation schemes involving cascade reservoirs on the Jinsha River.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=22716
Dai, L., Dai, H., Liu, H., Wang, Y., Guo, J., Cai, Z., Mi, C. (2020):
Development of an optimal model for the Xiluodu-Xiangjiaba cascade reservoir system considering the downstream environmental flow
Sustainability 12 (3), art. 966 10.3390/su12030966