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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water resources and hydroinformatics : Multi-agent group decision-making for the objectives of flood control, power generation and navigati...
Multi-agent group decision-making for the objectives of flood control, power generation and navigation of cascaded reservoirs
Author : Yongqiang Wang(1), Deyu Zhong(1), Baosheng Wu(1)
Abstract
Reservoir navigation is restricted by the reservoir operation of flood control and power generation. In
season, in order to protect the safety of the dam and downstream, water levels of cascaded reservoirs
need to be decreased to the flood control level, which reduced the generated energy and navigable
capacity. In dry season, unsteady flow from cascaded reservoirs by the peaking operation frequently
change with the power grid load changes, which results in the deterioration of navigable flow condition
reduction of navigable capacities. Therefore, the navigation of cascaded reservoirs is viewed as a
multi-agent group decision-making problem. To solve this problem, quantitative numerical simulation of
multi-objectives optimization model under different conditions are executed to obtain non-inferior set by
multi-objectives differential evolution algorithm. Then a grey correlation model of multi-agent group
decision-making for reservoirs operation is presented to give the grey correlation between these
objectives and the preference structures of decision-makers to different non inferior solution. According
evaluate the satisfaction of these preference structures of decision-makers, the solution with the highest
satisfaction is selected as the optimal equilibrium solution based on grey system theory. To verify the
feasibility and effectiveness, the proposed approach is employed in the cascaded reservoirs in lower
Jinsha River. The simulation results show that the obtained solution can meet various limited constraints
and balance the relationship among the reservoirs navigation, flood control and power generation.
Furthermore, operation rules of cascaded reservoirs can be generalized by analyzing the variation law of
discharged flow and water level over period in the optimal equilibrium solution.
File Size : 390,197 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water resources and hydroinformatics
Date Published : 28/08/2015
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