Multi-objective Ecological Operation Model of Cascade Hydropower Reservoirs

摘要

This paper, based on the analysis of the nature and characteristics of ecological operation, is to discuss the influence of cascade reservoirs operation on the reservoirs themselves and on the ecological environment of the downstream channels, and to further analyze and calculate the minimum ecological discharge that satisfy the demands of ecosystem health. Based on the previous study, a multi-objective ecological operation model will then be proposed and established, with the maximum hydroelectric benefit, the maxim water supply benefit and the minimum ecological environment water shortage as objectives, and the reservoir water balance equation, the reservoir water storage restrictions, the reservoir water supply and the water demand as constraints. Moreover, the non-dominated sorting genetic algorithm II (NSGA-II) will also be proposed as the solution technique. The practicability and effectiveness of the integrated model has been verified by case study.