Multiobjective Optimal Operation of Gated Spillways
| Autor: | Masoud Amirkhani, Ali Azarnivand, Omid Bozorg-Haddad, Hugo A. Loáiciga |
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| Rok vydání: | 2017 |
| Předmět: |
Engineering drawing
Spillway Engineering Mathematical optimization Optimization problem business.industry 0208 environmental biotechnology Sorting 02 engineering and technology Agricultural and Biological Sciences (miscellaneous) Multi-objective optimization 020801 environmental engineering Water level Downstream (manufacturing) Genetic algorithm Stage (hydrology) business Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Journal of Irrigation and Drainage Engineering. 143 |
| ISSN: | 1943-4774 0733-9437 |
| DOI: | 10.1061/(asce)ir.1943-4774.0001132 |
| Popis: | This paper develops an optimal, multistage operation of gated spillways for the Karkheh Reservoir, Iran. In each stage of the proposed method, the opening of the gates is proportional to the water level of the reservoir. Two novelties are introduced in this work. The first one is consideration of the absence of a spillway or the existence of blocked spillway gates as two operation scenarios. The second novelty is attributed to using improvement of dam safety as an objective function rather than a constraint of the optimization problem. A genetic algorithm (GA) was implemented for determining the optimal opening of gates to minimize downstream damages. The nondominated sorting genetic algorithm-II (NSGA-II) was applied to optimize the two objectives of minimizing downstream damages and reducing the probability of dam overtopping. This paper’s results reveal that increasing the number of stages of gate opening improved the value of the objective functions. On the other hand, the lack of spillways or... |
| Databáze: | OpenAIRE |
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