Comparison of Linear Programming Model and Particle Swarm Optimization Algorithm in Optimization of Reservoir Rule Curves used Hedging Policy

Authors

1 Associated. Profprofessor, Water Engineering Departman, Gorgan University of Agricultural Sciences and Natural Resources.

2 M.Sc student in Water Resource Engin. Faculty. Of Water and Soil, Univ. of Zabol, Iran

Abstract

Water stored in the reservoir is one of the main sources of water supply in arid regions. Therefore, optimal operation of it is of utmost importance, especially in drought duration. In this study, optimal operation of Voshmgir dam using continues hedging policy optimized by linear programming (LP) and Partial swarm optimization Algorithm (PSO) that located in Golestan province north of Iran was investigated. The objective function is minimization of the Shortage index. In order to examine the effects of used hedging policy, 3 continuous drought years was considered. To evaluate the results of the models, evaluation criteria such as the percentage of water supply, reliability, vulnerability and stability indicators was used. The threshold volume changes per month was extracted and the base hedging rule curve for reservoir was presented. Evaluating the results of two models showed stability index in linear programming with 41.78 model was much higher than particle swarm algorithm with 6.416. Which indicates the higher performance of this model in the optimization of hedging policy in Voshmgir reservoir.

Keywords

References

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Water and Soil Science
Volume 32, Issue 1
January 2022
Pages 27-38

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