| Cite this article: | 尚洪彬,桂子钦,段晓宁,等.基于混合蛙跳算法的自压微灌管网系统优化设计[J].灌溉排水学报,2021,(1):-. |
| Shang Hongbin,Gui Ziqin,Duan Xiaoning,et al.基于混合蛙跳算法的自压微灌管网系统优化设计[J].灌溉排水学报,2021,(1):-. |
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| Optimal Design of Self-pressure Micro-irrigation Pipe Network System Based on Shuffled Frog Leaping Algorithm |
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Shang Hongbin, Gui Ziqin, Duan Xiaoning, Hu Mingyu, He Wuquan
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College of Water Resources and Architectural Engineering Northwest A F University
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| Abstract: |
| 【Objective】This paper aims to solve the optimization problem of the pipeline layout and pipe diameter selection of self-pressure micro-irrigation pipe network system in order to save engineering investment.【Method】In this paper, the length of the pipe section, the pipe diameter are used as the decision variables,the allowable head difference of the branch pipe and lateral pipe, working pressure, pipe diameter, current velocity, etc. are used as constraints and the mathematical models of the optimization design of the two-way capillary self-pressure micro-irrigation pipe network and the one-way capillary self-pressure micro-irrigation pipe network are established with the minimum total investment of the pipe network as the objective function.The optimization problem is solved by using the shuffled frog leaping algorithm, which is able to optimize the pipeline layout and the pipe diameter combination.【Result】This study considered an irrigation district in Xinjiang. The result shows that the total investment required for the optimization design is 467943.3 yuan. Compared to the scheme designed according to the relevant specifications and experience, the optimized result obtained from the proposed model reduced the investment of the pipelines by 21.7%.【Conclusion】The mathematical model of self-pressing micro-irrigation pipe network based on the shuffled frog leaping algorithm can optimize pipeline layout and pipe diameter selection synchronously, which is suitable for the optimization of self-pressure micro-irrigation pipe network system in the irrigation area with guaranteed water source, small slope and relatively uniform ground. Application of the optimization model is able to save costs of pipe network obviously. Besides, the shuffled frog leaping algorithm has stable convergence performance,faster calculation speed and higher calculation accuracy. |
| Key words: Self-pressure micro-irrigation pipe network; Pipeline layout; Pipe diameter optimization; SFLA. |
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