| 引用本文: | 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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| 摘要: |
| 【目的】为了解决自压微灌管网系统布置与管径优化设计的问题,节省工程投资造价。【方法】本文以各级管道的管段长度、管径为决策变量,支毛管允许水头差、工作压力、管径、流速等为约束条件,管网总投资最小为目标函数,分别建立了双向毛管布置和单向毛管布置的自压微灌管网数学模型,并采用混合蛙跳算法进行求解,优化管网的布置及各级管道的管径,达到节省投资的目的。【结果】以新疆某灌区为研究对象,采用该方法对其管网系统进行优化设计,结果表明,优化设计方案所需总投资为467943.3元,与依据相关规范和经验进行设计的原方案相比,管网投资降低了21.7%。【结论】该优化设计方法对自压微灌管网系统能够实现管网系统布置与管径的同步优化,可以应用到在水源有保证、地面坡度不大且较为均匀的自压微灌管网系统的优化设计中,该模型优化结果节省投资明显,混合蛙跳算法收敛性能稳定,计算速度较快,具有较高的计算精度。 |
| 关键词: 自压微灌管网;管网系统布置;管径优化;混合蛙跳算法 |
| DOI： |
| 分类号:S274.2 |
| 基金项目:国家科技支撑计划课题(2015BAD24B02)；国家级2018年大学生创新创业训练计划项目(201810712084) |
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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. |
