灌溉排水学报2025，Vol.44Issue(1)：59-65,7.DOI:10.13522/j.cnki.ggps.2024243
基于改进NSGA-Ⅱ算法的加压滴灌管网优化设计
Optimizing pressurized drip irrigation pipe network design using an improved NSGA-Ⅱ algorithm and engineering depreciation cost method
摘要
Abstract
[Objective]Optimizing pipe networks is a critical aspect of drip irrigation design.This paper proposes a multi-objective method to optimize pressurized drip irrigation network design and evaluate its applicability.[Method]The optimization method incorporates two objectives:minimizing the cost per unit area and improving network reliability by reducing the variance of surplus head at unfavourable nodes in the network.A mathematical model was developed,accounting for depreciation costs and operation and management expenses.The proposed model was applied to a pressurized drip irrigation network in an irrigation area in Xinjiang.The performance of the improved NSGA-Ⅱ(Non-dominated Sorting Genetic Algorithm Ⅱ)was compared with the original algorithm by analysing the Pareto frontier solutions.[Result]The Pareto frontier solution obtained by the improved NSGA-Ⅱ algorithm is better than that obtained by the original algorithm.When the cost of a unit area was the same,the optimal network obtained by the improved NSGA-Ⅱ algorithm was more reliable than that obtained by the original algorithm.Across 50 independent calculations,the uniformity index value of the improved NSGA-Ⅱ and the original algorithm was 0.371 and 0.404,respectively.The cost of a unit area calculated using the improved NSGA-Ⅱ algorithm was 792.92 yuan/hm2,compared to 851.89 yuan/hm2 budgeted in the original project.The optimisation calculated by the proposed method reduced the variance of surplus head at the unfavourable nodes in the network from 0.15 to 0.06.[Conclusion]The improved NSGA-Ⅱ algorithm is more effective than the original algorithm,offering a practical approach to reducing costs and enhancing the reliability of pressurized drip irrigation pipe networks and similar hydraulic systems.关键词
改进NSGA-Ⅱ算法/优化模型/管网优化设计/加压滴灌管网/多目标优化Key words
improved NSGA-Ⅱ algorithm/optimization model/pipe network optimization design/pressure drip irrigation network/multi-objective optimization分类
建筑与水利引用本文复制引用
樊凯,霍雪飞,王文娥,胡笑涛,冉聃颉,皮滢滢..基于改进NSGA-Ⅱ算法的加压滴灌管网优化设计[J].灌溉排水学报,2025,44(1):59-65,7.基金项目
国家重点研发计划项目(2022YFD1900402) （2022YFD1900402）
新疆维吾尔自治区重大科技专项项目(2023A02002) （2023A02002）
