基于和声搜索算法的自压式树状管网优化设计  

Optimal Design of Gravity Tree-type Pipe Network Based on Harmony Search Algorithm

作　　者：马朋辉 李援农[1] 胡亚瑾 崔魁 曲强[3] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100 [2]山东农业大学勘察设计研究院,山东泰安271000 [3]中国灌溉排水发展中心,北京100054

出　　处：《中国农村水利水电》2016年第6期14-18,共5页China Rural Water and Hydropower

基　　金：高效节水灌溉新技术集成示范(NTKJ2015-07-02);国家高技术研究发展计划("863"计划)项目(2011AA1005A4)

摘　　要：采用线性规划模型与非线性规划模型进行自压式树状管网优化设计。第一级优化模型采用非线性规划模型,以连续管径为设计变量,以管网投资最小为目标函数,采用和声搜索算法求解获得一组近似最优管径组合。第二级优化模型采用线性规划模型,以标准管径所对应的管长为设计变量,以管网投资最小为目标函数,采用单纯形法进行求解,可以得到管径和相应管长的最优组合,此处的标准管径是在前述优化结果的基础上确定的,是从可用标准管径集合中选出的包含所求得连续管径值的4种相邻管径的最优管径集合。实例结果表明,该算法具有良好的优化性能,所得结果可直接应用于生产。Linear programming model and nonlinear programming model are adopted in this paper to design gravity tree-type pipe net- work. In the first-level optimization, the nonlinear programming model is adopted. The successive pipe diameter is set as the decision variation and the minimum investment of pipe network is used as the objective function; Then, based on harmony search algorithm, a serious of optimal diameters can be obtained. In the second-level optimization, the linear programming model is adopted. The length o{ standard diameter is set as the decision variation and the minimum investment of pipe network is used as the objective func- tion, the linear programming model is set up. Simplex method is used to solve the second-level optimization design model and the op- timal combination of diameter and length can be obtained. The optimal diameter set that contains four adjacent diameters of each pipeline are based on the result of the first-level nonlinear programming model and can be determined from the maximum standard di- ameter set that available. The application shows that proposed model and algorithm are effective and the optimization result can be directl.y used for construction.

关 键 词：和声搜索算法 自压树状管网 优化设计 

分 类 号：S274.2[农业科学—农业水土工程] TV93[农业科学—农业工程]