| 城市供水管网优化设计两步法 |
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| 引用本文： | 张世泽,袁一星,李玉华.城市供水管网优化设计两步法[J].哈尔滨工业大学学报,2009,41(4):111-117. |
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| 作者姓名： | 张世泽 袁一星 李玉华 |
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| 作者单位： | 哈尔滨工业大学,市政环境工程学院,哈尔滨,150090
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| 基金项目： | 黑龙江省自然科学基金(重点)资助项目 |
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| 摘 要： | 为改善城市供水管网的设计方案,从经济性和可靠性角度出发,应用数学建模与最优化理论,对城市供水管网优化设计进行系统研究.提出两步优化的思想,即首先进行供水管网拓扑结构优化,然后进行管径组合方案优化.供水管网拓扑结构优化以单位流量年计算费用作为管段的权值,采用改进的狄克斯特拉算法进行求解,管径组合方案优化采用遗传算法进行求解.分别编制相应计算程序,对某一管网进行优化设计.研究结果表明由该方法产生的优化设计方案在经济性、水力性和可靠性方面均好于传统设计方案,同时两步优化的解无论在收敛速度方面还是在解的优化效果方面都要好于单纯应用遗传算法所求得的解.
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| 关 键 词： | 供水管网 优化设计 可靠性 遗传算法 管网拓扑结构 狄克斯特拉算法 |
A two-step method for optimal design of water distribution system |
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| ZHANG Shi-ze,YUAN Yi-xing,LI Yu-hua.A two-step method for optimal design of water distribution system[J].Journal of Harbin Institute of Technology,2009,41(4):111-117. |
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| Authors: | ZHANG Shi-ze YUAN Yi-xing LI Yu-hua |
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| Affiliation: | (School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China,) |
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| Abstract: | To optimize the water distribution system(WDS) from the view of economy and reliability,a two-step optimization method is proposed by adopting heuristic-based genetic algorithms(GA) and Dijkstra arithmetic to optimize the network topology to obtain the layout of main pipes.In the first step,the network topology was optimized by the modified Dijkstra arithmetic;in the second step,the layout of main pipes was optimized by genetic algorithms.The corresponding calculation processes were organized respectively and a practical network was designed with the two-step optimization method.The result shows that the proposed approach consistently outperforms the traditional design and the conventional non-heuristic-based GA approach in terms of convergence and calculation efficiency. |
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| Keywords: | water distribution system optimal design reliability genetic algorithms network topology Dijkstra arithmetic |
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