基于改进遗传算法的给水管网优化设计  

Optimal design of water distribution network based on improved genetic algorithm

作　　者：王瑛[1] 魏戈[1] 

机构地区：[1]兰州理工大学土木工程学院,甘肃兰州730050

出　　处：《供水技术》2009年第6期25-28,共4页Water Technology

摘　　要：针对基于简单遗传算法的给水管网优化设计在供水安全性和经济性方面存在的不足,提出了适于管网优化设计的改进遗传算法。改进遗传算法采用罚函数技术和自适应策略,有效地解决了简单遗传算法管网优化设计中水力性能较差的问题。以典型环状给水管网为例的计算结果表明,改进遗传算法设计方案的经济性和供水安全性都优于简单遗传算法设计方案,充分说明改进遗传算法用于给水管网优化设计具有实用性和有效性。Aiming at the shortcomings of safety and economy ina design of water distribution network by simple genetic algorithm （SGA） method, an improved genetic algorithm （IGA） for optimal model of water distribution network was suggested. Penalty factor and self-adaptive strategy were applied in the improved genetic algorithm, which solved the issue of poor hydraulic performance in original design of water distribution network by simple genetic algorithm. Finally, the improved genetic algorithm was verified in the typical water distribution network, the results showed some more advantages than the simple genetic algorithm in economy and safety, which indicated that the improved genetic algorithm method was practical and effective for an optimal design of water distribution network.

关 键 词：改进遗传算法 给水管网 优化设计 罚函数 

分 类 号：TU991.33[建筑科学—市政工程]