基于改进和声搜索算法的给水管网经济指标优化设计

Optimal Design of Water Supply Network Economic Index Based on Improved Harmonic Search Algorithm

针对标准和声搜索算法存在收敛不稳定、易陷人局部最优的缺点,为提高搜索结果全局最优化的稳定性,增强算法的普适性和鲁棒性,本文展开基于改进和声搜索算法对供水管网优化设计模型进行求解的研究,通过对模拟供水管网系统分别采用基本和声搜索算法与改进和声搜索算法对模型进行求解发现改进和声搜索算法所得到的最优解的平均计算时间为6.1s,具有求解效率高效、收敛稳定性高以及投资额较小的特点,在最优方案下运行各管段均能满足于各种工况。因此,采用改进的和声搜索算法对于给水管网经济指标优化设计求解具有极大的应用前景。

According to the standard of harmony search algorithm convergence is not stable and easily fall into local optima, the stability of the global optimization to improve search results, enhance the algorithm robustness and universality, this article launches the research on improved harmony search algorithm for solving the optimization design model of water supply network based on the simulation of water supply network system used the average time of harmony search algorithm and the improved harmony search algorithm to solve the model and find that the improved harmony search algorithm is the optimal solution for 6.1 s, with high solving efficiency, high stability and convergence characteristics of small investment,operation of the pipe in the best plan can meet in various working conditions. Therefore, the improved harmonic search algorithm has a great application prospect for the optimization design of the water supply network economic index.