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【摘要】 建立了电耗为目标函数的多冷却塔循环水系统数学模型,先用计算软件MATLAB确定循环水最佳出塔温度,然后用商业软件GAMS求解出电耗最小时的分配系数,并给出了最优结构;文章最后部分给出了详细的案例分析,将优化前后风机和水泵的电耗,总电耗加以比较;结果表明,优化后风机和水泵的电耗均有所降低,总电耗降低多达20%左右,节能效果明显。 【Abstract】 An energy saving optimization model of multi-cooling towers circulating water system was established.Firstly,the optimal temperature at leaving tower of circulating water was ascertained by MATLAB software,then,matching coefficient was solved when the power consumption was minimal by NLP(non-linear programming) in GAMS-a business software,finally,the optimal structure was given.In the last part of this paper,a case study was presented in detail,the power comsumption of fans and pumps,total power consumption under optimal matching had been compared with the original results.Analyses suggest that all of power consumption are decreased after optimization.the total power consumption has decreased by about 20%. 【关键词】 循环水系统; 电耗; 优化 【Key words】 circulating water system; power consumption; optimization