基于遗传算法的燃气管道阻力系数辨识研究  

Research on Resistance Coefficient Identification of Gas Pipeline Based on Genetic Algorithm

作　　者：赵羽 蔡磊[1] 管延文[1] 刘文斌[1] 聂隆梅 ZHAO Yu;CAI Lei;GUAN Yanwen;LIU Wenbin;NIE Longmei

机构地区：[1]华中科技大学环境科学与工程学院,湖北武汉430074 [2]武汉市车都天然气有限公司,湖北武汉430000

出　　处：《煤气与热力》2022年第5期I0001-I0006,I0010,共7页Gas & Heat

摘　　要：结合遗传算法与水力计算模型,将城市燃气管网的实际数据与阻力系数辨识后水力计算结果进行对比,以建立与实际情况相符的管网仿真系统。以某地3个气源枝状高压管网为例,将节点实测压力与阻力系数辨识后节点计算压力进行对比,结果表明辨识后的管网水力计算结果相对误差在工程设计的范围内。基于MATLAB图形用户界面GUI开发阻力系数辨识和水力计算软件。软件载入相应数据后,能够进行水力计算及阻力系数辨识,用户界面友好,操作方便,结果直观。Combined with genetic algorithm and hydraulic calculation model,the actual data of urban gas pipeline network is compared with the hydraulic calculation results after resistance coefficient identification to establish a pipeline network simulation system that is consistent with the actual situation.Taking the branched high-pressure pipe network of three gas sources in a certain place as an example,the measured pressures at the nodes are compared with the calculated pressures at the nodes after the resistance coefficient identification.The results show that the relative error of the hydraulic calculation results of the pipe network after the identification is within the scope of the engineering design.The software for resistance coefficient identification and hydraulic calculation is developed based on MATLAB graphical user interface GUI.After loading the corresponding data,the software can conduct hydraulic calculation and resistance coefficient identification.The user interface is friendly,with convenient operation and intuitive results.

关 键 词：遗传算法 MATLAB软件 阻力系数辨识 水力计算模型 

分 类 号：TU996.6[建筑科学—供热、供燃气、通风及空调工程]