大型蒸汽管网的在线仿真研究  

Simulation Investigation of Large-scale Steam Heating Network

作　　者：刘笑驰[1] 蔡瑞忠[1] 吕崇德[1] 

机构地区：[1]清华大学热能动力仿真及控制研究所,北京100084

出　　处：《系统仿真学报》2002年第3期397-399,402,共4页Journal of System Simulation

摘　　要：模型将蒸汽处理成为单相可压缩流体,将管网处理成为由节点和支路组成的一种网络结构。在仿真计算中,采用稀疏矩阵算法求解非线性方程组。同时,将管网模型与控制系统并列运行,通过实际运行数据辨识管路的阻力系数,使实际系统中管路的阻力变化实时反映到模型中来,达到在线仿真的目的.A steam heating network model is presented when the vapor is analyzed as a single-phase compressible stream with the whole heating system analyzed as a flow network composed of nodes and branches. The simulation method uses relaxation matrix algorithm to solve equations. Linked with control system, the actual operating data can be obtained and the resistance factors of pipelines can be identified. The simulation model thus can immediately respond to the changes of resistance of pipelines in operation. Therefore, the on-line simulation of large-scale steam heating network is realized.

关 键 词：在线仿真 参数辨识 城市集中供热 大型蒸汽管网 

分 类 号：TU995.2[建筑科学—供热、供燃气、通风及空调工程] TP399[建筑科学—市政工程]