600 MW直流锅炉升炉阶段循环水量控制策略  

Control Strategy of Water Circulation During Once-through Boiler Start-up

作　　者：洪军[1] 王洪跃[1] 毕小龙[1] 司风琪[1] 徐治皋[1] 

机构地区：[1]东南大学能源与环境学院,江苏南京210096

出　　处：《锅炉技术》2006年第6期16-20,55,共6页Boiler Technology

摘　　要：针对600 MW超临界直流锅炉升炉阶段循环水控制系统的多反馈环节提出了回路递推法,与传统的矩阵分析法相比,具有结构简单,信息丰富,容易理解和掌握的特点。因为整个循环水回路控制系统的设计好坏直接影响到给水泵的出力及直流锅炉运行的安全,所以对提出的控制策略进行仿真试验,结果表明循环水(汽水分离器)控制回路的带宽必须低于给水控制回路的带宽。说明该控制策略在实际工程应用中是切实有效的。A loop-by-loop approach is used to analyze multivariable water flow and collecting vessel-level control problems during 600 MW supercritcal once-through boiler start-up. With the easy intuitivism and plentiful information. This method is suitable to apply in power plant than matrix approach. It is shown that the circulation loop must be tuned so that its bandwidth is less than the feed water loop bandwidth, effective valuable is remarkable.

关 键 词：循环水量控制 直流锅炉 过程控制 带宽 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]