450t/h CFB锅炉协调控制系统分析与改进  

Analysis of Coordinated Control System of CFB Boiler in Baoding Cogeneration Power Plant and Its Improvement

作　　者：解森[1] 姚丽欣[1] 韩璞[2] 王晓燕[2] 

机构地区：[1]保定热电厂,河北保定071051 [2]华北电力大学控制科学与工程学院,河北保定071003

出　　处：《电力科学与工程》2006年第3期26-29,共4页Electric Power Science and Engineering

摘　　要：CFB(循环流化床)锅炉是新一代高效、低污染清洁型燃烧锅炉,在国内得到广泛应用。但CFB锅炉发电机组自动控制系统尤其是协调控制系统设计不成熟,投运一直是个难题。在分析河北省保定热电厂原协调控制策略的基础上提出了改进措施:完善了一次调频功能;设计了汽机侧的“压力偏差回拉功率”回路,以限制汽机侧调门的动作速率;将直接能量平衡策略改为间接能量平衡策略;为克服锅炉燃料调节的滞后性使用了燃料前馈。最后对改进后系统的调节性能进行了评价。Based on the analysis of the original CCS of Baoding Cogeneration Power Plant, some improvements are presented. The frequency regulation has been modified; The ＂press deviation dragging load＂ loop has been designed in order to limit the response speed of turbine valve; The direct Energy Balance （DEB） strategy has been replaced by Indirect Energy Balance （IEB） strategy; Fuel feedforward has been used to compensate the time delay of the CFB boiler. The performance of the improved CCS is also evaluated.

关 键 词：CFB锅炉 COS 调频 间接能量平衡 燃料前馈 

分 类 号：TM621.2[电气工程—电力系统及自动化]