INFIT系统在超超临界发电机组汽温和协调控制中的应用  

Application of INFIT System For Steam Temperature and Coordination Control in Ultra-supercritical Power Unit

作　　者：徐建中[1] 陈益飞[1] 

机构地区：[1]江苏射阳港发电有限责任公司,江苏射阳224345

出　　处：《江苏电机工程》2015年第3期72-74,77,共4页Jiangsu Electrical Engineering

摘　　要：直流锅炉发电机组由于控制对象大滞后,加之传统的分散控制系统(DCS)方式的局限,普遍存在负荷升降速率低、参数波动大和燃烧煤种适应性差等问题。分析了大型直流锅炉动态特点和实际控制应注意的策略,针对某超临界600 MW机组投产后控制特性的不足,对5号机组控制系统进行优化改造,即增加了1套INFIT实时优化控制系统,介绍了该优化控制系统的基本特点和主要控制逻辑,并利用实际运行曲线说明了这套系统应用的有效性。Due to the existence of large delay in the control of some objects, issues such as low temperature increase rate, large parameter fluctuation, and poor adaptability for different kinds of coal are frequently encountered in once-through boilers employing traditional DCS. Through analyzing the dynamic characteristics of large-scale once-through boilers and practically adopted control strategy, we have performed optical transform in the control system of 5# unit by installing the INFIT real-time control system. The basic characteristics and control logic of this system are introduced in this paper, and its effectiveness is also illustrated by using actual operation curve.

关 键 词：直流锅炉 INFIT系统 优化 安全评估 

分 类 号：TK229[动力工程及工程热物理—动力机械及工程]