超超临界锅炉主汽温控制系统的建模研究  

Modeling Research on USC Boiler's Main Steam Temperature Control System

作　　者：韩璞[1] 袁世通[1] 张金营[1] 

机构地区：[1]华北电力大学河北省发电过程仿真与优化控制工程技术研究中心,河北保定071003

出　　处：《计算机仿真》2013年第12期115-120,共6页Computer Simulation

摘　　要：为了提高大型超超临界锅炉的控制水平,最首要的工作就是要了解锅炉运行的热工特性并在此基础上建立适用于控制器设计的模型。针对传统传递函数模型精确度不高的问题,分析了目前超超临界锅炉主汽温控制系统的特点,挖掘机组已有的运行数据,总结了数据选取经验和数据预处理方法,利用修正后的量子粒子群算法进行传递函数参数辨识,进而得到锅炉燃烧系统中主汽温控制系统的线性传递函数模型,使主汽温控制系统的大惯性特性定量化,给出了主汽温控制系统的辨识结果。得到的传递函数为主蒸汽温度的自动控制系统设计与优化提供了参考。Understanging the thermal characteristic and establishing suitable models are the first steps in order to improve the control strategy of large scale Ultra Supercritical （USC） boilers. For the modeling precision is not quite satisfactory based on the traditional transfer function, we analyzed the principal and characteristics of the USC boiler＇s main steam temperature control system. And then, the standards of data selection and methods of data pretreatment were summarized. Based on the useful data exploited from the historical operating data of the power plant, all parameters of the transfer function werer identified with the revised quantum particle swarm optimizing algorithms, and the main steam temperature control system＇s linear transfer function model was built, by which the quantitative results of delay time of the main steam temperature control system were given. Meanwhile, the identification results have been given, which can be a reference of the design or optimization of the main steam temperature control system.

关 键 词：超超临界锅炉 主汽温控制 传递函数 量子粒子群 建模 

分 类 号：TK229.2[动力工程及工程热物理—动力机械及工程]