火电机组先进控制与优化软件的设计与应用  

Design and Applications of Advanced-control and Optimization Software for Thermal Power Plants

作　　者：杨兵[1] 孙德敏[1] 弓岱伟[1] 郝卫东[2] 

机构地区：[1]中国科学技术大学自动化系,安徽合肥230027 [2]山东电力研究院,山东济南250002

出　　处：《热能动力工程》2006年第4期405-408,共4页Journal of Engineering for Thermal Energy and Power

基　　金：山东电力研究院基金资助项目(2003-A19)

摘　　要：为改善国内火电机组控制效果、提高运行经济性,采用面向对象技术及模块化设计方法,开发了一套先进控制与优化软件。该软件在DCS工作站后台运行,并利用DCS的组态工具制作操作界面,充分利用现有DCS的强大功能,其操作方法易于被运行人员熟悉;统一的数据预处理机制和对心跳信号的监测保证了安全性;内嵌多种通信机制使其适用于各种现场情况,既独立又可相互协作的算法模块结构使其配置灵活,可扩展性好。已实现了一种经过改进的广义预测控制算法和一种简化后的自适应在线稳态优化算法。使用该软件对一个电站锅炉烟气含氧量实施先进控制,显著改善了控制效果。结果表明,该软件投资少、效果好、现场应用方便。To improve the control effectiveness of thermal power plants in China and enhance their operational efficiency,the authors have developed a set of advanced-control and optimization software through the adoption of an object-oriented technology and a modularized design method.The software can operate at the rear platforms of DCS work stations and prepare operational interfaces with the help of DCS configuration tools.It can make full use of powerful functions of existing DCS and its operation methods are easy for operators to get acquainted with.Unified data pretreatment mechanism and monitoring of heart-beat signals can guarantee required safety.Multiple built-in communication mechanisms make it suitable for various on-site conditions.The algorithm module structure,which can be either independent or mutually cooperative,yields a flexible configuration with a good expandability.Two kinds of improved generalized prediction control algorithm and a kind of simplified self-adaptive on-line steady-state optimization algorithm have been realized.The use of this software for implementing the advancedcontrol of the flue gas oxygen-content of a utility boiler has markedly improved control effectiveness.It has been found that the software under discussion involved less investment outlays and has facilitated on-site applications,achieving good results in general.

关 键 词：火电机组 先进控制与优化软件 DCS 氧量校正 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]