燃煤电厂锅炉烟气脱硝系统前馈串级调节控制方法  

Feedforward cascade control method for boiler flue gas denitrification systemof coal-fired power plant

作　　者：臧润泽 张翼[2] 李龙 朱传哲 顾徐鹏[2] Zang Runze;Zhang Yi;Li Long;Zhu Chuanzhe;Gu Xupeng(Huaihe Energy&Electric Power Group Co.,Ltd.,Huainan Anhui 232000,China;East China Electric Power Design Institute Co.,Ltd.,Shanghai 200063,China;Shandong Chuangyu Environmental Protection Technology Co.,Ltd.,Jinan Shandong 250000,China)

机构地区：[1]淮河能源电力集团有限责任公司,安徽淮南232000 [2]华东电力设计院,上海200063 [3]山东创宇环保科技有限公司,山东济南250000

出　　处：《煤化工》2023年第5期104-107,共4页Coal Chemical Industry

基　　金：安徽省重点研究与开发计划项目(202105J02010023)。

摘　　要：为有效控制燃煤电厂锅炉烟气脱硝系统的脱硝精准度,提出针对性的前馈串级调节控制方法。首先确定脱硝系统在前馈串级调节控制过程中存在的相关影响因素,并根据影响因素分析结果明确脱硝系统前馈串级调节控制器的设计流程;再基于控制器设计流程,优先设计系统扰动状态观测器,通过状态观测器估计系统脱硝时存在的扰动估计值,并依据扰动值估计结果对控制器实施前馈补偿;同时根据前馈补偿结果对控制器实施参数整定,完成控制器的设计;最后通过控制器实现脱硝系统前馈串级调节控制。验证结果表明:该控制方法控制性能好,控制精度高。To effectively control the denitrification accuracy of coal-fired power plant boiler flue gas denitrification system,a pertinent feedforward cascade control method was proposed.Firstly,the relevant influencing factors were identified in the feedforward cascade control process of the denitrification system,and based on the analysis results of the influencing factors,the design process of the feedforward cascade controller of the denitrification system was specified.And based on the controller design process,the priority was given to designing a system disturbance state observer,through which the disturbance value during the system denitrification was estimated,and feedforward compensation for the controller was implemented based on the disturbance estimation result.Meanwhile,based on the feedforward compensation results,the controller parameter was adjusted and the design of the controller was completed.Finally,the feedforward cascade control of the denitrification system was achieved through the controller.The verification results indicated that this control method had good control performance and high control accuracy.

关 键 词：燃煤电厂 烟气脱硝 前馈串级调控 控制器设计 调节控制方法 

分 类 号：X773[环境科学与工程—环境工程] TP273[自动化与计算机技术—检测技术与自动化装置]