Dynamic output feedback based robust controller design for selective catalytic reduction systems

Baigeng Wang; Shurong Li

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Dynamic output feedback based robust controller design for selective catalytic reduction systems

机译：Dynamic output feedback based robust controller design for selective catalytic reduction systems

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摘要

Selective catalytic reduction (SCR) is an effective way to deal with the flue gas at the outlet of coal-fired boiler. The working process of SCR systems is to use the ammonia (NH_3) adsorbed on the catalyst to react with nitrogen oxide (NO_x) to generate nitrogen and water. This paper presents an observer based dynamic output feedback control for SCR systems. Since NH_3 coverage ratio cannot be measured directly, a reduced order observer is designed first. And then it is proved that the error of observer tends to 0 by using Lyapunov function. Furthermore, the dynamic equation of the composite including the observer state is obtained. Finally, the controller is designed to adjust the rate of NH_3 injection in order to satisfy the industrial demand.

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来源
《International journal of system control and information processing》 |2021年第4期|263-277|共15页
作者
Baigeng Wang; Shurong Li;
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作者单位

Automation School, Beijing University of Posts and Telecommunications;

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原文格式 PDF
正文语种英语
中图分类自动化技术、计算机技术;
关键词
SCR; Selective catalytic reduction; Dynamic output feedback; Reduced order observer; Robust control; Lyapunov function;

Dynamic output feedback based robust controller design for selective catalytic reduction systems

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