Title
Integrated Real-time Optimization of Boiler and Post-combustion System in Coal-based Power Plants via Extremum Seeking.
Abstract
AES Cayuga Unit 1 is a 160MW unit, equipped with a low nitrogen oxide (NO x) firing system and an anhydrous ammonia (NH 3), TiO 2=V 2O 5=WO 3 selective catalytic reduction (SCR) system for NO x emission control. An ammonium bisulfate (ABS) probe was retrofit to the SCR to monitor ABS formation in real-time with the ultimate goal of minimizing air preheater (APH) plugging (ABS concentration) by regulating the APH bypass damper. Recent work on static optimization of coal-based power plants has played a crucial role in improving overall efficiency. However, static optimization falls short in dealing with real-time scenario changes (i.e., cycling unit load, coal quality, firing system maintenance conditions, subsystem failures, plant aging, etc.). Extremum seeking (ES) is proposed in this work to optimally tune boiler operation in order to minimize NO x production in real-time. The effectiveness of the ES adaptive controller in keeping the system at an optimal operation point in presence of input disturbances and system changes is demonstrated through simulations based on identified models of the boiler, SCR and APH systems. © 2010 IEEE.
Year
DOI
Venue
2010
10.1109/CCA.2010.5611176
CCA
Keywords
Field
DocType
air pollution control,ammonia,boilers,coal,combustion,optimisation,reduction (chemical),steam plants,AES Cayuga Unit 1,NH3,NOx,air preheater,ammonium bisulfate,anhydrous ammonia,boiler,coal-based power plants,emission control,extremum seeking,firing system,integrated real-time optimization,low nitrogen oxide,maintenance conditions,plant aging,post-combustion system,power 160 MW,selective catalytic reduction,subsystem failures
Combustion,Automotive engineering,Control theory,Unit load,Control theory,Computer science,Waste management,Coal,Thyristor,Boiler (power generation),Selective catalytic reduction,Air preheater
Conference
Volume
Issue
ISSN
null
null
1085-1992
Citations 
PageRank 
References 
1
0.36
2
Authors
4
Name
Order
Citations
PageRank
Eugenio Schuster19531.96
Carlos E. Romero2122.11
Zheng Yao310.36
Fengqi Si433.45