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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Schuster, E. Romero, C. Zheng Yao Fengqi Si |
| Copyright Year | 2010 |
| Description | Author affiliation: Energy Research Center and the Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, Pennsylvania, USA (Schuster, E.; Romero, C.; Zheng Yao) || School of Energy and Environment, Southeast University, Nanjing, China (Fengqi Si) |
| Abstract | AES Cayuga Unit 1 is a 160MW unit, equipped with a low nitrogen oxide (NOx) firing system and an anhydrous ammonia (NH3), TiO2=V2O5=WO3 selective catalytic reduction (SCR) system for NOx 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 NOx 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. |
| Starting Page | 2184 |
| Ending Page | 2189 |
| File Size | 2308641 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424453627 |
| ISSN | 10851992 |
| DOI | 10.1109/CCA.2010.5611176 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-09-08 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Thyristors Boilers Real time systems Shock absorbers Cost function |
| Content Type | Text |
| Resource Type | Article |
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