Supplementary Control of Air–Fuel Ratio Using Dynamic Matrix Control for Thermal Power Plant Emission

Taehyun Lee, Eungsu Han, Un-Chul Moon and Kwang Y. Lee
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Taehyun Lee: School of Mechanical System Engineering, ChungAng University, HukSuk-dong DongJak-Gu, Seoul 06974, Korea
Eungsu Han: School of Electrical and Electronics Engineering, ChungAng University, HukSuk-dong DongJak-Gu, Seoul 06974, Korea
Un-Chul Moon: School of Electrical and Electronics Engineering, ChungAng University, HukSuk-dong DongJak-Gu, Seoul 06974, Korea
Kwang Y. Lee: Department of Electrical and Computer Engineering, Baylor University, Waco, TX 76798-7356, USA

Energies, 2020, vol. 13, issue 1, 1-15

Abstract: This paper proposes a supplementary control for tighter control of the air–fuel ratio (AFR), which directly affects the environmental emissions of thermal power plants. Dynamic matrix control (DMC) is applied to the supplementary control of the existing combustion control loops and the conventional double cross limiting algorithm for combustion safety is formulated as constraints in the proposed DMC. The proposed supplementary control is simulated for a 600-MW drum-type power plant and 1000 MW ultra-supercritical once-through boiler power plant. The results show the tight control of the AFR in both types of thermal power plants to reduce environmental emissions.

Keywords: air–fuel ratio; combustion control; dynamic matrix control; power plant control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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