Adaptive Nonlinear Model Predictive Control of NOx Emissions under Load Constraints in Power Plant Boilers
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- Tang Zhenhao
- School of Automation Engineering, Northeast Electric Power University
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- Li Yanyan
- School of Automation Engineering, Northeast Electric Power University
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- Chai Xiangying
- School of Automation Engineering, Northeast Electric Power University
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- Zhang Haiyang
- School of Automation Engineering, Northeast Electric Power University
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- Cao Shengxian
- School of Automation Engineering, Northeast Electric Power University
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Abstract
<p>Nitrogen oxide (NOx) emissions are major pollutants of coal-fired boilers. An adaptive nonlinear model-predictive control approach is presented to reduce NOx emissions of power plant boilers. Firstly, the boiler load and the NOx emissions are dynamically predicted by a differential evolution-based least-square support vector machine. Subsequently, based on data-driven prediction modeling, a nonlinear optimization model, with load and capacity constraints, is proposed for NOx emission minimization. Finally, a differential evolution algorithm is used to solve this optimization problem and obtain the optimal control variable settings. Experimental results based on practical data indicate that the proposed approach exhibits a promising performance in the prediction of the boiler load and NOx emissions. Compared with that obtained using the normal control strategy, the proposed approach can reduce NOx emissions by 3.2% and 4.3% under increasing and decreasing loads, respectively.</p>
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 53 (1), 36-44, 2020-01-20
The Society of Chemical Engineers, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390846609794586112
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- NII Article ID
- 130007787506
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- NII Book ID
- AA00709658
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- ISSN
- 18811299
- 00219592
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- NDL BIB ID
- 030322827
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed