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Original scientific paper
https://doi.org/10.1080/00051144.2020.1733792

One approach to temperature distribution control in thermal power plant boilers

Aleksandra Marjanović ; School of Electrical Engineering, University of Belgrade, Belgrade, Serbia
Sanja Vujnović ; School of Electrical Engineering, University of Belgrade, Belgrade, Serbia
Željko Ðurović ; School of Electrical Engineering, University of Belgrade, Belgrade, Serbia

Fulltext: english, pdf (2 MB) pages 273-283 downloads: 148* cite
APA 6th Edition
Marjanović, A., Vujnović, S. & Ðurović, Ž. (2020). One approach to temperature distribution control in thermal power plant boilers. Automatika, 61 (2), 273-283. https://doi.org/10.1080/00051144.2020.1733792
MLA 8th Edition
Marjanović, Aleksandra, et al. "One approach to temperature distribution control in thermal power plant boilers." Automatika, vol. 61, no. 2, 2020, pp. 273-283. https://doi.org/10.1080/00051144.2020.1733792. Accessed 30 Nov. 2021.
Chicago 17th Edition
Marjanović, Aleksandra, Sanja Vujnović and Željko Ðurović. "One approach to temperature distribution control in thermal power plant boilers." Automatika 61, no. 2 (2020): 273-283. https://doi.org/10.1080/00051144.2020.1733792
Harvard
Marjanović, A., Vujnović, S., and Ðurović, Ž. (2020). 'One approach to temperature distribution control in thermal power plant boilers', Automatika, 61(2), pp. 273-283. https://doi.org/10.1080/00051144.2020.1733792
Vancouver
Marjanović A, Vujnović S, Ðurović Ž. One approach to temperature distribution control in thermal power plant boilers. Automatika [Internet]. 2020 [cited 2021 November 30];61(2):273-283. https://doi.org/10.1080/00051144.2020.1733792
IEEE
A. Marjanović, S. Vujnović and Ž. Ðurović, "One approach to temperature distribution control in thermal power plant boilers", Automatika, vol.61, no. 2, pp. 273-283, 2020. [Online]. https://doi.org/10.1080/00051144.2020.1733792

Abstracts
Optimization of the combustion control process in a tangentially fired pulverized coal boiler, to achieve uniform temperature distribution, is discussed in the paper. This issue is even more critical in those thermal power plants which are not equipped with modern systems for combustion enhancement, such as low NOx burners. Research has shown that the temperature distribution inside the boiler of such power plant can be controlled by adjusting firing, through coal redistribution among the mills. Furthermore, disturbed flame symmetry (i.e. non-uniform temperature distribution in the boiler) is reflected in a large difference between the output temperatures measured on the left and right sides of the boiler. Given the non-stationary conditions typical of thermal power plant boilers, an adaptive control approach is proposed, based on PI controllers which are very popular in industry and widely accepted. Self-tuning of the PI controllers is based on dynamic model parameters derived applying the weighted recursive least squares (WRLS) method to real data recorded at Nikola Tesla B thermal power plant in Serbia, whose nominal power is 650 MW. The same model was later used to test the proposed control approach.

Keywords
Self-tuning controllers; adaptive PI control; system identification; weighted recursive least squares algorithm; thermal power plant; temperature distribution control

Hrčak ID: 239870

URI
https://hrcak.srce.hr/239870

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