Combustion and reaction

Online Tracking Simulation System of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler

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  • 1. Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Chongqing 400044, China
    2. School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China

Online published: 2023-10-23

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2023

Abstract

In this paper, an online tracking simulation system for the 660 MW ultra-supercritical circulating fluidized bed (USCFB) boiler is established, and a tracking simulation test is conducted for the cold start-up process of the boiler. The system comprises two parts: the USCFB boiler model and a tracking mechanism based on sliding mode control algorithm. The USCFB boiler model includes a water-steam system, an air-flue gas system, a material supply system, and an ash circulation system. The online tracking simulation system receives the same control signal as the plant and runs synchronously in digital space. The tracking mechanism updates model parameters to eliminate deviations between simulation values and measured values. The SMC-based multi-input, multi-output algorithm is based on a state-space model, providing two distinct advantages. Firstly, it enables more efficient elimination of deviations; secondly, it exhibits robustness against uncertainties associated with simulation model behavior and measurement noise. Finally, this paper conducts tracking simulation research on the cold start-up process of the boiler.

Cite this article

WANG Xiaosheng, YANG Chen, ZHANG Zonglong . Online Tracking Simulation System of a 660 MW Ultra-Supercritical Circulating Fluidized Bed Boiler[J]. Journal of Thermal Science, 2023 , 32(5) : 1819 -1831 . DOI: 10.1007/s11630-023-1868-x

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