Identificação de modelo LPV MIMO de sistema de injeção de óleo combustível em uma unidade termelétrica

Adriano Rodrigues de Paula; Nickson Ramon Tomé de Sousa; Fabrício Gonzalez Nogueira; Bismark Claure Torrico

doi:10.20906/CBA2022/3387

Adriano Rodrigues de Paula Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Ceará
Nickson Ramon Tomé de Sousa EDP Brasil, Ceará
Fabrício Gonzalez Nogueira Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Ceará
Bismark Claure Torrico Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Ceará

DOI: https://doi.org/10.20906/CBA2022/3387

Keywords: Boiler start-up process, System Identification, Linear parameter-varying systems, Thermal power plant, Fuel-oil injection system

Abstract

This work presents a modeling method for linear parameter-varying (LPV) system of a fuel oil injection plant of a 360 MW thermal power generation unit. The modeling of this system receives little attention from the literature and can be a relevant contribution for a more economical and sustainable operation of the boiler start-up procedure. The LPV model uses as inputs the opening of the fuel valve and the number of open burners, the outputs are the fuel pressure inside the pipeline and its consumption. The scheduling variable adopted is the number of open burners, considering its influence on the pressure and fuel oil consumption dynamics. The model was obtained through batch data collected from a real plant during its start-up operation. The model acquired in this article can help the design of more advanced control strategies to improve the overall plant operation.