Análise e Identificação Experimental do Sistema de Injeção de Óleo Combustível em uma Usina Termelétrica a Carvão Durante o Processo de Partida das Unidades Geradoras

Abstract

Within the new context of growth in the supply of energy from renewable sources, conventional generating units had to adapt to become more flexible, that is, to start and stop more frequently. This brought a great challenge for coal-fired thermoelectric plants, that were originally designed for constant base load operation. Although there are many studies on thermal processes in general, there are few publications that approach modeling and simulation of startups of this kind of power plant. This work presents an analysis of the start-ups of the generating units of a coal-fired power plant and, through an approach of linear parameter varying-systems (LPV), a study of experimental identification of the fuel oil supply system to the burners was developed using real data collected from the power plant’s control systems. The modeling of this system is essential to obtain a more economical and more sustainable operation, especially during transitory operating regimes.