Modeling and Simulation of a Power Plant Drum Boiler Combustion Control System
1989; Elsevier BV; Volume: 22; Issue: 11 Linguagem: Inglês
10.1016/s1474-6670(17)53134-1
ISSN2589-3653
AutoresR.T. Pena, Luís A. Aguirre, Eduardo Mazoni Andrade Marçal Mendes,
Tópico(s)Advanced Control Systems Optimization
ResumoThis paper describes a power plant combustion control system modeling and simulating work. The system is part of an integrated steel making plant, which belongs to Acominas, a company located in Minas Gerais State - Brazil. Three boilers, working in parallel, feed main steam, at 60 kgf/cm2 - 485 C to a single steam collector drum. The combustion control system was designed in a boiler following strategy to burn, simultaneously, four different fuels. The boiler furnace combustion control system is, as usual, made out of two main control loops, fuel and air, that are interlocked. The combustion control system process was modeled using input-output type models, assuming a linear behavior for the plants in each control loop. The developed model was simulated in an IBM-PC XT compatible microcomputer. The simulation results show that the fuel control loops, under certain restrictions, can work all in automatic. Also, a new air fuel interlock strategy was modeled and showed good results in the simulation. The conclusions of this study are being successfuly implemented in the actual plant.
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