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Research and analysis of 300MW boiler combustion system based on fuzzy control

The boiler combustion system is a complex controlled object. According to the industrial production process of the thermal power plant, the boiler combustion control system can be divided into three subsystems: the fuel control system, the air supply control system and the induced draft control system. For the control subsystem of air handling and induced draft, the traditional PID control can achieve satisfactory control effect. This paper does not elaborate, so it focuses on the research and analysis of the fuel control subsystem. Since the fuel control subsystem has large delay, large inertia and can not obtain its accurate model, the conventional PID control can not obtain the desired control effect, so the fuzzy adaptive PID control algorithm combining the conventional PID and fuzzy control theory is adopted. Finally, the system is simulated by Simulink in Matlab, and the simulation results show that the fuzzy adaptive PID not only has good dynamic characteristics, but also has good adaptability, and has received good control effect.