Study on the coordinated control of the bed temperature and the main steam pressure in the circulating fluidized bed boiler

摘要

The bed temperature and the main steam pressure of the circulating fluidized bed boiler have the characteristics of nonlinearity, time variation and multi variable coupling, conventional control method is difficult to achieve the desired control effect. Therefore, based on the above problems, this paper designs a coordinated control system based on particle swarm optimization PID algorithm to the control system of bed temperature and main steam pressure. The simulation results show that the bed temperature and the main steam pressure of the system meet the control requirements, and ensure the stability of the primary air volume, which can get good control effect.