The Application of Intelligent Control to Combustion Control System of CFB Boiler

Abstract

The combustion in circulated fluidized-bed (CFB) boiler is a complex and multi-variables coupling process. It is too difficult to build an exact mathematic model to describe the process. The main stream pressure control is an important subsystem of burning system, and it is difficult for the norm PID algorithm to control it. According to these, the human-simulated intelligent control technique is applied to the main steam pressure. It compensates the disadvantages of traditional control method and had perfect advantages in economy and in reality. The control rules of the controller can be modified, compensated and perfect in the practical operation. The practice shows that this controller has strong self-adaptability.