Research on multivariable decoupling control system for combustion system of circulating Fluidized Bed Boiler

2009 ◽  
Author(s):  
Qi-Ming Cheng ◽  
Rui-Qing Guo ◽  
Xu-Feng Du
Keyword(s):  
Control System ◽  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Decoupling Control ◽  
Combustion System ◽  
Circulating Fluidized Bed Boiler ◽  
Multivariable Decoupling

Modeling and Simulation of Circulating Fluidized Bed Boiler Combustion System Based on Neural Network

2013 ◽  
Vol 706-708 ◽  
pp. 859-863
Author(s):  
Lin Lin Cui ◽  
Hua Lai ◽  
Xiao Qian Yu ◽  
Ming Jie Qi
Keyword(s):  
Neural Network ◽  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Paper Mill ◽  
Network Control ◽  
System Control ◽  
Combustion System ◽  
Circulating Fluidized Bed Boiler ◽  
Control Precision ◽  
Neural Network Algorithm

According to the multivariable coupling、 large time delay, non-linearity and time-varying and other difficulties of circulating fluidized bed boiler combustion system, a kind of control technology based on neural network to circulating fluidized bed boiler combustion system was presented. Actual parameter data of a paper mill in Kunming and neural network control principle were used in the establishment of a circulating fluidized bed boiler combustion system mathematical model and modified BP neural network algorithm training. Results of MATLAB simulation show that boiler combustion system control precision was effectively improved and good effects in production and application were got.

Performance and Operation Analysis of a Quadra Sectors Rotary Airheater Adopted by CFB Boiler

2014 ◽  
Vol 1070-1072 ◽  
pp. 1764-1768
Author(s):  
Zhan Guo Li ◽  
Zhen Ning Zhao ◽  
Zhi Qiang Wen
Keyword(s):  
Thermal Properties ◽  
Control System ◽  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Air Leakage ◽  
Circulating Fluidized Bed Boiler ◽  
Cfb Boiler ◽  
Operation Analysis ◽  
Operation Modes ◽  
Leakage Control

Based on the aspects of thermal properties, resistance properties, air Leakage Control and boiler output adaptability, the operation modes and their impact of a quad-sector rotary airheater adopted by a 330MWe circulating fluidized bed boiler are analyzed by tests. And the operation methods of Leakage Control System are concluded. In order to improve the reliability of rotary airheater with main and auxiliary motors, recommendations for improvement are extended.

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