Closed-Loop Combustion Optimization Control With Applications to an Ultra-Supercritical Coal-Fired Boiler

2019 ◽  
Author(s):  
Shuoshuo Cao ◽  
Yiguo Li ◽  
Xiao Wu ◽  
Jiong Shen
Keyword(s):  
Closed Loop ◽  
Optimization Control ◽  
Combustion Optimization

Simulation of Supercharged Boiler Combustion Optimization Control Based on Radiant Energy Signal

2012 ◽  
Vol 614-615 ◽  
pp. 8-13
Author(s):  
G.Y. Zhou ◽  
Gao Su ◽  
Fei Du ◽  
Zhong Gen Li
Keyword(s):  
Control System ◽  
Dynamic Behavior ◽  
Radiant Energy ◽  
Steam Pressure ◽  
Boiler Furnace ◽  
System A ◽  
Optimization Control ◽  
Flame Detector ◽  
Combustion Optimization ◽  
Energy Signal

According to the phenomenon that large lagging and the fluctuation of the fuel regulation of the supercharged boiler, the dynamic behavior of the steam pressure is simulated to study the internal pure delaying in this paper. The flame detector system was used to collect the real-time picture of the flame in the boiler furnace, and the radiant energy signal was introduced into the combustion control system. A combustion auxiliary duct pilot was added and some stimulation is studied. The results shows that with the change of the radiant energy signal, the new control system can change the supply of the fuel in 20 seconds and wipe off all the disturbance in 30 seconds and the amplitude of fluctuation is dramatically reduced.

Method of Reactive Power and Voltage Optimization Control Based on RTDS

2013 ◽  
Vol 347-350 ◽  
pp. 1520-1524
Author(s):  
Min Li ◽  
Yong Hong Tang ◽  
Lin Xu ◽  
Hong Fan ◽  
Yu De Yang
Keyword(s):  
Power Systems ◽  
Closed Loop ◽  
Reactive Power ◽  
Control Method ◽  
Digital Simulation ◽  
Operation Mode ◽  
Simulation System ◽  
Control Effectiveness ◽  
Testing Method ◽  
Optimization Control

Automatic voltage control (AVC) system has been widely used in power systems at home and abroad, with some problems in applications. This paper proposes a closed-loop testing method based on real time digital simulation system (RTDS) and reactive optimization procedures to simulate the actual AVC operation mode, we can obtain an optimal control which is different from the actual AVC system, it can be used as the actual AVC system judgment to evaluate the action effectiveness and the advantages/disadvantages of the actual AVC system compared with optimal results. Finally, the simulation tests show that RTDS-based reactive power and voltage optimization control method is good so that it can be regard as reference to evaluate the control effectiveness of the actual AVC system action.

Closed-loop optimization control on fan speed of air-cooled steam condenser units for energy saving and rapid load regulation

Energy ◽  
2017 ◽  
Vol 135 ◽  
pp. 394-404 ◽  
Author(s):  
Tingting Yang ◽  
Wei Wang ◽  
Deliang Zeng ◽  
Jizhen Liu ◽  
Can Cui
Keyword(s):  
Energy Saving ◽  
Closed Loop ◽  
Loop Optimization ◽  
Optimization Control ◽  
Load Regulation ◽  
Fan Speed

Intestinal Bacteriology of Closed Loop, Strangulated Obstruction in Dogs.

1961 ◽  
Vol 41 (3) ◽  
pp. 245-250 ◽  
Author(s):  
George H. Bornside ◽  
Isidore Cohn
Keyword(s):  
Closed Loop
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