The PID control system of steam boiler drum water level based on genetic algorithms

2014 ◽  
Author(s):  
R. X. Zhao ◽  
X. J. Wang ◽  
F. Teng
Keyword(s):  
Genetic Algorithms ◽  
Control System ◽  
Water Level ◽  
Pid Control ◽  
Steam Boiler ◽  
Boiler Drum

The Application of Three Impulse Cascade in Drum Water Level Control System

2012 ◽  
Vol 485 ◽  
pp. 123-126 ◽  
Author(s):  
Yun Jing Liu ◽  
Feng Wen Wang
Keyword(s):  
Control System ◽  
Water Level ◽  
Pid Control ◽  
Power Plants ◽  
Steam Boiler ◽  
Fuzzy Pid ◽  
Level Control ◽  
Fuzzy Pid Control ◽  
Level Control System ◽  
Cascade Control System

Steam boiler supplies steam of certain quality in industry process according to the changes of load. It is important of most power plants and has been concerned with analyzing power system dynamics in various works. Drum water level is one of the main processes in the boiler. Because of the phenomenon of false water level, three measurement signals including drum water level, water supply flow and steam flow are introduced. In this paper three impulses Cascade control system with fuzzy PID control is presented, and simulation is performed based on MATLAB.

scholarly journals Fuzzy control and simulation of boiler drum water level

2020 ◽  
Vol 309 ◽  
pp. 05003
Author(s):  
Fansheng Meng ◽  
Xuefei Zhang ◽  
Yan Zheng ◽  
Xi Cheng ◽  
Zhi Weng
Keyword(s):  
Control System ◽  
Water Level ◽  
Pid Control ◽  
Control Method ◽  
Fuzzy Controller ◽  
Control Strategies ◽  
Level Control ◽  
Level Control System ◽  
Boiler Drum ◽  
The Subject

Boiler drum water level control system is hard to develop practical mathematical model and has nonlinear, stable and delay characteristics. The traditional boiler drum water level control often uses three impulse PID control method. The existing problem of ordinary PID control strategy is: once good parameter setting, it is hard to adapt to the change of the operation of the system dynamic greatly. In order to solve the problems of the above, the research object of the subject is a certain 120 t/h boiler steam capacity, the boiler drum water level control system is designed, and the control strategies are studied. In order to obtain better contrast, the ordinary PID controller and Fuzzy controller are designed, and the control strategies of the simulation are analyzed.

scholarly journals Study on Fuzzy Self-Adaptive PID Control System of Biomass Boiler Drum Water

2013 ◽  
Vol 03 (01) ◽  
pp. 93-98 ◽  
Author(s):  
Junran Jin ◽  
Hengshuo Huang ◽  
Junman Sun ◽  
Yongchao Pang
Keyword(s):  
Control System ◽  
Pid Control ◽  
Biomass Boiler ◽  
Boiler Drum ◽  
Adaptive Pid Control ◽  
Self Adaptive

The Fuzzy Self-Tuning PID Control for Boiler Drum Water Level

2012 ◽  
Vol 198-199 ◽  
pp. 1231-1234 ◽  
Author(s):  
Yong Sheng Zhang ◽  
Shu Qin Zhao
Keyword(s):  
Fuzzy Logic ◽  
Water Level ◽  
Pid Control ◽  
Control Method ◽  
Effective Control ◽  
Level Control ◽  
Quality Of Water ◽  
Self Tuning ◽  
Boiler Drum ◽  
Time Lagged

In order to improve the control quality of water level for boiler drum, a fuzzy self-tuning PID level controller for boiler drum was designed based on the fuzzy logic principle. The fuzzy logic toolbox and Simulink module of Matlab software were used for the modeling of the water level control system of boiler drum. Numerical simulation was implemented. The result shows that the fuzzy self-tuning PID control has such virtues as smaller overshoot, shorter regulating time and stronger robustness than conventional three-element PID control. The fuzzy self-tuning PID control is especially effective for nonlinear system like boiler with multivariable, large time lagged and strong coupling. It is a very effective control method with widely application prospect.

Recommended Configuration of Boiler Drum Water Level Control and Protection System

2016 ◽  
Author(s):  
Zhelin Liu ◽  
John Michael Harris ◽  
Jichuan Liu ◽  
Shengli Yu ◽  
Mingxin Zhou
Keyword(s):  
High Pressure ◽  
Control System ◽  
Water Level ◽  
Critical Level ◽  
Protection System ◽  
Level Control ◽  
Boiler Water ◽  
Protection Systems ◽  
Boiler Drum ◽  
Gauge Glass

For a high pressure boiler above 1,400 psi (9.7 MPa), the boiler drum level Control and Protection systems serve two distinct, but complementary functions. The Control system needs to control drum level. Protection is done for safety. If the drum level reaches a critical level, the Protection system shuts down the boiler to avoid damage. One must meet ASME Boiler Code requirements, get the job done correctly, and minimize the number of instruments required. By ASME Boiler Code, one must have at least one Boiler Water Gauge Glass. How many Control instruments are needed? If a single boiler drum water level instrument is used and this instrument suffers a failure, there is a problem. Even if two instruments are used and one fails, one does not know which to trust. Logic dictates that one requires a minimum of three Control instruments. Before discussing Protection, it is good to discuss the characteristics of the instruments available:

An auto-tuning PID control system based on genetic algorithms to provide delay guarantees in Passive Optical Networks

2015 ◽  
Vol 42 (23) ◽  
pp. 9211-9220 ◽  
Author(s):  
Tamara Jiménez ◽  
Noemí Merayo ◽  
Anaïs Andrés ◽  
Ramón J. Durán ◽  
Juan C. Aguado ◽  
...  
Keyword(s):  
Genetic Algorithms ◽  
Control System ◽  
Optical Networks ◽  
Pid Control ◽  
Passive Optical Networks ◽  
Delay Guarantees ◽  
Auto Tuning
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