Simulation and Research for Gas Boiler Based on the Vague Set PID

Abstract:

Gas hot water boiler is widely used as heating equipment in everyday life. Because gas hot water boiler has the characteristics of nonlinear, large inertia and disturbances, so it is particularly important to build a precise mathematical model. Then the difference equation model of the system is identified by the least square method according to the collected data in this paper. Writing M file in the MATLAB software to get the continuous transfer function, and setting up Vague Set PID simulation, fuzzy self-tuning PID simulation and conventional PID algorithm in SIMULINK. By comparing among the three kinds of adjusting method, We get that Vague Set PID not only in regulation time, overshoot and effect of dynamic performance is superior compared the other two controller models , but also enhance the robustness and adaptability of the system, has a good dynamic, static performance..

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 2101-2104
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.2101
• Online since: May 2014
• Authors: Gang Zhao*, Jian Li
• Keywords: Gas Hot Boiler, MATLAB Simulation, System Identification, Vague Set PID

References

[1] Guo Lihui, Zhu Lihong, Gao Wei. Identification and Simulation of MATLAB system based on least square method. Journal of Xuchang University. 2010, 3.

[2] Liu Longyun. Mathematical modeling and optimization control research of hot water boiler combustion system. Dalian University of Technology. (2013).

[3] Wang Zhixiang, Ding Feng. Z -S transforms and its application. Control and Decision, 1995, 1.

[4] Li Fan, Xu Zhangyan, Lv Zehua. A method based on Vague set approximation. Computer engineering and science reasoning method of similarity measure, 2002, 24 (5): 107- 110.

[5] Guan Xuezhong, Zhao Xiaoyu, Guan Yong. A Vague sets similarity metric based controller design.  Control engineering.  2006, 13(1): 15- 17.

DOI: 10.1109/wcica.2006.1713098