Cascade Fuzzy Self-Tuning PID Control for the Liquid-Level Control of Double Water-Tank

Abstract:

Aiming at the liquid-level control of double water-tank, this paper discusses the application of fuzzy control theory in liquid-level control system and a cascade control method based on fuzzy self- tuning PID controller is proposed. The design method of this fuzzy self- tuning PID controller is put forward. The fuzzy self- tuning PID controller is designed and the control effect of three kinds control methods, the single loop PID control system, the cascade control system and the cascade control system based on fuzzy self- tuning PID are simulated with Simulink. The analysis and simulation results indicate that the overshoot, the adjusting time and the capacity of anti- disturbance of the liquid-level cascade control system based on fuzzy self- tuning PID controller are superior to those of the general single loop PID control and cascade control.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 207-212
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.207
• Online since: November 2011
• Authors: Yi Lin, Xiao Ling Ye
• Keywords: Cascade Control System, Fuzzy Control, Liquid-Lever Control, Proportion Integral Differential Coefficient Control, Self-Tuning

References

[1] ZHU Hairong, JIANG Ping, YANG Yi, ZHOU Genrong. Application of Fuzzy PID System in Paper-pulp Cooking Process,. Computer Engineering, vol. 33, pp.222-224. April (2007).

[2] CAO Guangming, WU Di, ZHANG Dian-hua. Design of mold liquid-level control system in roll caster based on fuzzy control regulation ,. Control and Decision, vol. 22, pp.399-402. April (2007).

[3] XU Jun, FANG Yan-jun. Fuzzy Interference and Self-tuning PID Control and Its Application in PROFIBUS Controller,. Instrument Technique and Sensor, vol. 5, p.35–36, May (2006).

[4] Cheng Qiming, Wang Yonghao. Simulation Study of Fuzzy/PID Cascade Control System Based on Smith Predictive Estimate on Main Steam Temperature,. Transactions of China Electrotechnical Society, vol. 33, pp.143-147. March (2007).

DOI: 10.1109/wcica.2006.1713452

[5] HAN Jiang, YU Zhongyuan, HE Gaoqing, ZHAI Hua. Study on the Adaptive Fuzzy-tuning PID Control Used in Precision Alignment Machine's Electro-hydraulic Servo Control System ,. Modular Machine Tool & Automatic Manufacturing Technique, vol. 8, pp.54-56. August (2009).

[6] JIN Yihui. Process Control. Beijing: Tsinghua University Press, (1993).

[7] Wang ZhengLin, Guo YangKuan. Process Control and Simulink Application. Beijing: Electronic Industrial Press, (2006).

[8] Luo Zhiyong. Application of fuzzy-PID control in drum water leverl control of industrial boilers,. Computer Applications and Software, vol. 26, pp.200-202. Jan (2009).