Hybrid Fuzzy-PID Application in Boilers to Obtain Optimum Efficiency

محورهای موضوعی : مهندسی هوشمند برق

Shahram Javadi ¹ (Electrical Engineering Department, Central Tehran Branch, Islamic Azad University, Tehran, Iran.)
Abdolreza Gohari ² (Electrical Engineering Department, South Tehran Branch, Islamic Azad University, Tehran, Iran.)

تاریخ دریافت : 1394/01/24 تاریخ پذیرش : 1394/01/24 تاریخ انتشار : 1392/09/10

کلید واژه: Fuzzy controller, PID Controller, Boiler,

چکیده مقاله :

Many real time processes have complex, uncertain and nonlinear dynamics. Boilers are nonlinear, time varying, multi-input multi-output (MIMO) systems, whose states generally vary with operating conditions. The major problem in controlling that system is that its drum water pressure and steam flow dynamics include an integrator that results a critically stable behavior. Conventional controller previously used have a set of limitations, e.g. empirical tuning of their parameters when the operating conditions of the controlled process are changed. The application of fuzzy control scheme which is compounded with classic controller (PID) may provide more effective and flexible control of boilers in power stations. This research employing fuzzy logic systems due to their transparency and nonlinear features for controlling dynamics, uncertain and highly nonlinear boiler systems and PID controller due to its fast response

منابع و مأخذ:

[1]

Astrom. K., T. Hagglund, “PID Controllers; Theory, Design and Tuning”, Instrument Society of America, Research Triangle Park, 1995.

[2]

Yager R. R. and Filer D. P., “Essentials of Fuzzy Modelling and Control”, John Wiley, 1994.

[3]

Tiryaki, H., “Comparing of Fuzzy Logic Controllers with PID Controller in a Thermic Power Plant”, Graduate School of Natural and Applied Sciences, Department of Electrical and Electronic Engineering, M. Sc. Thesis, January 2005 (in Turkish).

[4]

İlhan Kocaarslan, “A Fuzzy PI Controller Application in Boilers of Thermal Power Plants”, Kirikkale University, Department of Electrical & Electronics Engineering, Kirikkale, Turkey.

[5]

Li, W., Chang, X., “Application of hybrid fuzzy logic proportional plus conventional integral-derivative controller to combustion control of stoker-fired boilers”.

[6]

Engin Yesil, “Automatic Generation Control with Fuzzy Logic Controller in the Power System Including Three Areas”, Department of Electrical Eng., Electric & Electronic Faculty Istanbul Technical University, Maslak, Istanbul, Turkey.

[7]

L. X. Wang, “Adaptive Fuzzy System & Control design & Stability Analysis”, Prentice-Hall, 1994.

[8]

S. Samyuktha and P. Kanagasabapathy, “Optimized Fuzzy Modelling of a Boiler Super Heater”, Department of Instrumentation Engg, M.I.T, Anna University, Chennai.