Title :
Research on DO control based on Fuzzy Smith-PID controller for sewage disposal
Author :
Xiaofeng, Lian ; Zaiwen, Liu ; Zhen, Su ; Wandong, Li ; Xiaoyi, Wang
Author_Institution :
Sch. of Comput. & Inf. Eng., Beijing Technol. & Bus. Univ., Beijing, China
Abstract :
Considering the characteristics of the time-delay, inertia and time-varying of the dissolved oxygen (DO) control in the sewage disposal process, a Fuzzy Smith-PID control model is proposed based on the analysis of the regular PID and Fuzzy control in this paper, which integrates the advantages of the high robustness of the Fuzzy controller, the compensation of the time delay problem of Smith Estimation Machine and the high accuracy of PID controller. Simulation results show that this complex strategy has good robustness and stability in both of the model matching and mismatching situation, and provides an effective way to solve the problem of the time-delay, inertia and time-varying for sewage disposal system.
Keywords :
compensation; delay systems; fuzzy control; pattern matching; robust control; sewage treatment; three-term control; time-varying systems; Smith estimation machine; dissolved oxygen control; fuzzy Smith-PID controller; inertia characteristic; model matching; sewage disposal process; stability; time delay problem compensation; time-varying characteristic; Control systems; Effluents; Error correction; Fuzzy control; Inductors; Nitrogen; Process control; Robust control; Robust stability; Three-term control; DO; Fuzzy Control; PID; Sewage Disposal; Smith Prediction;
Conference_Titel :
Logistics Systems and Intelligent Management, 2010 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-7331-1
DOI :
10.1109/ICLSIM.2010.5461360
