Title :
Enhanced fuzzy control of pH neutralization processes
Author :
Kwok, D.P. ; Wang, P.
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech., Kowloon, Hong Kong
Abstract :
A specific fuzzy controller is developed for the regulation of a pH neutralization process. This fuzzy controller is primarily that of the fuzzy PD control structure but simultaneously enhanced by a normal integrator and a Smith predictor. The model of the pH neutralization process considered has highly nonlinear characteristics with time delay. The properties of the overall system are discussed in terms of nonlinearity and robustness. The design of the controller is carried out based on fuzzy set theory and a classical control principle. The simulation results obtained demonstrate that this novel controller is effective and has potential for this difficult control problem
Keywords :
chemical technology; control system synthesis; fuzzy control; fuzzy set theory; pH control; predictive control; process control; two-term control; Smith predictor; classical control principle; enhanced fuzzy control; fuzzy PD control structure; fuzzy set theory; highly nonlinear characteristics; nonlinearity; normal integrator; pH neutralization processes; robustness; time delay; Delay effects; Fuzzy control; Fuzzy logic; Humans; Industrial control; Nonlinear equations; PD control; Process control; Robustness; Sliding mode control;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-0891-3
DOI :
10.1109/IECON.1993.339066
