Title :
Nonlinear compensator based PI controller for pH neutralization reaction process
Author :
Wu, Qinghui ; Cui, Zongze
Author_Institution :
Coll. of Inf. Sci. & Eng., Bohai Univ., Jinzhou, China
Abstract :
It is significant to control pH value rapidly and accurately for neutralization reaction process, which is characterized by critical nonlinearity and strong disturbance. In this paper, a nonlinear model is built taking the case of overflow neutralization reaction pool. And a linearization method based on inverse model is proposed. On the base of nonlinear compensator, a single closed-loop PI control scheme is applied in pH neutralization reaction process. Accepting the flow of the modulated liquid as main disturbance, the simulation results suggest that the proposed scheme has good steady state and dynamic performance.
Keywords :
PI control; closed loop systems; linearisation techniques; nonlinear control systems; pH; pH control; inverse model; linearization method; nonlinear compensator; nonlinear compensator based PI controller; overflow neutralization reaction pool; pH neutralization reaction process; single closed loop PI control; PI controller; inverse system; nonlinear compensator; pH neutralization reaction;
Conference_Titel :
Industrial and Information Systems (IIS), 2010 2nd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-7860-6
DOI :
10.1109/INDUSIS.2010.5565677
