Adaptive control for pH systems
SCIE
SCOPUS
- Title
- Adaptive control for pH systems
- Authors
- Sung, SW; Lee, IB; Choi, JY; Lee, J
- Date Issued
- 1998-05
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- In this study, an adaptive pH controller is proposed to control the pH process efficiently. Dissociation constant and total ion concentration of a fictitious weak acid are estimated to approximate the equilibrium characteristic of the pH process by the on-line recursive least-squares method and the pH value is controlled by a nonlinear proportional-integral (PI) controller using the estimated process parameters. Simulation results show that the proposed control strategy promises to handle both the nonlinearities and time-varying characteristics of the pH process. (C) 1998 Elsevier Science Ltd. All rights reserved.
- Keywords
- pH process; adaptive control; nonlinearity; estimator; STRONG ACID EQUIVALENT
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20726
- DOI
- 10.1016/S0009-2509(98)00050-5
- ISSN
- 0009-2509
- Article Type
- Article
- Citation
- CHEMICAL ENGINEERING SCIENCE, vol. 53, no. 10, page. 1941 - 1953, 1998-05
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