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Active Disturbance Rejection Control of a Neutralisation Process

Lookup NU author(s): Dr Alison Brown, Dr Jie ZhangORCiD


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This paper presents active disturbance rejection control (ADRC) of pH in a neutralisation process. As pH dynamics is highly nonlinear and not control-affine, direct application of ADRC using pH as the controlled variable is not effective. To overcome this problem, an artificial variable, which has one-to-one mapping with pH and is control affine, is defined as the controlled variable for ADRC. A method for tuning ADRC using step response data is proposed. Application results show that ADRC can give excellent control performance for pH control.

Publication metadata

Author(s): Brown A, Zhang J

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 24th European Symposium on Computer Aided Process Engineering

Year of Conference: 2014

Pages: 739-744

Print publication date: 20/06/2014

Publisher: Elsevier


DOI: 10.1016/B978-0-444-63456-6.50124-1

Library holdings: Search Newcastle University Library for this item

Series Title: Computer Aided Chemical Engineering

ISBN: 9780444634566