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Long range predictive control of nonlinear processes based on recurrent neuro-fuzzy network models

Lookup NU author(s): Dr Jie ZhangORCiD, Emeritus Professor Julian Morris


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A recurrent neuro-fuzzy network-based nonlinear long range model predictive control strategy is proposed in this paper. The process operation is partitioned into several fuzzy operating regions. Within each region, a local linear model is used to model the process. The global model output is obtained through the centre of gravity defuzzification. Based upon a neuro-fuzzy network model, a nonlinear model-based predictive controller can be developed by combining several local linear model-based predictive controllers which usually have analytical solutions. This strategy avoids the time consuming numerical optimisation procedure, and the uncertainty in convergence to the global optimum which are typically seen in conventional nonlinear model-based predictive control strategies. Furthermore, control actions obtained based on local incremental models contain integration actions which can naturally eliminate static control offsets. The technique is demonstrated by an application to the modelling and control of liquid level in a water tank.

Publication metadata

Author(s): Zhang J, Morris AJ

Publication type: Article

Publication status: Published

Journal: Neural Computing and Applications

Year: 2000

Volume: 9

Issue: 1

Pages: 50-59

Print publication date: 01/01/2000

ISSN (print): 0941-0643

ISSN (electronic): 1433-3058

Publisher: Springer


DOI: 10.1007/s005210070035


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