Direct Adaptive Fuzzy Predictive Control and its Application to CSTR Process

Cheng Li Su; Ma Lina; Ping Li

doi:10.4028/www.scientific.net/AMM.241-244.1191

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 241-244Direct Adaptive Fuzzy Predictive Control and its...

Direct Adaptive Fuzzy Predictive Control and its Application to CSTR Process

Abstract:

In order to obtain accurate prediction model and avoid solving nonlinear programming problem, a direct adaptive predictive control (DAPC) method is proposed. Firstly, a nonlinear system was described based on Takagi-Sugeno (T-S) fuzzy models. Assuming that that the antecedent parameters of T-S models were kept, the consequent parameters were identified on-line by using the weighted recursive least square (WRLS) method. Secondly, the identified parameters of fuzzy model were used to directly receive the model predicted output with direct iterative for the T-S model. Finally, the application results for continuous stirred tank reactor (CSTR) process show that the proposed algorithm is an effective control strategy with excellent tracing ability. The proposed algorithm is a good way to resolve the two major problems, modeling and optimization, and provides a guarantee for high-precision control of nonlinear systems.

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Periodical:

Applied Mechanics and Materials (Volumes 241-244)

Pages:

1191-1194

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.241-244.1191

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Online since:

December 2012

Authors:

Cheng Li Su, Ma Lina, Ping Li

Keywords:

Adaptive Control, Continuous Stirred Tank Reactor (CSTR), Nonlinear System, Predictive Control, T-S Fuzzy Model

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