Subspace-Based Indirect Adaptive State-Space Model Predictive Control

Xiao Suo Luo

doi:10.4028/www.scientific.net/AMM.246-247.311

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 246-247Subspace-Based Indirect Adaptive State-Space Model...

Subspace-Based Indirect Adaptive State-Space Model Predictive Control

Abstract:

In order to deal with nonlinear, time-varying and disturbance-involved characteristics in the practical industrial processes, an indirect adaptive state-space MPC (model predictive control) method based on subspace identification is proposed. The state-space model, obtained through the POMOESP (Past Output MOESP, MOESP is one form of the subspace identification methods) algorithm, is regarded as the system model. Then, this model is used to design the model predictive controller that involves the solution of a quadratic programming problem to constraints. This controller is applied to the process control simulation on a 2-CSTR. Through comparisons of performance with a linear state-space MPC scheme, the superiority of the proposed control method is illustrated.

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Periodical:

Applied Mechanics and Materials (Volumes 246-247)

Pages:

311-316

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.246-247.311

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Online since:

December 2012

Authors:

Xiao Suo Luo

Keywords:

Adaptive, Indirect, Model Predictive Control (MPC), State-Space, Subspace Identification

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