Nashrieh Shimi va Mohandesi Shimi Iran

Nashrieh Shimi va Mohandesi Shimi Iran

Hybrid Predictive Control Based on PWA Model for a pH Neutralization Process with Considering Buffer Flow Variations

Document Type : Research Article

Authors
Mahvar Tabatabaei Mavahebi 1
Mahdi Khodabandeh 2
Ahmad Seif 3
1 Electrical Engineering Department, Islamic Azad University, Boroujerd Branch, Boroujerd, I.R. IRAN
2 Electrical Engineering Department, Hamedan University of Technology, Hamedan, I.R. IRAN
3 Department of Chemistry, Islamic Azad University, Boroujerd Branch, Boroujerd, I.R. IRAN
Abstract
In this paper, a model-based predictive control for hybrid systems based on the class of Piece Wise Affine (PWA) model is presented. Hybrid systems contain two distinct types of components.These components are subsystems with continuous and discrete dynamics which interact with each other. Optimal control methods for controlling these systems have the largest share which among them; model predictive control is considered more. The controller presented in this way has all the characteristics of classic predictive control and due to the quadratic programming method to solve the optimization problem, the calculation is easy. The control method proposed in this paper is designed based on Generalized Incremental Predictive Control (GIPC) and Piece Wise Affine (PWA) model. This method is applied on a pH neutralization process and
is simulated using MATLAB software. The simulated results have confirmed the appropriate operation of the controller in facing of set point changes and buffer flow variations.
Keywords
pH neutralization process
Generalized Incremental Predictive Control (GIPC)
Hybrid predictive control
Piece Wise Affine (PWA) model

Subjects

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