Model Predictive Control Using Orthonormal Basis Filter

• Main Author: Nik Mohd Nizam, Nik Syairah
• Format: Final Year Project
• Language: English
• Published: IRC 2014
• Subjects: TP Chemical technology
• Online Access: http://utpedia.utp.edu.my/14497/1/Nik%20Syairah%20bt%20Nik%20Mohd%20Nizam%2014358.pdf; http://utpedia.utp.edu.my/14497/

Proportional Integral Derivative (PID) controller is the most common controller that acts as standard tool in a process control industry. However, when interacting with Multiple Input and Multiple Output (MIMO) process, the interaction is difficult to be controlled by PID controller. Therefore, this project will focus on Model Predictive Control (MPC) that is one of optimization strategy that can control MIMO interaction by predicting the effect of potential control action. In this project, a mathematical model of Orthonormal Basis Filter (OBF) will be developed on the distillation column based on Wood-Berry model with a feedback control (a closed loop system). A simulation of MPC is done by using MATLAB coding while PID is simulated using SIMULINK. Based on the simulation, the performance of MPC and PID controller are evaluated by using the Integral Error Criteria: Integral Absolute Error (IAE), Integral of the Squared Error (ISE) and Integral of the time-weighted absolute error (ITAE) and also with total input variation. Lower integral error criteria and total input variation value indicate a better model accuracy and efficiency of controller for MIMO system.