Application of LQR and MPC on Distillation and Batch Crystallization Process

Bandpatte, Sagar Chandu (2013) Application of LQR and MPC on Distillation and Batch Crystallization Process. MTech thesis.



As the widespread use of a batch crystallization process in many industries, finding an optimal operating condition and effective control strategy are significant for improving product quality and downstream processing. To achieve these, an accurate model is required to predict the process behavior and to design controller. However, due to unknown disturbances and batch-to batch variations, the kinetic parameters obtained from experimental study may not represent the real process resulting in poor control and estimation performances. In this work, improvement of batch crystallization control under uncertain kinetic parameters has been proposed. Model predictive controller (MPC) is used for optimal control of distillation and batch crystallization process. Feedback control strategy is found out using LQR technique. A Kalman filter has been designed to estimate uncertain parameters and immeasurable states. A MPC TOOLBOX in MATLAB software is used to obtain desired crystal size distribution (CSD).

Item Type:Thesis (MTech)
Uncontrolled Keywords:Distillation Process, Batch Crystallization, Linear Quadratic Regulator, Model Predictive Control, Kalman Filter
Subjects:Engineering and Technology > Chemical Engineering > Process Control
Engineering and Technology > Chemical Engineering > Chemical Process Modeling
Divisions: Engineering and Technology > Department of Chemical Engineering
ID Code:4698
Deposited By:Hemanta Biswal
Deposited On:24 Oct 2013 11:19
Last Modified:20 Dec 2013 14:59
Supervisor(s):Kundu, M

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