Title :
An experimental evaluation of optimal control design for coupled tank system
Author :
Mahapatro, Soumya Ranjan ; Subudhi, Bidyadhar ; Ghosh, Sudip
Author_Institution :
Dept. of Electr. Eng., Nat. Inst. of Technol., Rourkela, India
Abstract :
This paper presents a Linear Quadratic Regulator (LQR) controller for the real-time control of a coupled tank liquid level system. The model of the coupled tank system has been developed based on system identification technique that employs least square error algorithm (LS) for parameter estimation. The proposed controller algorithm has been applied on the identified model. The performance of the projected control algorithm has been compared with that of a Conventional PI controller. From both the simulation as well as the experimental results, it is observed that the performance of the proposed LQR control is more efficient then the widely used conventional PI Controller.
Keywords :
control system synthesis; least squares approximations; level control; linear quadratic control; nonlinear control systems; optimal control; parameter estimation; real-time systems; tanks (containers); LQR controller; PI controller; coupled tank liquid level system; least square error algorithm; linear quadratic regulator; optimal control design; parameter estimation; projected control algorithm; real-time control; system identification technique; Algorithm design and analysis; Correlation; Mathematical model; Optimal control; Process control; Tuning; Coupled Tank system; Least Square Error Algorithm (LS); Linear Quadratic Regulator (LQR); System Identification;
Conference_Titel :
Automation, Control, Energy and Systems (ACES), 2014 First International Conference on
Conference_Location :
Hooghy
Print_ISBN :
978-1-4799-3893-3
DOI :
10.1109/ACES.2014.6807977
