Title :
A simulation comparison of PI and Linear Quadratic Regulator controllers in DC-DC converter
Author :
M. A. Abdullah;C. W. Tan;A. H.M. Yatim
Author_Institution :
Department of Electrical Power Engineering, Faculty of Electrical Engineering, Universiti Teknologi Malaysia (UTM), 81300, Skudai, Johor, Malaysia
Abstract :
This paper presents a performance comparison of PI and Linear Quadratic Regulator (LQR) controllers for regulating the output voltage of a boost DC-DC converter. Performance of these controllers has been tested under different disturbances in output voltage, input voltage, and load current using MATLAB/Simulink simulation package. The comparison indicates that LQR controller performance is better in terms of settling time, over- and undershoots. The LQR controller response is approximately twice as fast as the PI controller. The reduction in over- and undershoots using LQR controller could reach up to 17% and 41%, respectively.
Keywords :
"Voltage control","DC-DC power converters","Mathematical model","MATLAB","Switches","Integrated circuit modeling","Regulators"
Conference_Titel :
Energy Conversion (CENCON), 2015 IEEE Conference on
DOI :
10.1109/CENCON.2015.7409510
