Journal of Electrical Engineering : Volume 18 / 2018 - Edition : 3

Design and Implementation of Classical Linear PI Controller for Fundamental Negative Output Super Lift Luo Converter

R Thamaraiselvi
J Baskaran
power electronics
This article study on a design and implementation classical linear Proportional-Integral (PI) controller for Fundamental Negative Output Super Lift Luo Converter (FNOSLLC) worked in Continuous Conduction Mode (CCM). The FNOSLLC is one of recent DC-DC converter that converts from positive DC source voltage to negative DC load voltage. The dynamic characteristic of this converter is poor performance due to non-linear nature of FNOSLLC. So as to get better dynamic performance of FNOSLLC for both the static and the dynamic specifications, a classical linear PI controller is designed. The parameters value of the PI controller is determined with help of Ziegler-Nichols tuning method. The values of PI controller setting are obtained with state-space average modeling of FNOSLLC. The computer simulation of FNOSLLC using designed control model is implemented in MATLAB/Simulink. The static and dynamic performances of the FNOSLLC are tested at various regions. The complete simulation results verify the achieve of the parameters value of PI controller on the static and the dynamic characteristics of the FNOSLLC, which is applicable for common solar cell, computer power supplies in central processing unit, mobile phones, I-pad, and physiotherapy medical equipments.
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