TITLE:
Analysis, Modeling and Simulation of State Feedback Control for Positive Output Super Lift Luo Converter
AUTHORS:
N. Arunkumar, T. S. Sivakumaran, K. Ramashkumar, R. Shenbagalakshmi
KEYWORDS:
DC-DC Converter, POSLL, Controller
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.11,
September
30,
2016
ABSTRACT: This
article studies a design and implementation of state-feedback control problem for dc-dc
Positive Output Super Lift Luo (POSLL) converter by considering the line and
load disturbances for needing desired power source for various portable
electronic equipments like
battery charger, hard disk drives, medical device, LED TV etc. The POSLL’s dynamic performance
becomes non-linear in nature; the
designed controller able to get superior dynamic performance given by load
estimation is done by using an observer and by combining the state-feedback
control with the load estimator, a controller which is explicitly developed
with strong robustness using separation principle. An effectual stability
analysis is exemplified to prove that by carefully selecting the state feedback
control and observer gain matrix, the output voltage of the dc-dc POSLL
converter tracks the desired value irrespective of the uncertainties. Extensive
simulation is carried out using MATLAB/Simulink model. The result based on time domain analysis is done by
using the controllers for various disturbances given to the converter.