Design of a closed loop control scheme for a DC-DC SEPIC converter using loop shaping method

Design of a closed loop control scheme for a DC-DC SEPIC converter using loop shaping method

In this paper, a closed loop control scheme for DC-DC SEPIC converter that realizes a regulated dc output voltage is discussed in detail. The converter equations corresponding to different modes of operation of the converter are developed. The proportional integral controller using loop shaping meth...

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Bibliographic Details
Published in:2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015] pp. 1 - 5
Main Author: Geethalakshmi, B.
Format: Conference Proceeding
Language:English
Published: IEEE 01-03-2015
Subjects:
Computers
DC-DC converters
Inductors
loop shaping technique
Mathematical model
Photovoltaic systems
PI controller
SEPIC
Topology
Transfer functions
Voltage control
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Summary:In this paper, a closed loop control scheme for DC-DC SEPIC converter that realizes a regulated dc output voltage is discussed in detail. The converter equations corresponding to different modes of operation of the converter are developed. The proportional integral controller using loop shaping method is systematically developed with the help of state equations obtained from the converter equations. Simulation studies are carried out to confirm the effectiveness of the suggested control strategy under large perturbations.
DOI:10.1109/ICCPCT.2015.7159361