tepes

Turkish Journal of Electrical Power and Energy Systems

2791-6049

Association of Turkish Electricity Industry

10.5152/tepes.2024.22029

Electrical Machines and Drives

Elektrik Makineleri ve Sürücüler

Performance Analysis of LLC Resonant and Pulse Width Modulation Direct Current- Direct Current Converters for Buck and Boost Operation

https://orcid.org/0000-0002-6163-124X

Rahman

Mohammad Mustafizur

SHAHJALAL UNIVERSITY OF SCIENCE AND TECHNOLOGY, ELECTRICAL & ELECTRONIC ENGINEERING

https://orcid.org/0000-0002-9340-8114

Abdullah

Rashed

SHAHJALAL UNIVERSITY OF SCIENCE AND TECHNOLOGY, ELECTRICAL & ELECTRONIC ENGINEERING

https://orcid.org/0000-0003-1945-0098

Ahammad

Arif

SHAHJALAL UNIVERSITY OF SCIENCE AND TECHNOLOGY, ELECTRICAL & ELECTRONIC ENGINEERING

https://orcid.org/0000-0003-0068-1355

Amin

Ifte Khairul

SHAHJALAL UNIVERSITY OF SCIENCE AND TECHNOLOGY, ELECTRICAL & ELECTRONIC ENGINEERING

06 24 2024

4 2 96 107 05 13 2023 04 24 2024

2021

Turkish Journal of Electrical Power and Energy Systems

This paper accentuates the study of LLC resonant converter by a comparative analysis of the properties of LLC resonant and pulse width modulation direct current-direct current converters. Lately, LLC resonant converters have become more appealing and desirable in many applications than other pulse width modulation converters (e.g., Buck, Boost, Cuk) for their soft-switching techniques like zero voltage switching, zero current switching as well as low electromagnetic interference. This paper presents an analysis of efficiency variation, output voltage’s ripple, and various transient performances like percentage overshoot, and the settling time with the variation of load current in a comparative way between LLC resonant converter’s buck, boost operation, and conventional pulse width modulation converter’s buck, boost operation. Feedback prop ortio nal-i ntegr al-d eriva tive duty cycle controller is used in all converter topologies for some specific analysis. A fixed input voltage of 100 V is selected for simulation and an output voltage of 24 V for buck operation and 120 V for boost operation are chosen. For simulation purposes, MATLAB/SIMULINK software is used.

DC-DC converter LLC resonant converter pulse width modulation switched-mode power supply zero voltage switching

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