A simple resonant frequency tracking technique for LLC resonant converters

Iresha Poonahela, Sertac Bayhan, Haitham Abu-Rub

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A LLC resonant converter (LLC-RC) has been widely used in DC/DC converters for the benefits of high efficiency and high power density. The efficiency of a LLC resonant converter is greatly dependent on the switching frequency. In order to achieve higher efficiency, the switching frequency should be equal to the resonant frequency. This paper presents a novel resonant frequency tracking technique for LLC resonant converters (LLC-RC) based on the detection of zerocurrent duration on the secondary side of the converter. The LLC-RC is controlled by the proposed technique to achieve resonant frequency tracking automatically under the various operating condition. To verify the control technique, a 5 kW LLC-RC was designed and tested through a Matlab/Simulink environment.

Original languageEnglish
Title of host publication2017 6th International Conference on Renewable Energy Research and Applications, ICRERA 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages296-299
Number of pages4
Volume2017-January
ISBN (Electronic)9781538620953
DOIs
Publication statusPublished - 12 Dec 2017
Event6th IEEE International Conference on Renewable Energy Research and Applications, ICRERA 2017 - San Diego, United States
Duration: 5 Nov 20178 Nov 2017

Other

Other6th IEEE International Conference on Renewable Energy Research and Applications, ICRERA 2017
CountryUnited States
CitySan Diego
Period5/11/178/11/17

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Keywords

  • DC/DC converter
  • Digital control
  • Resonant converter

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Poonahela, I., Bayhan, S., & Abu-Rub, H. (2017). A simple resonant frequency tracking technique for LLC resonant converters. In 2017 6th International Conference on Renewable Energy Research and Applications, ICRERA 2017 (Vol. 2017-January, pp. 296-299). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/DISTRA.2017.8191282