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A High-Efficiency LLC Resonant Converter Based on Partial Power Processing for PV Applications

  • Shaopeng Xue
  • , Yan Zhang
  • , Xianting Li
  • , Yang Li
  • , Chunlin Lv
  • , Jinjun Liu
  • Xi'an Jiaotong University
  • Ltd

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

DC-DC converters are widely used in photovoltaic systems. However, conventional DC-DC converters exhibit limitations such as low efficiency and high rated power requirements. This paper introduces an LLC resonant converter based on partial power processing for photovoltaic inverters. By implementing soft switching for switches, switching losses are reduced and conversion efficiency is improved. Furthermore, an optimized bus voltage control method is designed to narrow the voltage gain range of the LLC converter. Additionally, due to the partial power conversion structure, the power rating of the converter is 25.9% of that in full-power converters. A comparative analysis with traditional DC-DC converters validates the advantages of this converter.

Original languageEnglish
Title of host publication2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1652-1657
Number of pages6
ISBN (Electronic)9798350351330
DOIs
StatePublished - 2024
Event10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia - Chengdu, China
Duration: 17 May 202420 May 2024

Publication series

Name2024 IEEE 10th International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia

Conference

Conference10th IEEE International Power Electronics and Motion Control Conference, IPEMC 2024 ECCE Asia
Country/TerritoryChina
CityChengdu
Period17/05/2420/05/24

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • DC-DC converter
  • partial power processing
  • photovoltaic system

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