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A fast and accurate simulation tool for LLC Converters

  • Yuqi Wei
  • , Zhiqing Wang
  • , Quanming Luo
  • , Alan Mantooth
  • University of Arkansas, Fayetteville
  • Monolithic Power Systems
  • Chongqing University

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

2 Scopus citations

Abstract

LLC converters have been widely adopted in loads of industry applications. Although traditional fundamental harmonic based analysis method is simple, when applied in wide voltage gain range applications, the analysis accuracy degrades significantly. Thus, to optimize the converter performance, the time domain modelling analysis for different LLC converters and operation modes are discussed. Then, based on the modelling results, a simulation tool based on MATLAB graphical user interface (GUI) is developed to visualize the converter operation. Compared with the commercial simulation software, the developed one holds the advantages of fast, accurate, and convenient. The designed simulation tool has the exact simulation results as the commercial simulation software, while the simulation speed is much faster than the commercial ones. In addition, there is no need for users to build the different converter topologies and measure the key circuit currents and voltages, which is much more convenient. The developed simulation tool can be used to achieve automated design with thousands of iterations, which are tedious and time-consuming for commercial software. The time domain modelling and developed simulation tool are discussed. Simulation results comparisons between the developed simulation tool and commercial PSIM simulation tool are presented to validate the correctness and effectiveness of the developed simulation tool.

Original languageEnglish
Title of host publication2021 IEEE Applied Power Electronics Conference and Exposition, APEC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages152-159
Number of pages8
ISBN (Electronic)9781728189499
DOIs
StatePublished - 14 Jun 2021
Externally publishedYes
Event36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021 - Virtual, Online, United States
Duration: 14 Jun 202117 Jun 2021

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Conference

Conference36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021
Country/TerritoryUnited States
CityVirtual, Online
Period14/06/2117/06/21

Keywords

  • Graphical user interface (GUI)
  • LLC resonant converter
  • Simulation tool
  • Time domain modelling

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