DC link balancing of an Auxiliary Resonant Commutated Pole Inverter

Markus Zocher, Norbert Grass, Ralph Kennel

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

Abstract

The standard Auxiliary Resonant Commutated Pole topology adds soft switching to half-bridge based inverters but requires a balancing of the DC link midpoint to achieve quasi-resonant or full ZVS switching. This paper presents a method to use the resonant leg not only for soft switching, but also for balancing of the DC link midpoint, allowing additional hardware components to be omitted. The theoretical limits of this method are investigated, showing the maximum balancing current is viable. The practical implementation shows a way to use the balancing algorithms also with adaptive control methods suitable for small and nonlinear resonant tanks. Practical measurements confirm the theoretical considerations and successful implementation.

Original languageEnglish
Title of host publication2023 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9789075815412
DOIs
StatePublished - 2023
Event25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe - Aalborg, Denmark
Duration: 4 Sep 20238 Sep 2023

Publication series

Name2023 25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe

Conference

Conference25th European Conference on Power Electronics and Applications, EPE 2023 ECCE Europe
Country/TerritoryDenmark
CityAalborg
Period4/09/238/09/23

Keywords

  • Capacitor voltage balancing
  • Control strategy
  • DC voltage control
  • Resonant Converter
  • Soft switching

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