A constant resistance analysis and control of cascaded buck and boost converter for wireless EV chargers

Kerim Colak, Mariusz Bojarski, Erdem Asa, Dariusz Czarkowski

Research output: Contribution to conferencePaper

Abstract

This paper presents a new constant resistance control technique for a cascaded buck and boost converter, which is suitable for wireless energy transfer pickup systems in variable load applications such as battery or ultra-capacitor charging. In order to achieve high efficiency, an impedance matching network is commonly used in the contactless energy transfer systems especially for low coupling coefficient circuits. The proposed control technique avoids a divergence of the designed impedance matching system considering the load variation. This is important to secure high wireless energy transfer efficiency under voltage and current changes at the load terminals. The transfer function of the converter is presented with theoretical calculations describing the small-signal model. The system model is used to control the resistance in the cascaded buck and boost converter for electric vehicle (EV) charging applications in a 2 kW prototype.

Original languageEnglish (US)
Pages3157-3161
Number of pages5
DOIs
StatePublished - May 8 2015
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: Mar 15 2015Mar 19 2015

Other

Other30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
CountryUnited States
CityCharlotte
Period3/15/153/19/15

Keywords

  • EV charger
  • buck and boost
  • cascaded
  • constant resistance control
  • converter
  • wireless

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A constant resistance analysis and control of cascaded buck and boost converter for wireless EV chargers'. Together they form a unique fingerprint.

  • Cite this

    Colak, K., Bojarski, M., Asa, E., & Czarkowski, D. (2015). A constant resistance analysis and control of cascaded buck and boost converter for wireless EV chargers. 3157-3161. Paper presented at 30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015, Charlotte, United States. https://doi.org/10.1109/APEC.2015.7104803