Dual closed loop control of LLC resonant converter for EV battery charger

Kerim Colak, Erdem Asa, Dariusz Czarkowski

Research output: Contribution to conferencePaperpeer-review

Abstract

In this paper, LLC resonant converter simulation with dual closed loop control is demonstrated for Electric Vehicles (EVs) battery charger. To improve efficiency and fast charging conditions, switching losses must be diminished to have a maximum energy transfer among the variable converter components. The presented dual closed loop control technique is implemented under soft-switching conditions with constant current and constant voltage control methods. The designed DC/DC resonant converter, fed by Power Factor Corrector (PFC) outputs 200-300 V, provides 60 V / 20 A at 1.2 kW. The simulation results show that differences in soft switching conditions are obtained by realizing input current and input voltage in phase under different output load conditions. At the same time, a battery is charged using Constant Current (CC) and Constant Voltage (CV) control techniques.

Original languageEnglish (US)
Pages811-815
Number of pages5
DOIs
StatePublished - 2013
Event2013 2nd International Conference on Renewable Energy Research and Applications, ICRERA 2013 - Madrid, Spain
Duration: Oct 20 2013Oct 23 2013

Other

Other2013 2nd International Conference on Renewable Energy Research and Applications, ICRERA 2013
CountrySpain
CityMadrid
Period10/20/1310/23/13

Keywords

  • constant current (CC)
  • constant voltage (CV)
  • converter
  • phase locked loop (PLL)
  • resonant LLC

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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