ZVS Turn-on integrated Triangular Current Mode Three-phase PFC for EV On-board Chargers

Jian Sun, Yang Wu, Batista Soeiro, Zian Qin, Pavol Bauer

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

132 Downloads (Pure)

Abstract

An efficient, compact and lightweight three-phase AC-DC power factor correction (PFC) converter becomes a necessity for electric vehicles (EVs) On-board chargers (OBCs) in conventional grid-to-vehicle (G2V) and vehicle-to-grid (V2G) charging methods. The commercially available OBCs have very limited power density despite the moderate efficiency under specific power levels. In this paper, the integrated triangular current mode (iTCM) control is implemented to improve the power density (kW/L) and specific power (kW/kg) of the three-phase PFC converter stage while maintaining high efficiency. Zero voltage switching (ZVS) turn-on is realized in the iTCM control with a higher switching frequency to reduce the LCL filter size without sacrificing efficiency. By adding an LC branch between the bridge leg and mid-point of the DC link, the high-frequency and low-frequency currents are split to minimize the inductor loss and to derive a better inductor design. Analytical modeling and simulation in PLECS are conducted to verify the idea of iTCM. The capacitor-current feedback active damping method is implemented to prevent instability from the LC and LCL filters. The design of an 11kW three-phase AC-DC PFC converter, including the input LCL filter, achieves an efficiency of 98.81%, a power density of 12.46 kW/L and a specific power per weight of 1.87 kW/kg. The proposed three-phase iTCM control is benchmarked in a 3 kW SiC MOSFET-based AC-DC converter.
Original languageEnglish
Title of host publicationProceedings of the 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC)
PublisherIEEE
Pages285-294
Number of pages10
ISBN (Electronic)978-1-6654-9681-0
ISBN (Print)978-1-6654-9682-7
DOIs
Publication statusPublished - 2022
Event2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC) - Brasov, Romania
Duration: 25 Sept 202228 Sept 2022
Conference number: 20th

Publication series

Name2022 IEEE 20th International Power Electronics and Motion Control Conference, PEMC 2022

Conference

Conference2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC)
Country/TerritoryRomania
CityBrasov
Period25/09/2228/09/22

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • On-board chargers
  • power factor correction
  • integrated triangular current mode
  • zero voltage switching

Fingerprint

Dive into the research topics of 'ZVS Turn-on integrated Triangular Current Mode Three-phase PFC for EV On-board Chargers'. Together they form a unique fingerprint.

Cite this