A switched-capacitor step-up inverter for bidirectional wireless charging applications in electric microcar

Y. C. Fong, K. W.E. Cheng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)

Abstract

Wireless power transfer (WPT) offers a more convenient and safer option for electric vehicle (EV) charging. However, the mismatch of the DC link voltages between the charging stations and small scale EVs may increase the difficulty of design and control of the charging facilities. Along with the growing penetration of renewable energy, vehicle-to-buildings (V2B) and vehicle-to-grid (V2G) interfaces, requiring bidirectional power flow would be the essential features of future EV wireless charging systems. In order to tackle this issue, this paper suggests a high-frequency step-up inverter based on series-parallel conversion of switched-capacitor with the associated staircase modulation and power flow control for WPT applications. Corresponding to the system parameters of a typical electric microcars, the operating principle and the power flow control of the proposed inverter are verified by simulation. The battery power as well as the primary and secondary AC waveforms of the simulation model are presented.

Original languageEnglish
Title of host publication2017 7th International Conference on Power Electronics Systems and Applications - Smart Mobility, Power Transfer and Security, PESA 2017
EditorsK.W. Eric Cheng
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-6
Number of pages6
ISBN (Electronic)9781538613863
DOIs
Publication statusPublished - 31 Jan 2018
Event7th International Conference on Power Electronics Systems and Applications - Smart Mobility, Power Transfer and Security, PESA 2017 - Hong Kong, Hong Kong
Duration: 12 Dec 201714 Dec 2017

Publication series

Name2017 7th International Conference on Power Electronics Systems and Applications - Smart Mobility, Power Transfer and Security, PESA 2017
Volume2018-January

Conference

Conference7th International Conference on Power Electronics Systems and Applications - Smart Mobility, Power Transfer and Security, PESA 2017
CountryHong Kong
CityHong Kong
Period12/12/1714/12/17

Keywords

  • DC-AC power converters
  • Electric vehicle (EV) charging
  • inductive power transfer (IPT)
  • switched-capacitor circuits

ASJC Scopus subject areas

  • Artificial Intelligence
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

Cite this