Hybrid energy storage system and associated converters examination for DC distribution

Yuanmao Ye, Ka Wai Eric Cheng, Kai Ding, Daohong Wang, Yanjie Bao

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

5 Citations (Scopus)

Abstract

DC distribution main consist of power electronics components and converter. Energy storage system is also required to maintain the voltage stable for DC bus. This paper discusses the structure of a hybrid energy storage system (HESS) of battery and ultracapacitor. A new bidirectional DC-DC buck/boost converter used for energy transfer between DC bus and HESS is also analyzed in detail. It not only can operate bi-directionally, it can also provide three different working modes: buck, boost and buck-boost modes. The buck and boost mode can provide lower and higher voltage transfer ratio than traditional Buck and Boost converters respectively. Its buck-boost mode can provide positive output voltage. A cell balancing circuit with one center-tapped inductor and two active switches is also introduced in this paper. Its advantages of simple structure and energy fast-transferring make it more suitable for ultracapacitor string. Experimental and simulation results verified the feasibility of the two power converter circuit and HESS.
Original languageEnglish
Title of host publication2013 5th International Conference on Power Electronics Systems and Applications, PESA 2013
PublisherIEEE Computer Society
ISBN (Print)9781479932764
DOIs
Publication statusPublished - 1 Jan 2013
Event2013 5th International Conference on Power Electronics Systems and Applications, PESA 2013 - Hong Kong, Hong Kong
Duration: 11 Dec 201313 Dec 2013

Conference

Conference2013 5th International Conference on Power Electronics Systems and Applications, PESA 2013
Country/TerritoryHong Kong
CityHong Kong
Period11/12/1313/12/13

Keywords

  • battery
  • bidirectional DC converter
  • cell balancing
  • DC distribution
  • hybrid energy storage system
  • ultracapacitor

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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