Hybrid power management system using fuel cells and batteries

Jae Min Kim, Jin Seok Oh

Research output: Contribution to journalArticle

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Abstract

In the future, hybrid power management systems using fuel cells (FCs) and batteries will be used as the driving power systems of ships. These systems consist of an FC, a converter, an inverter, and a battery. In general, an FC provides steady-state energy; a battery provides the dynamic energy in the start state of a ship for enabling a smooth operation, and provides or absorbs the peak or dynamic power when the load varies and the FC cannot respond immediately. The FC voltage range is very wide and depends on the load; Therefore, the FC cannot directly connect to the inverter. In this paper, we propose a power management strategy and design process involving a unidirectional converter, a bidirectional converter, and an inverter, considering the ship’s operating conditions and the power conditions of the FC and the battery. The presented experimental results were verified through a simulation.
Original languageEnglish
Pages (from-to)122-128
Number of pages7
JournalJournal of Information and Communication Convergence Engineering
Volume14
Issue number2
DOIs
Publication statusPublished - 30 Jun 2016

Keywords

  • battery
  • unidirectional converter (UDC)
  • converter
  • energy
  • fuel cell
  • power

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