• Title/Summary/Keyword: Hybrid fuel cell-battery system

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A Feasibility Study of Low-Cost Hybrid Fuel-Cell System for Ship Auxiliary Power (선박 보조전원을 위한 저가형 하이브리드 연료전지 시스템 적용 타당성 연구)

  • Yang, Geun Ryoung;An, Sang Yong;Choo, Jin Hoon
    • New & Renewable Energy
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    • v.9 no.4
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    • pp.3-12
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    • 2013
  • This paper proposes the hybrid fuel cell system that can solve disadvantages of existing fuel cell system and ensure high reliability and high stability. The system consists of PEM fuel cell, Ni-MH battery and power management system. In this system, when the power provided from the fuel cell is higher than the load power, the extra energy may be used to charge the Ni-MH battery. When the fuel cell can not provide enough energy to the load, the shortage of energy will be supplied by the Ni-MH battery. Experimental results show that the output voltage is regulated well during load variations. Also, high system efficiency is achieved.