Study on Power Conditioning System for Fuel Cell Power Generation with 2-Stage DC-DC Converter and Inverter

2단 구성 DC-DC 컨버터와 인버터에 의한 연료전지발전 계통연계시스템 연구

  • Published : 2009.08.01

Abstract

This paper proposes a new power conditioning system for the fuel cell power generation, which consists of a LLC resonant DC-DC converter and 3-phase inverter. The LLC resonant converter boosts the fuel cell voltage of 26-48V up to 400V, using the hard-switching boost converter and the high-frequency ZVS half-bridge converter. The operation of proposed power conditioning system was verified through simulations with PSCAD/EMTDC software. The feasibility of hardware implementation was verified through experimental works with a laboratory prototype, which was built with 1.2kW PEM fuel-cell stack, 1kW LLC resonant converter, and 3kW PWM inverter. The proposed system can be utilized to commercialize a real interconnection system for the fuel-cell power generation.

Keywords

References

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