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The high installation cost is the major obstacle of the commercialization of the solid oxide fuel cell for distributed power generation. This paper presents a new low cost 10-kW converter system to overcome this obstacle. The proposed system consists of an isolated dc-dc converter to boost the fuel cell voltage to 400 V dc and a pulse-width modulated inverter with filter to convert the dc voltage to two split-phase 120-V ac. The dc-dc converter uses phase shifting to control power flow through a transformer with a metal oxide semiconductor field effect transistor full bridge on the low voltage side and a voltage doubler on the high voltage side. One IPM is used to realize the voltage doubler and the dc-ac inverter. Compared to the existing fuel cell converter systems, the proposed circuit has low cost, less component count, smaller size, and reduced dc-dc converter peak current. Simulation and experimental results are demonstrated.
Published in:
Power Electronics, IEEE Transactions on
(Volume:19
,
Issue:
5
)
Date of Publication: Sept. 2004
- Page(s):
- 1315 - 1322
- ISSN :
- 0885-8993
- INSPEC Accession Number:
- 8122950
- Digital Object Identifier :
- 10.1109/TPEL.2004.833455
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 03 September 2004
- Issue Date :
- Sept. 2004
- Sponsored by :
- IEEE Power Electronics Society
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