NDLI: A low-cost fuel-cell (FC) power electronic system (PES) for residential loads

Content Provider	IEEE Xplore Digital Library
Author	Burra, R.K. Huang, R. Mazumder, S.K.
Copyright Year	2004
Description	Author affiliation: Illinois Univ., Chicago, IL, USA (Burra, R.K.)
Abstract	We describe a low-cost power-electronics system (PES) for a solid-oxide fuel cell (SOFC) power system. The PES consists of a (DC/DC) zero-ripple boost converter (ZRBC) followed by a soft-switched multilevel high-frequency (HF) inverter and a single-phase cycloconverter. The zero input ripple-current feature of the boost converter improves the durability of the SOFC, while reducing the size and cost of the inductor. The multilevel arrangement of inverter switches reduces the voltage stress on the switches is sine-wave pulse-width modulated SPWM and has phase-shifted ZVS turn-on. The cycloconverter, switches at line frequency when the power transfer is active; otherwise, it switches at the switching frequency (20 kHz). A 1 kW prototype of the proposed PES achieved an overall efficiency of 91%. We present a detailed description of the operation of the PES and its key features and advantages. Finally, experimental results showing the performance and operation of the PES are demonstrated.
Sponsorship	Power Electron. Soc. of the Inst. of Electr. and Electron. Eng
Starting Page	468
Ending Page	473
File Size	311216
Page Count	6
File Format	PDF
ISBN	078038458X
DOI	10.1109/INTLEC.2004.1401510
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power electronics Switches Pulse width modulation inverters Fuel cells Power systems Hafnium Costs Inductors Voltage Stress
Content Type	Text
Resource Type	Article

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