Line-interactive UPS using a fuel cell as the primary source

Research output: Contribution to journalArticleAcademicpeer-review

194 Citations (Scopus)

Abstract

This paper proposes a line-interactive fuel-cell-powered uninterruptible-power-supply system. A three-port bidirectional converter connects a fuel cell and a supercapacitor to a grid-interfacing inverter. The system can operate in both stand-alone and grid-connected modes. Moreover, an active filtering function is integrated into the system. It is shown that a supercapacitor can serve as both an active and a reactive energy storage and can buffer the periodical low-frequency ripple in the requested power. For connecting the system to the utility grid, a high-performance single-phase phase-locked loop that incorporates an orthogonal filter is presented. Resonant controllers for both the voltage and current regulations eliminate steady-state error and implement selective harmonic compensation. Simulation and experimental results are provided to show the feasibility of the proposed system and the effectiveness of the control methods.
Original languageEnglish
Pages (from-to)3012-3021
Number of pages10
JournalIEEE Transactions on Industrial Electronics
Volume55
Issue number8
DOIs
Publication statusPublished - 2008

Fingerprint Dive into the research topics of 'Line-interactive UPS using a fuel cell as the primary source'. Together they form a unique fingerprint.

Cite this