NDLI: 3-Phase Current-Source SMES-UPS Based on TFSC and its Control Strategies

Content Provider	IEEE Xplore Digital Library
Author	Wang Fu-sheng Li Hong-mei
Copyright Year	2006
Description	Author affiliation: Dept. of Electr. Eng., Hefei Univ. of Technol. (Wang Fu-sheng; Li Hong-mei)
Abstract	3-phase current-source SMES-UPS based on toroidal field superconducting coils (TFSC) is introduced in this paper, which serves for the exciting power supply (EPS) for TFSC when the power grid is in order, as well as for uninterrupted power supply (UPS) for the cryogenic and vacuum system once the deep voltage sag or other grid faults are detected. In the case of former, by controlling active and reactive current of AC side of converter, not only the DC current in TFSC slopes up to a steady value according to the referenced rate, but also the AC side of converter can achieves unit power factor and low harmonic distortion; in the case of latter, by controlling the AC current of converter with the feedback of protected loads voltage, not only the amplitude and frequency of protected loads voltage is steady, but also its phase is invariable. A 1.0 kVA prototype has been established and the experiment when it serves for EPS for TFSC, as well as UPS for protected loads are carried out, the results show that the proposed control strategies may fulfil the goals of SMES-UPS based on TFPS perfectly on either of above condition
Sponsorship	China Electrotechnical Soc. IEEE Power Electron. Soc
Starting Page	1
Ending Page	5
File Size	301658
Page Count	5
File Format	PDF
ISBN	1424404487
DOI	10.1109/IPEMC.2006.4778027
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage control Analog-digital conversion Protection Power supplies Uninterruptible power systems Voltage fluctuations Control systems Superconducting coils Power grids Cryogenics Control Strategies Current-Source SMES-UPS TFSC EPS UPS
Content Type	Text
Resource Type	Article

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