NDLI: A Single Phase Uninterruptible Power System with a Gradationally Controlled Voltage Inverter

Content Provider	IEEE Xplore Digital Library
Author	Mori, O. Yamada, M. Iwata, A. Maruyama, S. Okada, J. Hatakeyama, Y.
Copyright Year	2006
Description	Author affiliation: Mitsubishi Electr. Corp., Hyogo (Mori, O.; Yamada, M.; Iwata, A.; Maruyama, S.; Okada, J.)
Abstract	We have developed a gradationally controlled voltage inverter which is capable of outputting a high-precision waveform even at low switching frequencies and have succeeded in putting it to practical use. This inverter uses plural inverters which have a binary or ternary DC-link voltage ratio with one another, and are connected in series to output the sum of their output voltages. The waveform of the resultant output voltage is quasi-sinusoidal. In this paper, a new UPS applying this technology is explained. The UPS with the high efficiency of 97% and the thin size of 29 mm/kVA has been realized by the miniaturization of the LC output filter and the loss reduction of the power devices
Starting Page	1956
Ending Page	1961
File Size	5030778
Page Count	6
File Format	PDF
ISBN	1424403901
ISSN	1553572X
DOI	10.1109/IECON.2006.347466
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-06
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Uninterruptible power systems Voltage control Control systems Pulse width modulation inverters Network servers Switching frequency Filters Voltage fluctuations Electrical equipment industry Industrial control
Content Type	Text
Resource Type	Article

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