Development of Uninterruptible Power Supply Using Flywheel Energy Storage Techniques.
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- Takahashi Isao
- Nagaoka University of Technology
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- Andoh Itaru
- Sendai National College of Technology
Bibliographic Information
- Other Title
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- フライホイールエネルギー貯蔵技術を用いた無停電電源装置の開発
- フライホイール エネルギー チョゾウ ギジュツ オ モチイタ ム テイデン デ
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Abstract
A new uninterruptible power supply (UPS) having a flywheel for a energy storage unit is described. The UPS of the rating of 5(kW) and 100(V) has following characteristics:<br>(1) Battery less system which makes maintenance free and long life about three times of a battery UPS.<br>(2) Simple power conversion circuit of a half bridge configuration which can realize good input and output waveforms, high efficiency, small size and light weight.<br>Inside of the flywheel unit rotating 30, 000rpm is vacuumized to eliminate windage losses by a small vacuum pump. And the flywheel rotor is made no mechanical touch in high speed states to get as long life as 30 years. A electrical main circuit is consisted of a half bridge converter, a symmetrical half bridge inverter, and a inverter/converter to drive the fiywheel induction motor/generator. Charging or discharging control of the mechanical energy is achieved by controlling the slip frequency of the induction machine.
Journal
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- IEEJ Transactions on Industry Applications
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IEEJ Transactions on Industry Applications 112 (9), 877-882, 1992
The Institute of Electrical Engineers of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679633660544
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- NII Article ID
- 10003097402
- 130000959928
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- NII Book ID
- AN10012320
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- ISSN
- 13488163
- 09136339
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- NDL BIB ID
- 3782814
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed