Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study of Smart Uninterruptible Power Supply Capable High Efficiency Drive

고효율 운전이 가능한 지능형 무정전 전원장치에 관한 연구

  • Eom, Tae-Wook (Dongyang Mirae Univ. Dept. of Automation System)
  • 엄태욱 (동양미래대학교 자동화시스템과)
  • Received : 2013.02.01
  • Accepted : 2013.03.20
  • Published : 2013.05.31
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Abstract

In this paper, a control scheme with the capability of high efficiency, which is realized by predicting the conditions of a load power and an input power, is proposed for the uninterruptible power supply (UPS). Generally, on-line UPS system supplies a constant voltage and a constant frequency (CVCF). However, the efficiency of the On-line UPS system can be reduced due to the switching losses of semiconductor devices during the power conversion. The these losses are improved by the proposed smart UPS with the high efficiency drive system, which is realized by analysing and predicting the conditions of a load power and an input power.

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References

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