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segunda-feira, 29 de dezembro de 2014

A Novel Circuit Configuration of UPS with Auxiliary Inverter and Its Specific Control Implementations Katsuya Hirachi and Mutsuo Nakaoka





A Novel Circuit Configuration of UPS with Auxiliary Inverter and Its Specific Control Implementations
Katsuya Hirachi and Mutsuo Nakaoka
RESEARCH AND DEVELOPMENT DIVISION POWER SUPPLY  COMPANY,YUASA,OSAKA JAPAN.
DEPT. OF ELECTRICAL AND ELECTRONICS ENGINEERING  YAMAGUCHI UNIVERSITY
YAMAGUCHI JAPAN

Abstract
 The rapid expansion of small computers over the last 10-odd years has brought about great changes in the circumstances affecting UPSs. There are strong demands that UPSs become much smaller and lighter, and more economical, which has resulted in the wide application of the circuit topology without transformer. A disadvantage of such UPS topology is that the DC link voltage is very high, which invites decreased reliability and increased cost of battery bank. Some circuit configurations were proposed to eliminate this disadvantage, but they still had problems. In this paper, a novel circuit configuration which eliminates these problems is proposed and evaluated by the experimental results of prototype UPS.
LINK
http://jpe.or.kr/archives/view_articles.asp?seq=79
LINK DIRECT
http://manuscript.jpe.or.kr/ltkPSWeb/pub/pubfpfile.aspx?ppseq=79

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