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Patent Searching and Data


Title:
POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/064361
Kind Code:
A1
Abstract:
This uninterruptible power supply device is configured such that, in an inverter power supply mode and a bypass power supply mode, respective phase differences between first to third carrier wave signals (CS1-CS3) for a converter (1) and fourth to sixth carrier wave signals (CS4-CS6) for an inverter (2) are set to 180 degrees, and, in an overlap power supply mode, the respective phase differences between the first to third carrier wave signals and the fourth to sixth carrier wave signals are set to 0 degrees. Thus, a zero-phase current (I01, I02) and a circulating current (ICL) can be reduced.

Inventors:
OOURA, Yousuke (3-1-1 Kyobashi Chuo-k, Tokyo 31, 〒1040031, JP)
Application Number:
JP2017/034861
Publication Date:
April 04, 2019
Filing Date:
September 27, 2017
Export Citation:
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Assignee:
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION (3-1-1 Kyobashi, Chuo-ku Tokyo, 31, 〒1040031, JP)
International Classes:
H02M7/48; H02J9/06; H02M5/45; H02M7/12
Domestic Patent References:
WO2013145248A12013-10-03
WO2011036767A12011-03-31
Foreign References:
JP2009124836A2009-06-04
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Festival Tower West, 2-4 Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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