The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 29, 2019

Filed:

Dec. 26, 2017
Applicants:

Fuji Electric Co., Ltd., Kanagawa, JP;

Riken, Saitama, JP;

Inventors:

Kouji Yutani, Yamanashi, JP;

Hiroyuki Yamano, Kanagawa, JP;

Reiri Kin, Tokyo, JP;

Toshiyuki Tsukamoto, Saitama, JP;

Assignees:

FUJI ELECTRIC CO., LTD., Kawasaki-shi, Kanagawa, JP;

RIKEN, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/48 (2007.01); H01M 10/44 (2006.01); H02J 3/32 (2006.01); H02J 7/34 (2006.01); H02M 5/45 (2006.01); H02M 5/458 (2006.01); G05F 1/66 (2006.01); H02M 7/06 (2006.01); H02M 5/42 (2006.01); H02J 3/38 (2006.01); H02M 11/00 (2006.01);
U.S. Cl.
CPC ...
H02M 5/458 (2013.01); G05F 1/66 (2013.01); H01M 10/44 (2013.01); H02J 3/32 (2013.01); H02J 7/345 (2013.01); H02M 7/06 (2013.01); H02J 3/382 (2013.01); H02M 5/42 (2013.01); H02M 7/48 (2013.01); H02M 11/00 (2013.01);
Abstract

A power fluctuation mitigation system for use in a power supply system that supplies AC power to a load includes an inverter unit including a first converter connected to an AC power supply to perform DC/AC conversion, a DC intermediate condenser, and an inverter connected to the first converter through the DC intermediate condenser to perform DC/AC conversion, and a power fluctuation mitigating device including a second converter connected to the AC power supply to perform AC/DC conversion, a capacitive storage device configured to be charged by an output of the second converter, and a charging unit to charge the DC intermediate condenser with power stored in the capacitive storage device, wherein the charging unit supplies power from the capacitive storage device to the DC intermediate condenser upon occurrence of fluctuation in an output of the inverter unit occurring in response to fluctuation in the load.


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