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:
Mar. 03, 2020

Filed:

Sep. 03, 2015
Applicants:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Toshiba Energy Systems & Solutions Corporation, Kawasaki-shi, JP;

Inventors:

Yukitaka Monden, Kawasaki, JP;

Yuji Watanabe, Yokohama, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 3/18 (2006.01); H02M 7/537 (2006.01); H02J 3/32 (2006.01); H02J 3/46 (2006.01); H02J 3/12 (2006.01); H02M 7/44 (2006.01); G05B 19/042 (2006.01); H02J 3/24 (2006.01); H02J 13/00 (2006.01); H02M 1/32 (2007.01); G05F 1/10 (2006.01); G05F 1/70 (2006.01);
U.S. Cl.
CPC ...
H02J 3/18 (2013.01); G05B 19/042 (2013.01); H02J 3/12 (2013.01); H02J 3/24 (2013.01); H02J 3/32 (2013.01); H02J 3/46 (2013.01); H02J 13/0006 (2013.01); H02M 7/44 (2013.01); H02M 7/537 (2013.01); G05B 2219/2639 (2013.01); G05F 1/10 (2013.01); G05F 1/70 (2013.01); H02M 1/32 (2013.01); Y02E 40/30 (2013.01); Y02E 40/74 (2013.01); Y04S 10/22 (2013.01);
Abstract

When a voltage-fluctuation suppression device suppresses, for input/output of connected power between a first power grid, or a commercial power grid, and a second power grid including a power generation device and grid-connected to the first power grid, voltage fluctuations in the first power grid, a control unit includes a voltage allowable range computing unit, controls a ratio between active and reactive power output by the voltage-fluctuation suppression device to be equal to a ratio between active and reactive power of power flowing between the first and second power grids, and controls the ratio between the active and reactive power output by the voltage-fluctuation suppression device to be equal to the ratio between the active and reactive power of power flowing between the first and second power grids.


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