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:
Apr. 24, 2018

Filed:

Dec. 18, 2014
Applicant:

Daewoo Shipbuilding & Marine Engineering Co., Ltd., Seoul, KR;

Inventors:

Ho Young Jung, Geoje-si, KR;

Young Ho Bae, Geoje-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/34 (2006.01); H02J 1/00 (2006.01); H02J 1/10 (2006.01); H02J 3/36 (2006.01); H02J 3/38 (2006.01); E21B 3/02 (2006.01); H02P 3/18 (2006.01); H02M 3/04 (2006.01); H02M 7/04 (2006.01); H02J 3/28 (2006.01); H02J 3/30 (2006.01); H02J 3/32 (2006.01);
U.S. Cl.
CPC ...
H02J 1/00 (2013.01); E21B 3/02 (2013.01); H02J 1/102 (2013.01); H02J 3/28 (2013.01); H02J 3/30 (2013.01); H02J 3/32 (2013.01); H02J 3/36 (2013.01); H02J 3/381 (2013.01); H02J 7/34 (2013.01); H02J 7/345 (2013.01); H02M 3/04 (2013.01); H02M 7/04 (2013.01); H02P 3/18 (2013.01); H02J 2001/106 (2013.01); Y02E 60/16 (2013.01); Y02E 60/60 (2013.01);
Abstract

A power supply system offshore plant comprises: a generator; an AC/DC converter converting, AC generated from the generator into DC to supply the direct current to a DC bus; a power load connected to the DC bus to generate regenerative power; a first power storage unit for storing power when a voltage of the DC bus is maintained at a level of a first threshold value or higher for a first time period, and supplying the stored power to the DC bus when the voltage of the DC bus is maintained at a level of a second threshold value or lower for a second time period; and a first resistance unit for consuming power when the voltage of the DC bus is maintained at the level of the first threshold value or higher for a third time period. The third time period is longer than the first time period.


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