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.
Patent No.:
Date of Patent:
Aug. 21, 2018
Filed:
Jan. 21, 2017
Applicant:
Lsis Co., Ltd., Anyang-si, Gyeonggi-do, KR;
Inventor:
Ho Seok Choi, Anyang-si, KR;
Assignee:
LSIS CO., LTD., Anyang-si, Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03J 3/18 (2006.01); H02M 1/42 (2007.01); H02M 1/08 (2006.01); H02J 3/18 (2006.01); H02J 3/26 (2006.01); G05F 1/70 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/4208 (2013.01); H02J 3/1864 (2013.01); H02J 3/26 (2013.01); H02M 1/08 (2013.01); H02M 2001/0009 (2013.01); Y02E 40/12 (2013.01); Y02E 40/50 (2013.01);
Abstract
A control apparatus in a static VAR compensator (SVC) system includes a plurality of current supply units for supplying phase currents configuring three-phase current of a power system, a plurality of current sensors for measuring the phase currents, and a controller for determining whether unbalance occurs in the three-phase current based on the phase currents, calculating an error corresponding to the unbalance according to the phase currents if unbalance occurs, and individually controlling at least one of the plurality of current supply units so as to compensate for the error.