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:
Feb. 02, 2016
Filed:
Jun. 28, 2012
Hirokazu Inoue, Yamoto, JP;
Hirokazu Inoue, Yamoto, JP;
KYOCERA Corporation, Kyoto, JP;
Abstract
A grid-connected inverter apparatus includes: an inverterfor converting a DC output based on power generated from a power generation equipmentinto an AC; a DC voltage measuring unitfor measuring a DC voltage on a DC input side of the inverter; a grid interconnection switchhaving two independent relay switcheseach corresponding to phases of a grid power systemto which the inverteris connected; and a control unitfor controlling the two relay switches, such that the control unit, after opening the two relay switches, changes the relay switchsuch that the opening control is changes to closing control and, based on a change in the DC voltage measured by the DC voltage measuring unitbefore and after the changing control, determines whether the relay switchis faulty.