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:
Apr. 28, 2015
Filed:
Mar. 12, 2009
Kaoru Koyanagi, Tokyo, JP;
Satoshi Nagata, Tokyo, JP;
Kaoru Koyanagi, Tokyo, JP;
Satoshi Nagata, Tokyo, JP;
VPEC, Inc., Tokyo, JP;
Abstract
The objective of this invention is to provide an autonomous distributed electric power system without depending on a known electric power system. In order to achieve such objective, this invention proposes a following feature: Output frequencies of autonomous grid-connection inverters () are to be variably controlled by the control system depending on a change of a stored electric power amount [kWh] of the direct current electric power storage device () within an alternating-current autonomous-distributed electric power system; and, such electric power system is built of plural electric power supplier and demander () who have electric power storage devices with a system which can control such inverters (); those inverters are voltage self-exciting as well.