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:
Dec. 15, 2020
Filed:
Jun. 28, 2017
The University of Tokyo, Tokyo, JP;
Hideya Ochiai, Tokyo, JP;
Hiroyuki Ikegami, Tokyo, JP;
THE UNIVERSITY OF TOKYO, Tokyo, JP;
Abstract
The present disclosure provides a technique capable of improving an SN ratio of a current signal which is superimposed on a power line in a photovoltaic string and transmitted and efficiently specifying a failure location. A current sourceis connected to a power linein parallel with each of photovoltaic elements. A controllercontrols a current value of the current sourcesuch that a current signal is generated. A bypass capacitoris connected to the power lineto be parallel to the each of the photovoltaic elementsand the current source. Accordingly, the bypass capacitorcan transmit a current signal transmitted through the bypass capacitorfrom a negative electrode side in a photovoltaic string to a positive electrode side.