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:
Nov. 26, 2019
Filed:
Jul. 10, 2015
Hitachi Systems, Ltd., Tokyo, JP;
Kazuki Watanabe, Tokyo, JP;
Hironori Wakana, Tokyo, JP;
Yoshihito Narita, Tokyo, JP;
Minoru Kaneko, Tokyo, JP;
Atsushi Suzuki, Tokyo, JP;
Tadanori Koike, Tokyo, JP;
Keiichi Nagashima, Tokyo, JP;
HITACHI SYSTEMS, LTD, Tokyo, JP;
Abstract
A defective photovoltaic cell module is identified without disconnection in a photovoltaic cell string. As a typical embodiment, in a photovoltaic power generation inspection system in a photovoltaic power generation system having a structure in which a plurality of photovoltaic cell strings are connected in parallel, the photovoltaic power generation system detecting a defective module among a plurality of modules included in a defective string, the photovoltaic power generation inspection system includes: a current detector that measures an output current of a photovoltaic cell string without disconnection; and a monitor unit that estimates a defective module based on change in a plurality of output currents each measured by the current detector while the photovoltaic cell modules included in the defective string are sequentially shielded from light by a light shielding member.