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:
Jul. 02, 2019
Filed:
Sep. 11, 2014
Japan Aerospace Exploration Agency, Tokyo, JP;
Masatoshi Uno, Hitachi, JP;
Akio Kukita, Kamakura, JP;
Japan Aerospace Exploration Agency, Tokyo, JP;
Abstract
[Problem] It is intended to provide a system, a related method and a minimum current detection and control system for, even when partial shading occurs in a string composed of a series connection of a plurality of solar cell modules, maintaining an output current of the whole. [Solution] By inputting an output voltage of the string into an inverter to convert the output voltage into an AC voltage and applying the AC voltage to the string via a multi-stage voltage multiplier rectification circuit, a compensation current is supplied to a shaded module on a priority basis to maintain an output current of the whole string while lowering an operating voltage of the shaded module by impedance generated on a pathway of the compensation current. Further provided are a system and the like constructed by multistage-connecting an output-side circuit section of one of various types of converters to the solar cell modules, and configured to supply a compensation current from the converter section to the shaded module on a priority basis.