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.

Date of Patent:
Apr. 06, 2021

Filed:

Feb. 19, 2018
Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Takahiro Kato, Chiyoda-ku, JP;

Kikuo Izumi, Chiyoda-ku, JP;

Akiko Tabuchi, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/12 (2006.01); H02M 7/493 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/126 (2013.01); H02M 7/493 (2013.01); H02M 2001/0009 (2013.01);
Abstract

A controller of each power conversion device in a power conversion system controls a switching element unit, based on a detected value of reactor current flowing through a filter reactor, a detected value of output voltage output between the terminals of a filter capacitor, and a detected value of output current flowing through an output reactor. The controller generates a voltage command based on the output current and the output voltage and generates a correction amount of the voltage command based on the output current in which a reference frequency component is removed. The controller generates a current command based on the addition value of the voltage command and the correction amount and controls the switching element unit such that the reactor current matches the current command.


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