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. 01, 2025
Filed:
Jan. 15, 2021
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Takuya Kajiyama, Tokyo, JP;
Toshiyuki Fujii, Tokyo, JP;
Shuhei Fujiwara, Tokyo, JP;
Yoshiyuki Kono, Tokyo, JP;
Ryosuke Uda, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02J 3/26 (2006.01); H02J 3/36 (2006.01); H02J 3/00 (2006.01); H02M 7/219 (2006.01); H02M 7/483 (2007.01);
U.S. Cl.
CPC ...
H02M 1/325 (2021.05); H02J 3/36 (2013.01); H02J 3/001 (2020.01); H02J 3/26 (2013.01); H02M 7/219 (2013.01); H02M 7/4835 (2021.05);
Abstract
A power conversion device includes a power converter connected between a multi-phase alternating-current circuit and a direct-current circuit, and a control device to control the power converter. The control device detects an unbalanced component indicating a voltage unbalanced component or a current unbalanced component of the alternating-current circuit and limits a magnitude of an alternating current flowing between the power converter and the alternating-current circuit based on the unbalanced component.