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:
Dec. 17, 2024

Filed:

Nov. 12, 2019
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Akito Nakayama, Tokyo, JP;

Yuki Ishii, Tokyo, JP;

Takuya Kajiyama, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/56 (2020.01); H02M 1/00 (2007.01); H02M 3/335 (2006.01); H02M 7/483 (2007.01); H02M 7/5387 (2007.01);
U.S. Cl.
CPC ...
G01R 31/56 (2020.01); H02M 1/0016 (2021.05); H02M 7/483 (2013.01); H02M 7/53871 (2013.01); H02M 3/33573 (2021.05); H02M 3/33592 (2013.01);
Abstract

A power converter to be tested is supplied with arm current from a hysteresis converter in a state in which it is connected to an auxiliary converter through a line. In the power converter and the auxiliary converter, a circulation operation is performed in which a current path bypassing power storage elements is formed between an output terminal of the power converter and an output terminal of the auxiliary converter, after the start of output of arm current in accordance with a reference current command value in which an AC component and a DC component are superimposed, until a DC component of arm current reaches a predetermined level. After execution of the circulation operation, in the power converter and the auxiliary converter, voltage control of the power storage elements and the output terminals is started.


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