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:
Jan. 26, 2021
Filed:
May. 17, 2017
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Masutaka Watanabe, Tokyo, JP;
Keiichi Enoki, Tokyo, JP;
Yoshimasa Nishijima, Tokyo, JP;
Shingo Harada, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01); H02P 25/22 (2006.01); H02P 29/024 (2016.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02P 25/22 (2013.01); H02P 27/06 (2013.01); H02P 29/0241 (2016.02);
Abstract
When the connection between a DC power source and a multigroup-multiphase electric-power conversion apparatus is cut off, a control apparatus controls switching devices so that the respective states of the two or more groups of electric-power conversion apparatuses included in the multigroup-multiphase electric-power conversion apparatus are each switched stepwise from all-phase short-circuiting state to an all-phase cutoff state at different timings.