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:
Jun. 03, 2025
Filed:
Jan. 14, 2021
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Akane Hongyo, Tokyo, JP;
Yuki Taniyama, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 5/458 (2006.01); H02M 1/12 (2006.01); H02M 1/14 (2006.01); H02M 7/5387 (2007.01); H02P 27/06 (2006.01); H02P 29/50 (2016.01);
U.S. Cl.
CPC ...
H02M 5/458 (2013.01); H02M 1/126 (2013.01); H02M 1/14 (2013.01); H02M 7/5387 (2013.01); H02P 27/06 (2013.01); H02P 29/50 (2016.02);
Abstract
A power conversion device includes: a switching signal generator configured to generate a switching signal to output, from an inverter circuit, an AC voltage corresponding to a designated phase; a speed estimator configured to estimate an estimated phase of a rotor of a motor based on a current flowing through the motor; and a beat suppression controller configured to output an adjusted phase to the switching signal generator so as to suppress a beat component superimposed on the current flowing through the motor, the adjusted phase being obtained by adjusting the estimated phase.