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:
Mar. 14, 2017
Filed:
Sep. 04, 2015
Applicant:
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Inventors:
Akihiro Odaka, Hino, JP;
Akio Toba, Hino, JP;
Assignee:
FUJI ELECTRIC CO., LTD., Kawasaki-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05D 23/275 (2006.01); H02P 29/00 (2016.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02P 29/0088 (2013.01); H02P 29/68 (2016.02); H02M 2001/327 (2013.01);
Abstract
A method for a power conversion apparatus to drive an electric motor using a power semiconductor device. The method includes detecting or estimating a temperature of the power semiconductor device to thereby obtain a detected or estimated temperature value, adjusting a torque command of the electric motor, so that the temperature of the power semiconductor device matches a preset temperature when the detected or estimated temperature value is equal to or higher than the preset temperature, and controlling the power semiconductor device using the adjusted torque command.