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. 24, 2025
Filed:
Oct. 05, 2023
Kabushiki Kaisha Yaskawa Denki, Kitakyushu, JP;
Keita Shimamoto, Kitakyushu, JP;
Shinya Morimoto, Kitakyushu, JP;
KABUSHIKI KAISHA YASKAWA DENKI, Kitakyushu, JP;
Abstract
A power conversion device includes a power conversion circuit that converts primary-side power to secondary-side power and supplies the secondary-side power to an electric motor, and circuitry including a voltage command generator that generates a voltage command in a rotating coordinate system that rotates in synchronization with a magnetic pole position of the electric motor, based on a current command in the rotating coordinate system and a mutual inductance between a first coordinate axis and a second coordinate axis of the rotating coordinate system, and a controller that controls the power conversion circuit to apply a secondary-side voltage corresponding to the voltage command to the electric motor.