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. 21, 2017
Filed:
Sep. 25, 2014
Ebara Corporation, Tokyo, JP;
Kenta Tsukakoshi, Tokyo, JP;
Masakazu Komai, Tokyo, JP;
EBARA CORPORATION, Tokyo, JP;
Abstract
The present invention relates to a driving apparatus which performs vector control based on an output current of an inverter. The driving apparatus of the present invention includes a vector controller () for transforming three-phase output currents of an inverter () into a torque current and a magnetization current, and controlling the torque current and the magnetization current. The vector controller () includes a torque-voltage control section () for determining a torque-voltage command value based on a deviation between a torque-current command value and the torque current, a magnetization-voltage output section () for outputting 0 as a magnetization-voltage command value, a target-magnetization-current determination section () for determining a magnetization-current command value based on a deviation between a torque-voltage command value and a target-output-voltage value, and a target-output-voltage determination section () for determining the target-output-voltage value.