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:
Nov. 05, 2019
Filed:
Nov. 25, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Kotaro Nakano, Tokyo, JP;
Noriyuki Wada, Tokyo, JP;
Daiki Matsuura, Tokyo, JP;
Hideaki Kawamoto, Tokyo, JP;
Hiroyuki Kobayashi, Hyogo, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;
Abstract
Provided is a control device for a permanent magnet-type rotating electrical machine (), which includes a current coordinate transformation unit () configured to output a d-axis current and a q-axis current by coordinate transformation of three-phase AC currents respectively detected by current detection units (), a current correction direction calculation unit () configured to calculate a current correction direction through use of the d-axis current and the q-axis current, and a current correction amount addition unit () configured to correct a d-axis current command and a q-axis current command based on the current correction direction. In this manner, an induced voltage is converged to lie within a maximum voltage circle in accordance with a power supply voltage.