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. 03, 2026
Filed:
Apr. 16, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Yuya Tsuchimoto, Tokyo, JP;
Tatsuya Mori, Tokyo, JP;
Chiaki Fujimoto, Tokyo, JP;
Kenta Kubo, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A rotary machine control device includes: a first inverter that applies an alternating-current voltage to three-phase windings of a first system included in a rotary machine, according to a first direct-current voltage; a second inverter that applies an alternating-current voltage to three-phase windings of a second system included in the rotary machine; a first controller that generates a command value of a d-axis electric current of the first system, according to a direct-current voltage minimum value and a command value of the rotary machine, the direct-current voltage minimum value being a lower one of the first direct-current voltage and the second direct-current voltage, that generates a command value of a q-axis electric current of the first system, according to the direct-current voltage minimum value and the command value of the d-axis electric current of the first system, and that controls the first inverter, according to the command value of the d-axis electric current of the first system and the command value of the q-axis electric current of the first system; and a second controller that generates a command value of a d-axis electric current of the second system, according to the direct-current voltage minimum value and the command value of the rotary machine, that generates a command value of a q-axis electric current of the second system, according to the direct-current voltage minimum value and the command value of the d-axis electric current of the second system, and that controls the second inverter, according to the command value of the d-axis electric current of the second system and the command value of the q-axis electric current of the second system.