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. 25, 2014
Filed:
Apr. 10, 2012
Kenji Nakajima, Chiyoda-ku, JP;
Masato Mori, Chiyoda-ku, JP;
Kenichi Akita, Chiyoda-ku, JP;
Mitsunori Tabata, Chiyoda-ku, JP;
Kenji Nakajima, Chiyoda-ku, JP;
Masato Mori, Chiyoda-ku, JP;
Kenichi Akita, Chiyoda-ku, JP;
Mitsunori Tabata, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
To provide an upper limit of a generated voltage or generated torque, to thereby prevent the occurrence of an overvoltage or excessive torque during power generation, a control selection section () chooses and outputs a minimum value between a control output of a generated voltage control section () for controlling a field current so that a B-terminal voltage of a polyphase AC generator-motor coincides with a generated voltage command and a control output of a generated torque control section () for controlling, based on the B-terminal voltage and a rotation speed, the field current so that generated torque of the polyphase AC generator-motor coincides with a generated torque command.