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. 30, 2009
Filed:
Apr. 27, 2005
Akira Satake, Tokyo, JP;
Atsuo Haishi, Tokyo, JP;
Akira Satake, Tokyo, JP;
Atsuo Haishi, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A synchronous machine control apparatus which can produce a torque level as close as possible to a desired torque command level while considering limitations on an output current of a power conversion unit. A synchronous machine control apparatus includes a torque current command generator including a torque current calculator for calculating a torque current command iδ** from a torque command τ* and a flux command φ*, a torque current limit generator for generating a maximum torque current command value iδ* max that can be generated based on a magnetizing current command iγ* and a current limit value imax, and a limiter for imposing limitations on iδ** based on iδ* max, a flux command generator for calculating the flux command φ* based on iδ* fed from the torque current command generator, a flux calculator for calculating an interlinked armature flux feedback value |Φ| based on an armature current feedback value, and a flux controller for generating the magnetizing current command iγ* such that φ* and |Φ| coincide with each other and delivering iγ* to the torque current command generator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile