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:
Oct. 26, 1999
Filed:
Sep. 16, 1998
Yasuhiro Yamamoto, Aichi, JP;
Kabushiki Kaisha Meidensha, Tokyo, JP;
Abstract
In a vector control apparatus and method for an induction motor, a magnetic flux observer of a full order is provided for receiving a primary voltage vector (v.sub.1) and a primary current vector (i.sub.1) and for generating a vector related to an estimated secondary magnetic flux component to be supplied to a current command calculating section and related to an estimate rotation phase of a rotary coordinate system to be supplied to a current controlling section based on the primary voltage vector and the primary current vector, the magnetic flux observer of the full order having a plurality of coefficients expressed in circuit constants of a T-I type equivalent circuit of the induction motor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile