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:
Jul. 12, 2011
Filed:
Feb. 06, 2007
Masanobu Inazumi, Kitakyushu, JP;
Masanobu Inazumi, Kitakyushu, JP;
Kabushiki Kaisha Yaskawa Denki, Kitakyushu-shi, JP;
Abstract
There is provided an electromechanical machine control system for variable speed controlling an electromechanical machine which can realize a desired control response and a stable control system by online regulating the gain of a linear differential controller by current feedback based on an electric parameter or mechanical parameter of the electromechanical machine. The electromechanical machine control system includes a current coordinate transformer () for coordinate transforming a current detection value of the electromechanical machine () which is inputted into a γ-axis current having the same phase as a position reference and a δ-axis current which advances 90 degrees further than the position reference, a δ-axis stabilizer () for implementing a linear differential control on the δ-axis current which is inputted to output a δ-axis current voltage correction amount and a δ-axis stabilizing gain regulator () for regulating the linear differential control gain of the δ-axis stabilizer.