Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hidetoshi Kitanaka0
Date of Patent
June 28, 2011
Patent Application Number
12441857
Date Filed
October 19, 2006
Patent Primary Examiner
Patent abstract
A method of controlling a current command by comparing voltage with a set value needs to vary the set value depending on voltage fluctuation, which involves taking a complicated control. A vector controller for a permanent-magnet synchronous electric motor, according to the present invention, can realize with a simplified configuration a field-weakening operation in a one-pulse mode in a high speed range by providing a current command compensator that corrects a current command by a corrected current command calculated based on a modulation index.
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