Morgan & Finnegan
Vector controlling method and apparatus for induction motor
 A vector controlling method and apparatus for an induction motor is disclosed in which a rotator magnetic flux is reliably obtained by using a newly deduced equation. The apparatus includes a rotator magnetic calculator and does not require a tachogenerator so that the rotator magnetic flux can be obtained by calculation. 
Samsung Aerospace Industries, Ltd.
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inventional inventional inventional
Jung G.
Kim