Method for determining a stator current vector for starting a synchronous machine of a drive of a passenger transportation apparatus
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United States of America Patent
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Nov 26, 2019
Grant Date -
Dec 7, 2017
app pub date -
Dec 18, 2015
filing date -
Dec 23, 2014
priority date (Note) -
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Abstract
A method for determining a stator current vector for starting a synchronous machine of a drive of a passenger transportation apparatus having a rotor and a stator with a stator winding may involve imposing different stator current vectors with different stator current vector directions on the stator winding over the course of a plurality of current application operations, determining from the different stator current vectors a minimum stator current vector with a minimum stator current vector direction at which a minimum driving torque acting on the rotor is generated in the synchronous machine, determining a starting stator current vector with a starting stator current vector direction from the minimum stator current vector, and imposing the starting stator current vector on the stator winding for starting the synchronous machine.
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