RECTIFIER BASED TORSIONAL MODE DAMPING SYSTEM AND METHOD
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United States of America Patent
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Issued Date -
Aug 8, 2013
app pub date -
Mar 30, 2011
filing date -
Apr 1, 2010
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Abstract
A torsional mode damping controller system connected to a converter that drives a drive train including an electrical machine and a non-electrical machine. The controller system includes an input interface configured to receive measured data related to variables of the converter or the drive train and a controller connected to the input interface. The controller is configured to calculate at least one dynamic torque component along a section of a shaft of the drive train based on the measured data from the input interface, generate control data for a rectifier of the converter for damping a torsional oscillation in the shaft of the drive train based on the at least one dynamic torque component, and send the control data to the rectifier for modulating an active power exchanged between the converter and the electrical machine.
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