Self-Excitation Traction Alternator for Locomotive
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United States of America Patent
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Issued Date -
Jul 6, 2017
app pub date -
Jan 5, 2016
filing date -
Jan 5, 2016
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Abstract
A self-excitation system for a locomotive having at least a primary mover is provided. The self-excitation system may include a traction alternator, a permanent magnet machine, and a chopper circuit. The traction alternator may include an alternator stator and an alternator rotor mechanically coupled to a drive shaft of the primary mover. The permanent magnet machine may include a machine stator and a machine rotor mechanically coupled to the drive shaft. The chopper circuit may be configured to receive electrical signals from the machine stator and control a field excitation of the traction alternator.
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