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Calculation of dynamic braking energy of frequency converter

  • 2013-09-22
  • 137.05KB
  • Points it Requires : 2

  When an induction motor is mechanically driven and a frequency converter provides a certain voltage to the motor\'s output terminals, it will act as a generator to feed back energy to the frequency converter. Usually, during the deceleration phase of the AC motor and load, most of the stored energy will be converted into electrical energy by the motor and fed back to the frequency converter. When a high inertia load suddenly decelerates, there will be too much feedback energy that cannot be absorbed by the frequency converter\'s DC bus, resulting in excessive voltage on the DC bus and tripping.

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