Reduction of subharmonic oscillation at high frequency operation of a power inverter

Reduction of subharmonic oscillation at high frequency operation of a power inverter

A control architecture for an electrical inverter includes a synchronous frame current regulator and a stationary frame current regulator. The stationary frame current regulator receives input currents that represent filtered versions of stationary frame currents that correspond to the inverter outp...

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Hauptverfasser: Bae, Bonho, Patel, Nitinkumar R, Schulz, Steven E, Hiti, Silva
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Sprache:eng
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creator Bae, Bonho
Patel, Nitinkumar R
Schulz, Steven E
Hiti, Silva
description A control architecture for an electrical inverter includes a synchronous frame current regulator and a stationary frame current regulator. The stationary frame current regulator receives input currents that represent filtered versions of stationary frame currents that correspond to the inverter output currents. The control architecture employs an adaptive filter module that filters the stationary frame currents to remove the fundamental motor frequency component (and its related harmonics), thus extracting any low frequency harmonic components. The stationary frame current regulator processes the low frequency components, while the synchronous frame current regulator processes the fundamental frequency component, resulting in suppression of low frequency oscillations in the inverter output.
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title Reduction of subharmonic oscillation at high frequency operation of a power inverter
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