BACKSTEPPING CONTROL OF THREE-PHASE FOUR-LEG SHUNT ACTIVE FILTER
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Published
Feb 26, 2014
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Abstract
This paper deals with the application of a
backstepping strategy to control a three-phase shunt active power filter. The APF consists of four-leg voltage source
inverter bridge. The APF ensures full compensation for harmonic phase currents, harmonic neutral current, and reactive and unbalanced nonlinear load currents. It also
regulates its self-sustaining dc bus voltage. Complete simulation of the resultant active filtering system validates the efficiency of the proposed backstepping control law. Compared to the traditional control, the used of backstepping control allows to exhibit excellent transient response during balanced and unbalanced load.
backstepping strategy to control a three-phase shunt active power filter. The APF consists of four-leg voltage source
inverter bridge. The APF ensures full compensation for harmonic phase currents, harmonic neutral current, and reactive and unbalanced nonlinear load currents. It also
regulates its self-sustaining dc bus voltage. Complete simulation of the resultant active filtering system validates the efficiency of the proposed backstepping control law. Compared to the traditional control, the used of backstepping control allows to exhibit excellent transient response during balanced and unbalanced load.