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In order to improve the accuracy of the harmonic current compensation for the single-phase shunt active power filter, a compound control strategy is proposed with the PI control and repetitive paralleling based on the stationary frame, PI control is used to guarantee the system dynamic performance, the repetitive control is to improve the output current tracking accuracy for the load harmonic current...
An improved hybrid current control algorithm is presented for active power filter (APF) to compensate the harmonic current in three-phase four-wire asymmetric power system. Based on the analysis of the circuit structure of three-phase four-leg APF, the feasibility of hybrid current control is described in this paper. The method of instantaneous value comparison by timing control based on voltage space...
A new control strategy is developed for a four-level flying capacitor multilevel inverter to function as an active power filter (APF). This employs space vector modulation (SVM) scheme. However inverter switching vectors and sequences are determined according to the swings of capacitor voltage values at each level. A modified predictive current control law is developed This takes into account the...
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