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This paper represents the estimation method based on a benchmark system for control of active power filter (APF). The active power filter consists of a three-phase voltage source converter operating under pulse-width modulation. The method allows the harmonic prediction is employed to allow accurate harmonic compensation despite controller latencies. The current control is done in time domain. A three-phase...
With development of modern industry, more and more non-linear loads are used in power system, resulting in increasingly severe harmonic pollution. Harmonic becomes main factors affecting power quality. Active power filter, as the most effective method to eliminate harmonic, has been paid more and more attention recently. The current compensation performance of active power filter depends on the controller...
This paper presents a shunt active power filter application mainly for source current harmonic elimination. The proposed control method is based on instantaneous reactive power theory. A three-phase voltage source inverter bridge with a dc bus capacitor is used as an APF. It requires measuring the source currents with reduced number of current sensors than the existing methods. The source currents...
Three-phase shunt active power filters are designed to effectively compensate for the current harmonics and reactive power requirements in a three-phase system with harmonic loads. An ANN (artificial neural network) based controller selects the amount of harmonic current injection based on the percentage of harmonic distortion present in the source current and also on the reactive power requirement...
During the past decades, three-phase three-wire system plays a very important role in the power electronics research, especially in the PWM studies. However, in the distribution site, there are many three-phase four-wire equipments installed. In these systems, single-phase loads and non-linear three-phase loads can produce unbalanced line currents, generating a current into the neutral line as a consequence...
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