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This work presents the extended capabilities of a single-phase Pulse Width Modulation (PWM) rectifier to achieve a unity power factor (PF) in the Point of Common Coupling (PCC). It can act as a dynamic var compensator, fixed var compensator and Active Power Filter (APF). To accomplish such tasks a control scheme based in two cascaded loops is used. The outer loop regulates the dc bus voltage and provides...
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...
A comprehensive power quality controller combined with Thyristor Controlled Reactors (TCR) and Resonant Impedance Type Hybrid Active Filter (RITHAF) is proposed in this paper for power distribution system. The RITHAF topology presented in the paper is different from the conventional Active Power Filter (APF). The basic of the new RITHAF topology is to add a Fundamental Series Resonance Circuit (FSRC)...
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