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A Single-Phase High Power Factor Rectifier - Asmi.A - 08-17-2017 A Single-Phase High Power Factor Rectifier, Based on a Two-Quadrant Shunt Active Filter [attachment=512] Abstract This paper presents a new technique to improve the input power factor of a single-phase rectifier followed by an inductive filter. It consists in the employment of a two-quadrant active power filter, based on a conventional bidirectional DC-DC converter, connected to the output side of the diode bridge. This technique allows the extension of this rectifier range operation in the continuous conduction mode. INTRODUCTION THE increasing of the electronic devices in industry and residences has created a major concern on the electric power quality issue, due to the fact that these equipments draw a current with high harmonic content from the grid. The devices which present this characteristic are known as nonlinear loads. SYSTEM MODELING AND CONTROL STRATEGY There are two main control strategies used in single-phase active power filter control: the active power filter current control and input current control. Both strategies require voltage and current control. The APF DC-link voltage (Vcf) control is responsible for the system active power flow control, since the APF active power flow must be zero, besides the components losses. The current control is responsible for the input current shape control, which must be a sine waveform in phase with the input voltage. CONCLUSION This paper has presented an active power filter topology, based on a bidirectional DC-DC two-quadrant converter, applied for the power factor correction of a single-phase rectifier followed by an inductive filter. Theoretical analyses were detailed, summarizing the main load characteristics and the load operation with the APF. Moreover, the proposed control strategy, system modeling and prototype design were shown. A Single-Phase High Power Factor Rectifier - chinna_rao - 08-17-2017 to get information about the topic "unified power factor control" full report ppt and related topic refer the page link bellow http://seminarsprojects.net/Thread-modelling-of-unified-power-flow-controller-into-power-systems-using-p-spice http://seminarsprojects.net/Thread-artificial-intelligence-based-three-phase-unified-power-quality-conditioner http://seminarsprojects.net/Thread-thyristor-based-power-factor-correction http://seminarsprojects.net/Thread-economic-comparision-of-power-factor-correction-by-capacitors-and-high-power-facto http://seminarsprojects.net/Thread-unified-power-flow-controller-full-report http://seminarsprojects.net/Thread-power-factor-correction-of-linear-and-non-linear-loads-employing-a-single-phase-activ http://seminarsprojects.net/Thread-automatic-power-factor-control http://seminarsprojects.net/Thread-a-single-phase-high-power-factor-rectifier http://seminarsprojects.net/Thread-digital-microprocessor-power-factor-controller http://seminarsprojects.net/Thread-power-factor-correction?pid=51952&mode=threaded |