EPE Association: EPE 2017 - DS3d: Power Factor Correction Techniques

EPE 2017 - DS3d: Power Factor Correction Techniques
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2017 ECCE Europe - Conference > EPE 2017 - Topic 02: Power Converter Topologies and Design > EPE 2017 - DS3d: Power Factor Correction Techniques

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   A Novel Bridgeless Flyback Power Factor Correction Rectifier with Single Output Winding and Reduced Components Voltage Stress
By Saman A. GORJI [View]
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Abstract: In this paper, a novel bridgeless Flyback power factor correction rectifier is presented. Two active power switches, rather than the line-voltage diode bridge, are used to provide the bidirectional power flow. In comparison with the existing Flyback rectifiers, the proposed topology uses less number of transformer windings which simplifies the complexity of implementation in terms of magnetic utilization. Besides, the voltage stress on the output diodes and capacitors is reduced. After carrying out a detailed theoretical analysis, performance of the proposed converter was verified by simulations and experiments. The experimental tests on a 110 V to 48 V, 50W prototype reveal that an average efficiency at 90\% and a high power factor can be achieved.

   Direct Control for Active Power in single-phase application on perturbed network
By Maurice FADEL [View]
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Abstract: There are today many techniques for controlling active filters on single-phase networks in order to correct the power factor and limit the harmonics consumed at the source. Almost all of these methods are determined for a perfect sinusoidal source. The work developed here concerns the taking into account of a perturbed network, that is to say the presence of voltage harmonics at the connection point. The results are validated by experiment on a low power system.

   Modified OCC DCM Boost PFC Rectifier
By Alex ABRAMOVITZ [View]
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Abstract: This paper is concerned with modification of the One Cycle Controller for DCM Boost high quality rectifier. With the proposed control circuit the boost converter can attain a near unity power factor and near zero total harmonic distortion. This paper presents the theoretical analysis, simulation and experimental results.

   Third Harmonic Compensation in a Single-Phase H-bridge PFC
By Alireza KHALIGH [View]
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Abstract: This paper presents a harmonic compensation method, which can be used to significantly reduce lower-order harmonics in the grid-side current of single phase power factor correction (PFC) circuits. Often there are limitations on the percentage of lower-order harmonics in the grid currents to maintain conducted EMI standard, which may be violated, especially during light load conditions. The proposed harmonic compensation technique can reduce the amount of these lower-order harmonics, thus leading to an improvement in the line current total harmonic distortion (THD). H-Bridge based boost topology is a popular choice for single-phase PFCs because of its simple control and high performance. An experimental prototype of 600W is developed to validate the proposed harmonic compensation technique. THD improvement from 7\% to 5\% at lighter load with 97\% full-load efficiency are observed from the experimental results.

   VOLTAGE-SOURCE-INVERTER-BASED CONDUCTANCE-SIGNAL-CONTROLLED SHUNT ACTIVE POWER FILTER
By Andrzej SZROMBA [View]
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Abstract: A universal control method for shunt active power filters based on the notion of load equivalentconductance is presented. The considered technique is often referred to as the closed-loop indirectcontrol, or the global compensation method. This technique is universal in use and may be easilyimplemented for three-phase network as well as for AC or DC ones. In the first part of the paper thegeneral idea of the control method of the active filter, which is based on the load equivalentconductance signal, is described. Then computer simulations and laboratory tests are presented.

EPE 2017 - DS3d: Power Factor Correction Techniques
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2017 ECCE Europe - Conference > EPE 2017 - Topic 02: Power Converter Topologies and Design > EPE 2017 - DS3d: Power Factor Correction Techniques
	[return to parent folder]

	A Novel Bridgeless Flyback Power Factor Correction Rectifier with Single Output Winding and Reduced Components Voltage Stress By Saman A. GORJI	[View] [Download]
Abstract: In this paper, a novel bridgeless Flyback power factor correction rectifier is presented. Two active power switches, rather than the line-voltage diode bridge, are used to provide the bidirectional power flow. In comparison with the existing Flyback rectifiers, the proposed topology uses less number of transformer windings which simplifies the complexity of implementation in terms of magnetic utilization. Besides, the voltage stress on the output diodes and capacitors is reduced. After carrying out a detailed theoretical analysis, performance of the proposed converter was verified by simulations and experiments. The experimental tests on a 110 V to 48 V, 50W prototype reveal that an average efficiency at 90\% and a high power factor can be achieved.

	Direct Control for Active Power in single-phase application on perturbed network By Maurice FADEL	[View] [Download]
Abstract: There are today many techniques for controlling active filters on single-phase networks in order to correct the power factor and limit the harmonics consumed at the source. Almost all of these methods are determined for a perfect sinusoidal source. The work developed here concerns the taking into account of a perturbed network, that is to say the presence of voltage harmonics at the connection point. The results are validated by experiment on a low power system.

	Modified OCC DCM Boost PFC Rectifier By Alex ABRAMOVITZ	[View] [Download]
Abstract: This paper is concerned with modification of the One Cycle Controller for DCM Boost high quality rectifier. With the proposed control circuit the boost converter can attain a near unity power factor and near zero total harmonic distortion. This paper presents the theoretical analysis, simulation and experimental results.

	Third Harmonic Compensation in a Single-Phase H-bridge PFC By Alireza KHALIGH	[View] [Download]
Abstract: This paper presents a harmonic compensation method, which can be used to significantly reduce lower-order harmonics in the grid-side current of single phase power factor correction (PFC) circuits. Often there are limitations on the percentage of lower-order harmonics in the grid currents to maintain conducted EMI standard, which may be violated, especially during light load conditions. The proposed harmonic compensation technique can reduce the amount of these lower-order harmonics, thus leading to an improvement in the line current total harmonic distortion (THD). H-Bridge based boost topology is a popular choice for single-phase PFCs because of its simple control and high performance. An experimental prototype of 600W is developed to validate the proposed harmonic compensation technique. THD improvement from 7\% to 5\% at lighter load with 97\% full-load efficiency are observed from the experimental results.

	VOLTAGE-SOURCE-INVERTER-BASED CONDUCTANCE-SIGNAL-CONTROLLED SHUNT ACTIVE POWER FILTER By Andrzej SZROMBA	[View] [Download]
Abstract: A universal control method for shunt active power filters based on the notion of load equivalentconductance is presented. The considered technique is often referred to as the closed-loop indirectcontrol, or the global compensation method. This technique is universal in use and may be easilyimplemented for three-phase network as well as for AC or DC ones. In the first part of the paper thegeneral idea of the control method of the active filter, which is based on the load equivalentconductance signal, is described. Then computer simulations and laboratory tests are presented.