EPE Association: EPE 2013 - LS1f: Power Factor Correction

EPE 2013 - LS1f: Power Factor Correction
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 17: Power supplies > EPE 2013 - LS1f: Power Factor Correction

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   A Voltage-Sensorless Interleaved Rectifier with PFC
By Osamu MIYASHITA, Toshiya YOSHIDA, Yuuki MATSUI, Junichi YAMAMOTO [View]
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Abstract: A new control method for a single-phase PFC rectifier consisting of interleaved sub-converters is proposed. Only one current sensor is used. No conventional voltage sensors are involved. The secondary coil of the inductor in one of the two step-up sub-converters is used for PFC control. The ac-side and dc-side voltage information required for the control is easily obtained from the induced voltage in the coil. Each sub-converter carries half of the total amount of current. No control is needed for the current sharing. Unity-power-factor operation is achieved. Simulation and experimental studies verify that the proposed method has practicability.

   High Performance Direct Power Control of Three-Phase PWM Boost Rectifier under Different Supply Voltage Conditions
By Abdelouahab BOUAFIA, Jean-Paul GAUBERT, Abdelmadjid CHAOUI [View]
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Abstract: Conventional direct power control (DPC) technique is a simple and efficient control strategy for three-phase PWM rectifier. However, its performance is deteriorated when the converter is supplied by unbalanced or distorted grid voltages. This paper presents the design and implementation of a new DPC scheme based on disturbance rejection principle to achieve sinusoidal input currents operation of three-phase PWM rectifier under different supply voltage conditions. In the proposed DPC, instantaneous active and reactive powers provided by harmonic component of input currents are chosen as controlled variables. Both controlled power reference are given from the outside of the controller and are set to zero to achieve full rejection of any grid disturbance. Moreover, the control strategy minimizes a cost function to select the optimum converter voltage vector allowing the best tracking of controlled powers. Finally, the effectiveness of the proposed DPC scheme is verified through several simulation and experimental tests. Results have proven an excellent performance and good robustness of the proposed DPC under different supply voltage conditions, compared to lookup table-based conventional DPC.

   New Unidirectional High-Efficiency Three-Level Single-Phase Bridgeless PFC Rectifier
By Andre LANGE, Thiago SOEIRO, Marcio ORTMANN, Marcelo HELDWEIN [View]
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Abstract: This work presents a new multilevel unidirectional single-phase PFC rectifier topology well-suited forapplications targeting for high efficiency and/or high power density. The characteristics of thisrectifier topology, including the principles of operation, modulation strategy, feedback control scheme,and dimensioning equations are described in this paper. Finally, a 3 kW laboratory prototype isconstructed and used in order to verify the characteristics of the new converter.

   Single-Phase/-Stage NPC-Based Rectifier Integrating a Simple DCM PFC Technique
By Andre Luiz FUERBACK, Aenaldo Jose PERIN, Marcelo HELDWEIN [View]
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Abstract: This work aims to present a simple strategy to build a single phase/-stage PFC converter with near unity power factor, using a NPC cell and passive elements to produce an input current with low distortion while feeding a battery cell bank with constant current. It is based on a discontinuous conduction mode technique and a standard phase-shift modulation to drive the NPC active switches. To demonstrate its effectiveness a 1.5 kW battery charger was built and tested.

EPE 2013 - LS1f: Power Factor Correction
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2013 ECCE Europe - Conference > EPE 2013 - Topic 17: Power supplies > EPE 2013 - LS1f: Power Factor Correction
	[return to parent folder]

	A Voltage-Sensorless Interleaved Rectifier with PFC By Osamu MIYASHITA, Toshiya YOSHIDA, Yuuki MATSUI, Junichi YAMAMOTO	[View] [Download]
Abstract: A new control method for a single-phase PFC rectifier consisting of interleaved sub-converters is proposed. Only one current sensor is used. No conventional voltage sensors are involved. The secondary coil of the inductor in one of the two step-up sub-converters is used for PFC control. The ac-side and dc-side voltage information required for the control is easily obtained from the induced voltage in the coil. Each sub-converter carries half of the total amount of current. No control is needed for the current sharing. Unity-power-factor operation is achieved. Simulation and experimental studies verify that the proposed method has practicability.

	High Performance Direct Power Control of Three-Phase PWM Boost Rectifier under Different Supply Voltage Conditions By Abdelouahab BOUAFIA, Jean-Paul GAUBERT, Abdelmadjid CHAOUI	[View] [Download]
Abstract: Conventional direct power control (DPC) technique is a simple and efficient control strategy for three-phase PWM rectifier. However, its performance is deteriorated when the converter is supplied by unbalanced or distorted grid voltages. This paper presents the design and implementation of a new DPC scheme based on disturbance rejection principle to achieve sinusoidal input currents operation of three-phase PWM rectifier under different supply voltage conditions. In the proposed DPC, instantaneous active and reactive powers provided by harmonic component of input currents are chosen as controlled variables. Both controlled power reference are given from the outside of the controller and are set to zero to achieve full rejection of any grid disturbance. Moreover, the control strategy minimizes a cost function to select the optimum converter voltage vector allowing the best tracking of controlled powers. Finally, the effectiveness of the proposed DPC scheme is verified through several simulation and experimental tests. Results have proven an excellent performance and good robustness of the proposed DPC under different supply voltage conditions, compared to lookup table-based conventional DPC.

	New Unidirectional High-Efficiency Three-Level Single-Phase Bridgeless PFC Rectifier By Andre LANGE, Thiago SOEIRO, Marcio ORTMANN, Marcelo HELDWEIN	[View] [Download]
Abstract: This work presents a new multilevel unidirectional single-phase PFC rectifier topology well-suited forapplications targeting for high efficiency and/or high power density. The characteristics of thisrectifier topology, including the principles of operation, modulation strategy, feedback control scheme,and dimensioning equations are described in this paper. Finally, a 3 kW laboratory prototype isconstructed and used in order to verify the characteristics of the new converter.

	Single-Phase/-Stage NPC-Based Rectifier Integrating a Simple DCM PFC Technique By Andre Luiz FUERBACK, Aenaldo Jose PERIN, Marcelo HELDWEIN	[View] [Download]
Abstract: This work aims to present a simple strategy to build a single phase/-stage PFC converter with near unity power factor, using a NPC cell and passive elements to produce an input current with low distortion while feeding a battery cell bank with constant current. It is based on a discontinuous conduction mode technique and a standard phase-shift modulation to drive the NPC active switches. To demonstrate its effectiveness a 1.5 kW battery charger was built and tested.