EPE Association: EPE 2019 - LS4b: Dual Active Bridge Converters (DAB)

EPE 2019 - LS4b: Dual Active Bridge Converters (DAB)
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2019 ECCE Europe - Conference > EPE 2019 - Topic 02: Power Converter Topologies and Design > EPE 2019 - LS4b: Dual Active Bridge Converters (DAB)

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   Cascaded Multilevel Topology Based on Quadruple Active Bridges for Phase Power Balancing in Large-scale PV Systems
By Kangan WANG [View]
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Abstract: Cascaded H-bridge (CHB) converters are promising candidates for large-scale PV system integration. However, unequal power generation from different modules can result in imbalanced three-phase grid currents. Therefore, a multilevel converter architecture based on quadruple active bridge (QAB) converters is proposed in this paper, which can actively distribute the generated power equally to three-phase H-bridge cells and ensure balanced grid currents. Besides, Zero Voltage Switching (ZVS) and the reactive current ratio of QAB converters in the whole operation range are analyzed. Simulation and experimental results validate the effectiveness of proposed topology.

   Experimental validation of a basic module based on a single-stage AC-DC converter, feasible to solid-state transformer applications
By José Willamy MEDEIROS DE ARAÚJO [View]
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Abstract: This paper shows the experimental validation of a basic module from a single-stage ac-dc bidirectional power converter, which is feasible for solid-state transformer applications. The proposed converter is based on the dual active bridge (DAB) using an interleave technique. The converter can be modularized and applied at high voltage in a three phase system operating as rectifier or inverter. The topology is briefly presented and experimental results from a small-scale prototype are discussed to validate its operation principles and control strategy. The results show that the control strategy is able to operate the converter properly maintaining all DC bus on reference value. The converter is also capable of operate with a high power factor and a low harmonic distortion. Simulation results are

   FOUR-PORT AC/DC-DC/AC DUAL ACTIVE BRIDGE BASED CONVERTER
By Diego ACEVEDO-BUENO [View]
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Abstract: In this paper, a Four-Port AC/DC-DC/AC conversion system is proposed using two full-bridge converters and a high-frequency transformer following the principle of Dual Active Bridge Converter. Two full-bridge AC/DC single-phase converters are connected by coupling their boost inductance to create a high-frequency transformer of the resulting proposed converter. The isolated power transfer between converters is controlled by the duty cycles and the phase-shift applied to the primary and secondary of the split transformer. The boundaries of the switching modes and the power transferred through the high-frequency transformer were obtained analytically. The system feasibility was validated by simulations and by a 300~W prototype with 94.9\\% maximum efficiency.

   Three Degrees of Freedom Operation of a Dual Half Bridge
By Fei GAO [View]
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Abstract: This paper presents a comprehensive study of a dual half bridge circuit (DHB) operated as a four-portconverter (independent phase shift, primary and secondary duty cycle). An analysis of possibleworking modes is categorized and the power transfer characteristics are derived. Finally experimentalresults validate the theoretical analysis.

EPE 2019 - LS4b: Dual Active Bridge Converters (DAB)
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2019 ECCE Europe - Conference > EPE 2019 - Topic 02: Power Converter Topologies and Design > EPE 2019 - LS4b: Dual Active Bridge Converters (DAB)
	[return to parent folder]

	Cascaded Multilevel Topology Based on Quadruple Active Bridges for Phase Power Balancing in Large-scale PV Systems By Kangan WANG	[View] [Download]
Abstract: Cascaded H-bridge (CHB) converters are promising candidates for large-scale PV system integration. However, unequal power generation from different modules can result in imbalanced three-phase grid currents. Therefore, a multilevel converter architecture based on quadruple active bridge (QAB) converters is proposed in this paper, which can actively distribute the generated power equally to three-phase H-bridge cells and ensure balanced grid currents. Besides, Zero Voltage Switching (ZVS) and the reactive current ratio of QAB converters in the whole operation range are analyzed. Simulation and experimental results validate the effectiveness of proposed topology.

	Experimental validation of a basic module based on a single-stage AC-DC converter, feasible to solid-state transformer applications By José Willamy MEDEIROS DE ARAÚJO	[View] [Download]
Abstract: This paper shows the experimental validation of a basic module from a single-stage ac-dc bidirectional power converter, which is feasible for solid-state transformer applications. The proposed converter is based on the dual active bridge (DAB) using an interleave technique. The converter can be modularized and applied at high voltage in a three phase system operating as rectifier or inverter. The topology is briefly presented and experimental results from a small-scale prototype are discussed to validate its operation principles and control strategy. The results show that the control strategy is able to operate the converter properly maintaining all DC bus on reference value. The converter is also capable of operate with a high power factor and a low harmonic distortion. Simulation results are

	FOUR-PORT AC/DC-DC/AC DUAL ACTIVE BRIDGE BASED CONVERTER By Diego ACEVEDO-BUENO	[View] [Download]
Abstract: In this paper, a Four-Port AC/DC-DC/AC conversion system is proposed using two full-bridge converters and a high-frequency transformer following the principle of Dual Active Bridge Converter. Two full-bridge AC/DC single-phase converters are connected by coupling their boost inductance to create a high-frequency transformer of the resulting proposed converter. The isolated power transfer between converters is controlled by the duty cycles and the phase-shift applied to the primary and secondary of the split transformer. The boundaries of the switching modes and the power transferred through the high-frequency transformer were obtained analytically. The system feasibility was validated by simulations and by a 300~W prototype with 94.9\\% maximum efficiency.

	Three Degrees of Freedom Operation of a Dual Half Bridge By Fei GAO	[View] [Download]
Abstract: This paper presents a comprehensive study of a dual half bridge circuit (DHB) operated as a four-portconverter (independent phase shift, primary and secondary duty cycle). An analysis of possibleworking modes is categorized and the power transfer characteristics are derived. Finally experimentalresults validate the theoretical analysis.