Closed Form Solution for Minimum Conduction Loss Modulation of DAB Converters

Krismer, Florian; Kolar, Johann W.

doi:10.1109/tpel.2011.2157976

Cited by 512 publications

(264 citation statements)

References 11 publications

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“…It shows that the efficiency improvement using the DPS is not as good as expected. The effect of the DPS in in terms of efficiency improvement is also undervalued in other studies [6], [8], [19], [20]. The possible reasons may include:…”

Section: T1mentioning

confidence: 98%

Reactive Power and Soft-Switching Capability Analysis of Dual-Active-Bridge DC-DC Converters with Dual-Phase-Shift Control

Wen¹,

Su²

2015

Journal of Power Electronics

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This paper focuses on a systematical and in-depth analysis of the reactive power and soft-switching regions of Dual Active Bridge (DAB) converters with dual-phase-shift (DPS) control to achieve high efficiency in a wide operating range. The key features of the DPS operating modes are characterized and verified by analytical calculation and experimental tests. The mathematical expressions of the reactive power are derived and the reductions of the reactive power are illustrated with respect to a wide range of output power and voltage conversion ratios. The ZVS soft-switching boundary of the DPS is presented and one more leg with ZVS capability is achieved compared with the CPS control. With the selection of the optimal operating mode, the optimal phase-shift pair is determined by performance indices, which include the minimum peak or rms inductor current. All of the theoretical analysis and optimizations are verified by experimental tests. The experimental results with the DPS demonstrate the efficiency improvement for different load conditions and voltage conversion ratios.

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Section: T1mentioning

confidence: 98%

Reactive Power and Soft-Switching Capability Analysis of Dual-Active-Bridge DC-DC Converters with Dual-Phase-Shift Control

Wen¹,

Su²

2015

Journal of Power Electronics

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“…Therefore, the rectifier currents are orthogonal which means that each harmonic amplitude of the sum (or difference) of the two rectifier currents equals the square root of the sum of the two corresponding rectifier harmonics squared. The RMS value of the first inverter current is, therefore, calculated as (13) and since rms(i r1 ) = rms(i r2 ), the RMS value of the inverter currents is (14) Therefore, with the proposed transformer configuration and turns ratio n = 1, the RMS value of the inverter currents is by a factor lower than the RMS value of the rectifier currents, while the peak value of the rectifier no-load voltage equals the peak value of the inverter voltage. Compared to the ISABC this property allows a significant reduction of the inverter conduc- tion loss.…”

Section: ) Operating Principlementioning

confidence: 99%

“…Apart from the higher possible power transfer, the fact that the primary side RMS current value is only times the secondary side RMS value (14) suggests that the primary side RMS currents of the CISABC are lower than the ones of the ISABC. The RMS inverter current to DC output current ratio of the CISABC is shown in Fig.…”

Section: ) Inverter Rms-and Peak-currentmentioning

confidence: 99%

High Bandwidth Non-Resonant High Voltage Generator for X-Ray Systems

2018

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“…It is a bidirectional converter [2] and it is based in the coordinate operation of two full bridge inverters, one inductor and, optionally, one isolation transformer. Several works deals about DAB converter, reference [2] shows a DC to DC application with output voltage stabilization, introduction of droop control can be found in [3], a comparison among other topologies in [4], a study about switching optimization in [5], implementation in AC-to-DC applications [6] and Home Area Network applications in [7].…”

Section: Workrooms Journal Nº 2 -July 2014mentioning

confidence: 99%

Designing Dual-Active Bridge (DAB) Converter for Energy Storage/Recovery Systems in a Lighting Smart Grid context

et al. 2014

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Abstract-Lighting Systems are suffering and important evolution with the introduction of LED lighting systems with new strategies of energy savings, incorporation of renewable energy sources and optionally a bidirectional interconnection with the mains (AC grid or DC interconnection bus). Lighting Systems are moving to Lighting Smart Grids and step by step integrating in Smart City strategies. In this context design of modular and efficient energy storage/recovery systems are gaining importance looking for future applications and new services. Thus, this work describes the design procedure of Dual-Active Bridge (DAB) Converter as energy storage/recovery system in the context of a Lighting Smart Grid. A complete study of this converters, design procedure in order to operate over the Optimal Line (no reactive power) and two simplified control strategy (Linear Phase Droop Control -LPDC and Cosine Phase Droop Control -CPDC) have been proposed, introducing in this way a robust design with modular and self-equalization capability.

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Closed Form Solution for Minimum Conduction Loss Modulation of DAB Converters

Cited by 512 publications

References 11 publications

Reactive Power and Soft-Switching Capability Analysis of Dual-Active-Bridge DC-DC Converters with Dual-Phase-Shift Control

Reactive Power and Soft-Switching Capability Analysis of Dual-Active-Bridge DC-DC Converters with Dual-Phase-Shift Control

High Bandwidth Non-Resonant High Voltage Generator for X-Ray Systems

Designing Dual-Active Bridge (DAB) Converter for Energy Storage/Recovery Systems in a Lighting Smart Grid context

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