The optimal design of GaN-based Dual Active Bridge for bi-directional Plug-IN Hybrid Electric Vehicle (PHEV) charger

Xue, Lingxiao; Mu, Mingkai; Boroyevich, Dushan; Mattavelli, Paolo

doi:10.1109/apec.2015.7104411

Cited by 40 publications

(27 citation statements)

References 8 publications

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“…Figure 8 shows a simulated 3D model in Maxwell ® . In the simulation, each winding layer is modeled as solid copper and the winding loss is calculated using SFD method [11]. The calculation of the proposed model agrees with the simulation.…”

Section: B Transformer Loss Modelmentioning

confidence: 81%

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Design of integrated transformer and inductor for high frequency dual active bridge GaN Charger for PHEV

Xue

Boroyevich

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper discusses the design of high power density transformer and inductor for the high frequency dual active bridge (DAB) GaN charger. Because the charger operates at 500 kHz, the inductance needed to achieve ZVS for the DAB converter is reduced to as low as 3µH. As a result, it is possible to utilize the leakage inductor as the series inductor of DAB converter. To create such amount of leakage inductance, certain space between primary and secondary winding is allocated to store the leakage flux energy. The designed transformer is above 99.2% efficiency while delivering 3.3kW. The power density of the designed transformer is 6.3 times of the lumped transformer and inductor in 50 kHz Si Charger. The detailed design procedure and loss analysis are discussed.

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Section: B Transformer Loss Modelmentioning

confidence: 81%

“…The selection of inductance value need to take account the battery voltage range, charging profile and DAB power delivery constraint in (1). The detailed selection guideline is covered in [11]. The resultant inductance value is around 3µH.…”

Section: Dab Operatton and Required Transformer Specificationsmentioning

confidence: 99%

Design of integrated transformer and inductor for high frequency dual active bridge GaN Charger for PHEV

Xue

Boroyevich

et al. 2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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“…To decrease the current stress of the secondary synchronous rectifier and suppress output current ripple, multiphase interleaved LLC SRC was adopted. In Reference [36], a bidirectional battery charger for a plug-in hybrid EV (PHEV) was built. This work was focused on the design of a 250/250-V, 2.4-kW, 500-kHz DAB stage, taking into account the challenging conditions, e.g., wide battery voltage range and sinusoidal charging capability, elimination of large DC link capacitors.…”

Section: Isolated Dc-dc Convertersmentioning

confidence: 99%

Review of GaN HEMT Applications in Power Converters over 500 W

2019

Electronics

104

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Because of the global trends of energy demand increase and decarbonization, developing green energy sources and increasing energy conversion efficiency are recently two of the most urgent topics in energy fields. The requirements for power level and performance of converter systems are continuously growing for the fast development of modern technologies such as the Internet of things (IoT) and Industry 4.0. In this regard, power switching devices based on wide-bandgap (WBG) materials such as silicon carbide (SiC) and gallium nitride (GaN) are fast maturing and expected to greatly benefit power converters with complex switching schemes. In low- and medium-voltage applications, GaN-based high-electron-mobility transistors (HEMTs) are superior to conventional silicon (Si)-based devices in terms of switching frequency, power rating, thermal capability, and efficiency, which are crucial factors to enhance the performance of advanced power converters. Previously published review papers on GaN HEMT technology mainly focused on fabrication, device characteristics, and general applications. To realize the future development trend and potential of applying GaN technology in various converter designs, this paper reviews a total of 162 research papers focusing on GaN HEMT applications in mid- to high-power (over 500 W) converters. Different types of converters including direct current (DC)–DC, alternating current (AC)–DC, and DC–AC conversions with various configurations, switching frequencies, power densities, and system efficiencies are reviewed.

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“…As shown in (11), the output power of a DAB converter can be expressed as a function of the displacement phase difference between the input ac voltage v i (t) and output ac voltage v o (t). Fig 7 shows the effect of this phase difference φ on the per-unit real, reactive and apparent power.…”

Section: B Effect Of φmentioning

confidence: 99%

“…The basic operating characteristics of DAB were enumerated by [4]- [6] and the optimal design constraints with respect to efficiency, power density etc. were explored by [8]- [11]. The effect of modulation strategy on the converter efficiency was explored by [10], [11]- [13], where it was shown that the optimal modulation scheme was one with the lowest rms current in the transformer while still maintaining ZVS on the primary and secondary converters.…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of capacitor-coupled and transformer-coupled dual active bridge converters

Channegowda

Venkataramanan

2016

2016 IEEE Energy Conversion Congress and Exposition (ECCE)

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Dual Active Bridge (DAB) converters are emerging to become the preferred high power DC-DC conversion topology to satisfy the requirements of modularity, high voltage transfer ratio, high efficiency and bidirectional power transfer capability. However transformer design for DAB converters remains a challenging problem, especially for high voltage conversion ratio and higher switching frequencies. Capacitor-coupled transformer-less DC-DC converters capable of arbitrary high voltage transfer ratio with reasonable efficiency have been recently introduced. The voltage gain in this case is achieved by series combination of capacitor coupled active bridge modules. This paper introduces the capacitor-coupled dual active bridge converter and compares it with the traditional transformer-coupled dual active bridge converter. A brief overview of the analytical models of both transformer-coupled and capacitor-coupled DAB converters is presented and the important design factors of both topologies are identified, followed by a comparative evaluation of a published benchmark design with details of all the power circuit components.

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The optimal design of GaN-based Dual Active Bridge for bi-directional Plug-IN Hybrid Electric Vehicle (PHEV) charger

Cited by 40 publications

References 8 publications

Design of integrated transformer and inductor for high frequency dual active bridge GaN Charger for PHEV

Design of integrated transformer and inductor for high frequency dual active bridge GaN Charger for PHEV

Review of GaN HEMT Applications in Power Converters over 500 W

Comparative evaluation of capacitor-coupled and transformer-coupled dual active bridge converters

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