An Input-Oriented Power Sharing Control Scheme With Fast-Dynamic Response for ISOP DAB DC–DC Converter

Hou, Nie; Gunawardena, Pasan; Wu, Xuesong; Ding, Li; Zhang, Yue; Li, Yunwei

doi:10.1109/tpel.2021.3138126

Cited by 36 publications

(17 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ripple frequency of the charging current increases by N times the inductor current. The ripple of the battery charging current can be expressed as (12).…”

Section: B Bidirectional Non-isolated Convertermentioning

confidence: 99%

“…Among them, input-series and output-parallel (ISOP) connected modular dc-to-dc converters enable the optimization of high input voltage and high output current converters [4], [6]- [8], [10], [11]. In general, DAB (dual active bridge) is more suitable for high-power applications with high efficiency, bidirectional operation, and fault isolation compared to other isolated dc-to-dc converters [12]- [14] and is used for applications such as high and medium power [15]- [29]. The control of the modular structure must ensure proper voltage and current distribution between modules to achieve safe and suitable operation [4], [6], [9], [10].…”

Section: Introductionmentioning

confidence: 99%

“…These existing studies focus more on power-sharing performance. They have not conducted studies on the disturbance of input voltage and load current by the fast dynamic response of the ISOP DAB dc-to-dc converter [12]. This paper, rather than solving the ISOP problem through the control method, solves the problem through the combined topology using DAB and the non-isolated converter.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Battery Energy Storage System With Interleaving Structure of Dual-Active-Bridge Converter and Non-Isolated DC-to-DC Converter With Wide Input and Output Voltage

Park

Kim

et al. 2022

IEEE Access

View full text Add to dashboard Cite

We propose a circuit topology suitable as a battery charge/discharge tester with a DAB converter and a non-isolated dc-dc converter as a module structure. The module structure can be configured to have a wide input and output voltage range because it is easy to expand. DAB converters are used for bidirectional power transfer and galvanic isolation. By controlling the phase difference of the voltages across the DAB to be almost identical, the generation of circulating current due to the phase difference is minimized, and the ZVS is guaranteed. In addition, by switching at a phase angle that flattens the DAB switch current, the peak current is reduced to diminish the switch's conduction loss, lowering the switch current rating, and reducing the magnetic core size. The non-isolated dc-dc converter is used to control the battery output voltage. Through the interleaved structure, good dynamic characteristics and current ripple can be reduced, so the effect of improving the battery lifecycle can be expected. We present four seriesparallel structures of the proposed converter and compare them with the case of generating an output voltage only with a DAB converter. Analyze the characteristics of automatic voltage balancing due to the difference between the input capacitors' initial voltage and capacitance connected in series. We analyze the features of the proposed system through simulation and verify the technical feasibility and excellence of the proposed battery charge/discharge tester through charge/discharge experiments using supercapacitors instead of batteries.INDEX TERMS Battery charge/discharge tester, Converters, Dual active bridge (DAB), input-series and output-parallel (ISOP), Interleaved, Non-isolated, zero-voltage switching (ZVS)

show abstract

“…The ripple frequency of the charging current increases by N times the inductor current. The ripple of the battery charging current can be expressed as (12).…”

Section: B Bidirectional Non-isolated Convertermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Battery Energy Storage System With Interleaving Structure of Dual-Active-Bridge Converter and Non-Isolated DC-to-DC Converter With Wide Input and Output Voltage

Park

Kim

et al. 2022

IEEE Access

View full text Add to dashboard Cite

show abstract

“…• Cascaded DAB converter: Cascaded converter is an effective solution for MVDC systems, where the two-level H-bridges are employed as the series modules to withstand higher voltages [6,[30][31][32][33]. The amount of cascaded modules can be modified flexibly according to the DC voltages and voltagerating of the switches.…”

Section: Introduction 11 Backgroundmentioning

confidence: 99%

“…The amount of cascaded modules can be modified flexibly according to the DC voltages and voltagerating of the switches. Input-parallel-output-series (IPOS) is one of the most popular structures among various cascaded DAB converters (when LVDC is the input and MVDC is the output) [6,30,31]. As shown in Fig.…”

Section: Introduction 11 Backgroundmentioning

confidence: 99%

Efficient and Reliable Control of Multi-Level Dual-Active-Bridge Converters

Ci¹

View full text Add to dashboard Cite

General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.-Users may download and print one copy of any publication from the public portal for the purpose of private study or research. -You may not further distribute the material or use it for any profit-making activity or commercial gain -You may freely distribute the URL identifying the publication in the public portal -

show abstract