Feasibility analysis of transportation battery second life used in backup power for communication base station

Zhu, Chunbo; Xu, Jianing; Liu, Kai; Li, Xiaoyu

doi:10.1109/itec-ap.2017.8080810

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2021

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Cited by 5 publications

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“…Hence, in this paper the authors compare in the same laboratory conditions two main topologies which seem the most promising: (1) the Si based single active bridge (SAB)-cost effective with basic features, and (2) the SiC based dual active bridge (DAB), bidirectional and ready for vehicle-to-grid (V2G) concept [23]. Both topologies are of OffBC type (in AC/DC/DC converter), when connected to the real second used EV battery-according to the battery second use (B2U) strategy to protect the natural environment and reduce the overall cost of EVs [24,25]. This detailed investigation clearly shows the pros and cons of both topologies.…”

Section: Introductionmentioning

confidence: 99%

“…With the mass use of electric vehicles in the future, it will provide the opportunity of stabilizing an electrical power grid based mainly on renewable resources [1][2][3]38]. This is the critical functionality of future energy systems with B2U [24,25], which would be a real alternative for expensive energy storages. Power electronics components play a key role in electric vehicle charging systems; therefore, the selection of the appropriate solution is one of the main factors in the development and implementation of these systems.…”

Section: Introductionmentioning

confidence: 99%

“…The DAB is equipped with soft-star modulation using a zero vector to reduce in-rush current in case of no-load operation, while the AC/DC grid connected converter remains bidirectional to assure the highest power quality in the PCC. All tests were made with a real battery B2U, which improves environmental, economic and technical feasibility of such systems for prosumers [24,25,42].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of AC/DC/DC Converter Modules for Direct Current Fast-Charging Applications

Piasecki¹,

Zaleski²,

Kazmierkowski³

et al. 2021

Energies

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The paper is a comprehensive laboratory comparison study of two galvanic isolated solution off-board battery chargers: (1) Si-based cost-effective case, and (2) SiC-bidirectional ready for vehicle to grid concept case. All circuits are modular, and in both cases the DC/DC converter can be replaced according to the end user requirements (the coupled transformer remains the same and is constructed based on 12xC100 cores to avoid additional choke). In the case of single active bridge, an active RCD snubber is proposed to protect against overvoltage above 1kV in the DC_2 circuit. The dual active bridge is equipped with soft-star modulation using a zero vector to reduce in-rush current in case of no-load operation, while the AC/DC grid connected converter remains bidirectional to assure the highest power quality at the point of common coupling. All tests were made with real second-used batteries, which improves environmental, economic and technical feasibility of such systems for prosumers. The total efficiency of both AC/DC/DC converters (>97% in SiC and >94% in Si versions) was investigated in the same laboratory conditions.

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Feasibility analysis of transportation battery second life used in backup power for communication base station

Cited by 5 publications

References 8 publications

Analysis of AC/DC/DC Converter Modules for Direct Current Fast-Charging Applications

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