Design of a module switch for battery pack reconfiguration in high-power applications

Baronti, Federico; Fantechi, G.; Roncella, Roberto; Saletti, Roberto

doi:10.1109/isie.2012.6237283

Cited by 23 publications

(10 citation statements)

References 19 publications

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“…BMSs are sometimes also asked to dynamically manage the battery architecture [54,55], by controlling the parallelization of battery strings when the battery architecture is modular, and the battery capacity in ampere-hour can be selected and adapted to the application requirements by choosing the number of strings to be connected in parallel. Even part of the battery module series, that increase the battery voltage, can be excluded by the BMS with a bypass switch, in order to allow the module substitution or maintenance without interrupting the energy storage service [56]. Finally, the BMS provides the communication functions required to insert the ESS in the micro-grid network, by which, the grid management functions and the policies regarding the energy flux management, are carried out.…”

Section: Energy Storage System Technologies For Micro-gridsmentioning

confidence: 99%

Hybrid Micro-Grids Exploiting Renewables Sources, Battery Energy Storages, and Bi-Directional Converters

2019

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This paper analyzes trends in renewable-energy-sources (RES), power converters, and control strategies, as well as battery energy storage and the relevant issues in battery charging and monitoring, with reference to a new and improved energy grid. An alternative micro-grid architecture that overcomes the lack of flexibility of the classic energy grid is then described. By mixing DC and AC sources, the hybrid micro-grid proposes an alternative architecture where the use of bi-directional electric vehicle chargers creates a micro-grid that directly interconnects all the partner nodes with bi-directional energy flows. The micro-grid nodes are the main grid, the RES and the energy storage systems, both, on-board the vehicle and inside the micro-grid structure. This model is further sustained by the new products emerging in the market, since new solar inverters are appearing, where a local energy storage for the RES is available. Therefore, the power flow from/towards the RES becomes bi-directional with improved flexibility and efficiency.

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Section: Energy Storage System Technologies For Micro-gridsmentioning

confidence: 99%

Hybrid Micro-Grids Exploiting Renewables Sources, Battery Energy Storages, and Bi-Directional Converters

2019

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“…Dynamic battery reconfiguration is very attractive [27,29,30], but it requires bypass switches able to withstand the battery current. A MBS implementation that can carry a continuous current up to 150 A is described in [31].…”

Section: Bms Architecturesmentioning

confidence: 99%

E-transportation: the role of embedded systems in electric energy transfer from grid to vehicle

Baronti

Chow

et al. 2016

J Embedded Systems

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Electric vehicles (EVs) are a promising solution to reduce the transportation dependency on oil, as well as the environmental concerns. Realization of E-transportation relies on providing electrical energy to the EVs in an effective way. Energy storage system (ESS) technologies, including batteries and ultra-capacitors, have been significantly improved in terms of stored energy and power. Beside technology advancements, a battery management system is necessary to enhance safety, reliability and efficiency of the battery. Moreover, charging infrastructure is crucial to transfer electrical energy from the grid to the EV in an effective and reliable way. Every aspect of E-transportation is permeated by the presence of an intelligent hardware platform, which is embedded in the vehicle components, provided with the proper interfaces to address the communication, control and sensing needs. This embedded system controls the power electronics devices, negotiates with the partners in multi-agent scenarios, and performs fundamental tasks such as power flow control and battery management. The aim of this paper is to give an overview of the open challenges in E-transportation and to show the fundamental role played by embedded systems. The conclusion is that transportation electrification cannot fully be realized without the inclusion of the recent advancements in embedded systems.

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“…To maximise the utilisation of a battery pack, usually each single battery cell is actively or passively balanced [3,4]. Another approach would be selective load management using switching elements to activate or inactivate each battery cell individually [5][6][7][8][9][10][11][12][13][14]. As shown in fig.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, defect or safety critical cells can be inactivated to be no longer under operation. While [5,6] used relays as cell switches, [7][8][9][10][11][12][13][14] apply semiconductors like thyristors or metal-oxide-semiconductor field-effect transistors (MOSFETs). To the best advantage, relays have a galvanic isolated control voltage, which easily allows to connect any number of stages.…”

Section: Introductionmentioning

confidence: 99%

Realising Serial Hybrid Energy Storage Systems (sHESS) by Implementing Switching Circuits on Battery Cell Level

Horsche

Sturm

Jossen

2016

WEVJ

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One approach to influence the current flow through the battery pack is to implement switching circuits. Two switching elements are necessary for each cell-stage to be bypassed or activated. This allows active load management. Thus the utilisation of the battery pack can be maximised in every situation. Adaptive control algorithms allow several kinds of operating strategies. Furthermore, dynamic output voltage can be generated to serve the best output for the downstream voltage level. A battery pack with an additional connection at its central point allows the generation of sine-shaped output voltages. As consequence of individual load management, different types of batteries or even different kinds of energy storages can be interconnected to built serial hybrid electrical energy storages. This novel approach allows precisely tailored battery packs for each application to enhance performance and energy supply.

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Design of a module switch for battery pack reconfiguration in high-power applications

Cited by 23 publications

References 19 publications

Hybrid Micro-Grids Exploiting Renewables Sources, Battery Energy Storages, and Bi-Directional Converters

Hybrid Micro-Grids Exploiting Renewables Sources, Battery Energy Storages, and Bi-Directional Converters

E-transportation: the role of embedded systems in electric energy transfer from grid to vehicle

Realising Serial Hybrid Energy Storage Systems (sHESS) by Implementing Switching Circuits on Battery Cell Level

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