Passive Hybrid Storage Systems: Influence of circuit and system design on performance and lifetime

Grün, Thorsten; Smith, Anna; Ehrenberg, Helmut; Doppelbauer, Martin

doi:10.1016/j.egypro.2018.11.044

Cited by 7 publications

(9 citation statements)

References 16 publications

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“…There is a requirement for a simple cell balancing system, 73 measurable benefit in terms of vehicle range, 11 consider inhomogeneous developments of battery parameters over their service life, with capacity and resistance being relevant. 80 Threat: External environmental conditions could affect the performance of the HESS; the upper and lower voltage level of the ESS components restricts operational voltage range, 71 battery voltage constrains the HESS, and 64% of the stored SC energy is unused. 73 There is no vehicle range extension because HESS achieves the same lifespan and performance as a sole ESS.…”

Section: F I G U R E 1 0 Typical Hess Application Scenariomentioning

confidence: 99%

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Hybrid energy storage system topology approaches for use in transport vehicles: A review

Lencwe

Chowdhury

Olwal

2022

Energy Science & Engineering

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High peak current for vehicle starting, recuperation of regenerative braking energy, longer battery lifespan, and more significant acceleration among others in modern transport vehicles (TVs) require increased battery size. Moreover, batteries have high energy density and low power density. Therefore, a big battery pack can weigh more, shorten its lifespan, increase vehicle total mass, and increase battery degradation costs. On the one hand, higher power energy storage systems (ESSs) such as supercapacitors, lithium-ion capacitors, and superconducting magnetic ESSs have a lower energy density, higher power density, and greater lifespan. Thus, to satisfy the requirements of modern TVs, the combination of higher energy and higher power density can provide enhanced performance and a longer battery lifespan for these vehicles. Available research publications in the literature have addressed a similar problem. However, these publications have reported the findings separately, providing various research and conclusions.Currently, no available literature has compiled an intelligible and combined analysis for addressing hybrid ESS configurations, sizing methods, and energy management strategies to create further knowledge in this domain. There is a need to consolidate a compact and insightful knowledge toward this research direction for a more significant societal and industrial impact. This paper critically reviews the hybrid higher energy density batteries and higher power density ESSs used in TVs. It discusses the integration configurations, applications, and provides sizing methods to achieve the best hybrid energy storage systems (HESSs). Also, applied control methods are described for these HESSs such that the overall system performance matches the vehicle requirements. Lastly, it provides insights and future research direction for HESS configuration, sizing, and control.

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Section: F I G U R E 1 0 Typical Hess Application Scenariomentioning

confidence: 99%

“…Grün et al 71 investigate the direct connection between hybrid lithium‐SC ESSs. The investigation tests whether a direct link of dissimilar ESSs can improve lifespan, power, and energy density compared to a single ESS.…”

Section: State‐of‐the‐art Analysismentioning

confidence: 99%

Hybrid energy storage system topology approaches for use in transport vehicles: A review

Lencwe

Chowdhury

Olwal

2022

Energy Science & Engineering

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“…sc min (11) The capacity of the supercapacitor conforms to Ohm's law between the pack and the cell [31]. In Formula (11), N sc−s is the number of supercapacitors in series, N sc−p is the number of supercapacitors in parallel, C sc is the supercapacitor cell capacity, U sc max is the upper cut-off voltage of supercapacitors equal to 2.7 V, and U sc min is the lower cut-off voltage of supercapacitors equal to 1.35 V.…”

Section: Energy Matching Of Supercapacitorsmentioning

confidence: 99%

“…In the past decades, many different parameter matching methods have been presented in the literature. Grün T, et al [11] discussed the performances of a pure lithium-ion battery energy storage system and an HESS in the same volume and weight, and concluded that the HESS had a 22% increase in power density and a 15-30% reduction in load. In reference [12], the required power was split and the power at each moment was weighted to obtain the boundary conditions of parameter matching optimization.…”

Section: Introductionmentioning

confidence: 99%

Parameter Matching Method of a Battery-Supercapacitor Hybrid Energy Storage System for Electric Vehicles

Liu

Wang

Luo

2021

WEVJ

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To satisfy the high-rate power demand fluctuations in the complicated driving cycle, electric vehicle (EV) energy storage systems should have both high power density and high energy density. In order to obtain better energy and power performances, a combination of battery and supercapacitor are utilized in this work to form a semi-active hybrid energy storage system (HESS). A parameter matching method of battery-supercapacitor HESS for electric vehicles (EVs) is proposed. This method can meet the performance indicators of EVs in terms of power and energy for parameter matching. The result shows that optimized parameter matching is obtained by reducing the weight and cost.

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“…1b). In configurations with zero degrees (0D) of freedom , also known as passive hybridization, the SCs are directly connected to the batteries [23], [24]. Due to the absence of power electronics, this solution is the most affordable.…”

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confidence: 99%

Smart and Hybrid Balancing System: Design, Modeling, and Experimental Demonstration

Castro

Pinto

Barreras

et al. 2019

IEEE Trans. Veh. Technol.

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Performance of series connected batteries is limited by the 'weakest link' effect, i.e. the cell or group of cells with the poorest performance in terms of temperature, power, or energy characteristics. To mitigate the 'weakest link' effect, this study deals with the design, modeling and experimental demonstration of a smart and hybrid balancing system (SHBS). A cell-to-cell shared energy transfer configuration is proposed, including a supercapacitor bank in the balancing bus, thus enabling hybridization. Energy is transferred from each battery module connected in series to the balancing bus, and vice versa, by means of low-cost bi-directional dc-dc converters. The current setpoints of the converters are obtained by means of a smart balancing control strategy, implemented using convex optimization. The strategy is called 'smart' because it pursues goals beyond conventional state-of-charge equalization, including temperature and power capability equalization, and minimization of energy losses. Simulations show that the proposed SHBS is able to achieve all these goals effectively in an e-mobility application, and are also used to assess the impact of different hybridization ratios and cooling conditions. Finally, an experimental setup is developed to demonstrate the feasibility of the SHBS.

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Passive Hybrid Storage Systems: Influence of circuit and system design on performance and lifetime

Cited by 7 publications

References 16 publications

Hybrid energy storage system topology approaches for use in transport vehicles: A review

Hybrid energy storage system topology approaches for use in transport vehicles: A review

Parameter Matching Method of a Battery-Supercapacitor Hybrid Energy Storage System for Electric Vehicles

Smart and Hybrid Balancing System: Design, Modeling, and Experimental Demonstration

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