Supercapacitor Characterization and Thermal Modelling With Reversible and Irreversible Heat Effect

Gualous, Hamid; Louahlia-Gualous, H.; Gallay, R.

doi:10.1109/tpel.2011.2145422

Cited by 134 publications

(96 citation statements)

References 10 publications

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“…As a matter of fact, it has been demonstrated that the internal resistance decreases while the DLC temperature increases; moreover, high operating frequencies cause a lessening of the same system [16] [17].…”

Section: Parametric Analysismentioning

confidence: 99%

Observability of a 2-branch Double-Layer-Capacitor

Alonge¹,

Cirrincione²,

Vitale³

et al. 2015

REPQJ

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Abstract. The paper proposes a study of the observability of a 2-branch Double-Layer Capacitor (DLC) mathematical model, derived from its well known 2-branch nonlinear physical model. The study is a basis to perform the diagnosis of the system by employing observers. The analysis is carried out by means of the sufficient rank condition of the observability matrix for nonlinear models. It is shown that the rank condition is satisfied everywhere in the two-dimensional state space, except for a characteristic curve in the plane defined by the two state variables. This curve is usually outside the usual range of operation of Double-Layer Capacitors available on the market. Finally, it is shown that the above curve is sensitive to the resistance of the branch containing the nonlinear capacitance, i.e. the faster branch. In particular, increasing this resistance can cause the curve to intersect the region of usual range of operation of a DLC.Keywords. DLC, SC, supercapacitor, observability, state-space, diagnosis. List of variables Variables(s) DescriptionDim.

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Section: Parametric Analysismentioning

confidence: 99%

Observability of a 2-branch Double-Layer-Capacitor

Alonge¹,

Cirrincione²,

Vitale³

et al. 2015

REPQJ

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“…Supercapacitor [14][15][16] bridges the gap between conventional capacitor and rechargeable battery. It is a new technology for the storage of electrical energy.…”

Section: Li-fe Battery and Supercapacitormentioning

confidence: 99%

Power Management of Hybrid Power Systems with Li-Fe Batteries and Supercapacitors for Mobile Robots

Wang

Dai²,

Guan

et al. 2014

Advances in Mechanical Engineering

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This paper presents an energy management strategy of a Li-Fe battery and supercapacitor hybrid power system to provide both high power density and energy density for mobile robots with fluctuating workloads. A two-phase power-optimization approach is proposed to exploit the high power density of supercapacitors and the high energy density of Li-Fe batteries. With our strategy, large peak power can be provided for a short time period whenever needed, while low power can be provided for very long time. A set of experiments have been conducted. The experimental results show that our strategy can effectively improve the performance of mobile robots and extend the lifetime of batteries.

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“…De Levie [11] developed a theory on the capacitance in each pore of porous electrodes being modeled as an RC transmission line. Previous thermal models predicted the thermal behavior of a UC by solving the transient heat conduction equation in one- [12], two- [13,14], or three-dimensional space [15][16][17]. Most of those thermal models [13,[15][16][17] neglected the reversible heat generation in a UC cell.…”

Section: Introductionmentioning

confidence: 99%

“…They studied the heat management of supercapacitor modules for vehicle applications by using their model. Gualous et al [14] developed a thermal model to study the supercapacitor temperature distribution in steady and transient states. They placed a thermocouple inside the supercapacitor to validate their model.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling of the Electrical and Thermal Behaviors of an Ultracapacitor

Lee

Kim

et al. 2014

Energies

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This paper reports a modeling methodology to predict the electrical and thermal behaviors of a 2.7 V/650 F ultracapacitor (UC) cell from LS Mtron Ltd. (Anyang, Korea). The UC cell is subject to the charge/discharge cycling with constant-current between 1.35 V and 2.7 V. The charge/discharge current values examined are 50, 100, 150, and 200 A. A three resistor-capacitor (RC) parallel branch model is employed to calculate the electrical behavior of the UC. The modeling results for the variations of the UC cell voltage as a function of time for various charge/discharge currents are in good agreement with the experimental measurements. A three-dimensional thermal model is presented to predict the thermal behavior of the UC. Both of the irreversible and reversible heat generations inside the UC cell are considered. The validation of the three-dimensional thermal model is provided through the comparison of the modeling results with the experimental infrared (IR) image at various charge/discharge currents. A zero-dimensional thermal model is proposed to reduce the significant computational burden required for the three-dimensional thermal model. The zero-dimensional thermal model appears to generate OPEN ACCESSEnergies 2014, 7 8265 the numerical results accurate enough to resolve the thermal management issues related to the UC for automotive applications without relying on significant computing resources.

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Supercapacitor Characterization and Thermal Modelling With Reversible and Irreversible Heat Effect

Cited by 134 publications

References 10 publications

Observability of a 2-branch Double-Layer-Capacitor

Observability of a 2-branch Double-Layer-Capacitor

Power Management of Hybrid Power Systems with Li-Fe Batteries and Supercapacitors for Mobile Robots

Modeling of the Electrical and Thermal Behaviors of an Ultracapacitor

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