A Hybrid Electric Circuit Battery Model Capturing Dynamic Battery Characteristics

Khattak, Alamgir Ahmad; Khan, Asad; Safdar, Muhammad; Basit, Abdul; Zaffar, Nauman Ahmad

doi:10.1109/kpec47870.2020.9167659

Cited by 11 publications

(6 citation statements)

References 22 publications

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“…Computer modeling of charge-discharge processes was carried out in the LT SPICE application program package [9]. For this, based on the analysis of the known schemes for replacing the electrical circuits of the STB [10][11][12], an equivalent electrical circuit of both one section (Fig. 3.)…”

Section: Computer Simulation Of Chargedischarge Processes In the Stbmentioning

confidence: 99%

Computer modeling of charge-discharge processes in series-connected sections in storage batteries

Kogut,

Demyanchuk,

Prokopiv

2023

Phys. Chem. Sol. State

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A theoretical analysis of the initial charge and discharge processes in consecutive connected sections of the battery under the action of rectangular pulses was carried out, in particular, their influence on the uniformity of energy accumulation and return. The non-uniformity of energy accumulation and return between sections is shown. The equivalent electrical circuit of both single and serially connected battery sections is given. On the basis of equivalent electrical circuits, computer simulation of charge-discharge processes was carried out in the LT SPICE application program package.

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Section: Computer Simulation Of Chargedischarge Processes In the Stbmentioning

confidence: 99%

Computer modeling of charge-discharge processes in series-connected sections in storage batteries

Kogut,

Demyanchuk,

Prokopiv

2023

Phys. Chem. Sol. State

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“…Its equivalent circuit, describing the static and dynamic properties, is the starting point for creating a simulation model. In practice, many different forms of battery cell equivalent circuits are used [11][12][13][14][15][16][17][18][19][20][21], taking into account various physical and chemical phenomena. The appropriate choice of model depends on its intended use and the method by which its parameters will be identified.…”

Section: Introductionmentioning

confidence: 99%

“…For the purposes of battery design using the MBD method, models describing the dependence of the open-circuit voltage (OCV) characteristics on SOC [11,18,34,35] and the dynamic properties of the cell with one or two time constants are most often used. The Thevenin circuit [17,20,25,[36][37][38] is such model and was used in the research described here.…”

Section: Introductionmentioning

confidence: 99%

HPPC Test Methodology Using LFP Battery Cell Identification Tests as an Example

Białoń,

Niestrój,

Skarka

et al. 2023

Energies

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The aim of this research was to create an accurate simulation model of a lithium-ion battery cell, which will be used in the design process of the traction battery of a fully electric load-hull-dump vehicle. Discharge characteristics tests were used to estimate the actual cell capacity, and hybrid pulse power characterization (HPPC) tests were used to identify the Thevenin equivalent circuit parameters. A detailed description is provided of the methods used to develop the HPPC test results. Particular emphasis was placed on the applied filtration and optimization techniques as well as the assessment of the quality and the applicability of the acquired measurement data. As a result, a simulation model of the battery cell was created. The article gives the full set of parameter values needed to build a fully functional simulation model. Finally, a charge-depleting cycle test was performed to verify the created simulation model.

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“…In the case of more complex models, representing dynamic properties of the cell, the structure of the model is related to the identification method of its parameters. In the research presented here, the identification was made on the basis of the HPPC test [12], which allows for the identification of the parameters of the model in the form of a Thevenin RC circuit [9,[13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

PSO-Based Identification of the Li-Ion Battery Cell Parameters

2023

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The article describes the results of research aimed at identifying the parameters of the equivalent circuit of a lithium-ion battery cell, based on the results of HPPC (hybrid pulse power characterization) tests. The OCV (open circuit voltage) characteristic was determined, which was approximated using functions of various types, while making their comparison. The internal impedance of the cell was also identified in the form of a Thevenin RC circuit with one or two time constants. For this purpose, the HPPC pulse transients were approximated with a multi-exponential function. All of the mentioned approximations were carried out using an original method developed for this purpose, based on the PSO (particle swarm optimization) algorithm. As a result of the optimization experiments, the optimal configuration of the PSO algorithm was found. Three different cognition methods have been analyzed here: GB (global best), LB (local best), and FIPS (fully informed particle swarm). Three different swarm topologies were used: ring lattice, von Neumann, and FDR (fitness distance ratio). The choice of the cognition factor value was also analyzed, in order to provide a proper PSO convergence. The identified parameters of the cell model were used to build simulation models. Finally, the simulation results were compared with the results of the laboratory CDC (charge depleting cycle) test.

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A Hybrid Electric Circuit Battery Model Capturing Dynamic Battery Characteristics

Cited by 11 publications

References 22 publications

Computer modeling of charge-discharge processes in series-connected sections in storage batteries

Computer modeling of charge-discharge processes in series-connected sections in storage batteries

HPPC Test Methodology Using LFP Battery Cell Identification Tests as an Example

PSO-Based Identification of the Li-Ion Battery Cell Parameters

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