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Energies 2016,9, 563
Figure3.LamandBauerbatterycircuitmodel.
3.3.WijewardanaBatteryModel
Adifferentperception, than the twopreviousmodels, is adopted in thismodel. Theelectrical
components,RS,CS,RL,CL are functionsofSOCandindependentof the temperature.Only theseries
internal resistance resistor is a function of SOCand temperature (RintS(SOC,T)). The temperature
influence isconsideredbyaddingpotential correctionterms,whicharevoltageduetoelectrodefilm
formation (ΔE) andvoltage due to electrolyte electrons transfer formation (ΔVChe). The capacity
fadingeffect ismodeledasanadditionalseriesresistanceRcyc. Thebatteryoutputvoltage iscomputed
bysubtracting thevoltagedropofeachcircuit element fromtheVOCvalue. Figure4demonstrates
Wijewardanabatterymodel.
Figure4.Wijewardanabatterycircuitmodel.
Thebatteryoutputvoltageof thismodel reads [1]:
Vbatt “VOC´ i ` RintS`Rcyc ˘´V1´V2´ΔEpTq´ΔVChepTq (4)
ΔEpTq“p1`CE1ΔTq dVrdT ˇˇˇˇ
T“Tcell ΔT (5)
ΔVChepTq“βwexpp´1{tqΔT` dVChedT ˇˇˇˇ
T“Tcell pCChe`CChe1ΔTqp1`βqΔT (6)
Thevaluesof themodelparametersare listed in theAppendix.
3.4.AssessmentofBatteryModelsQualities
Threedifferenthighlydynamic tomodelLi-ionbatterieshavebeenproposed. Eachmodelhas
its dominant features. Table 2 summaries the qualities of eachmodel. The (+) sign implies that
the corresponded feature is considered in themodel. Whereas, a (++) sign denotes an extensive
considerationtotherelatedfeature. Incontrast, the(-) signmeansthat therelatedfeaturewasassigned
asaconstantor it isnotconsideredatall in themodel. Batterymodel2considersmorefactors than
theothermodels. However, eachmodelmust be evaluatedwith experimental data to investigate
itsaccuracy.
130
Emerging Technologies for Electric and Hybrid Vehicles
- Title
- Emerging Technologies for Electric and Hybrid Vehicles
- Editor
- MDPI
- Location
- Basel
- Date
- 2017
- Language
- English
- License
- CC BY-NC-ND 4.0
- ISBN
- 978-3-03897-191-7
- Size
- 17.0 x 24.4 cm
- Pages
- 376
- Keywords
- electric vehicle, plug-in hybrid electric vehicle (PHEV), energy sources, energy management strategy, energy-storage system, charging technologies, control algorithms, battery, operating scenario, wireless power transfer (WPT)
- Category
- Technik