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Modeling of Storage Systems

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Optimization of Photovoltaic Power Systems

Part of the book series: Green Energy and Technology ((GREEN))

Abstract

Battery is generally needed when PV array cannot be functional as at night or on a cloudy day.

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Abbreviations

C :

Capacity according to Peukert, at a one-ampere discharge rate (A·h)

C 0 :

Capacitance of the parallel plates

C1 and C2:

Capacities of the battery at different discharge-rate states

C 10 :

10-h capacity

D c and D d :

Diodes which are in series with R c and R d , respectively

E b :

Open-circuit voltage of the battery charged

E m :

Main branch electromotive force of the battery

E t :

Battery terminal voltage

I batt :

Discharge current

\( k_{{E_{b}}} \) and k R :

Coefficients that can be calculated experimentally

K i :

Polarization resistance

n :

Peukert constant

R 0 :

Initial battery internal resistance calculated when the battery is full charged

R batt :

Internal (ohmic) resistance of the battery

R c and R d :

Internal resistances associated respectively with the charging and discharging process of the battery

R 0 :

Nonlinear resistance contributed by the contact resistance of plate to electrolyte

Q :

Accumulated ampere-hours divided by full battery capacity

SOC:

State of charge

t i :

Time to discharge at current I

U batt :

Terminal voltage of the battery

V oc :

Open-circuit voltage of a battery cell when fully charged

Z m :

Internal impedance of the battery

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Correspondence to Djamila Rekioua .

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© 2012 Springer-Verlag London Limited

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Rekioua, D., Matagne, E. (2012). Modeling of Storage Systems. In: Optimization of Photovoltaic Power Systems. Green Energy and Technology. Springer, London. https://doi.org/10.1007/978-1-4471-2403-0_5

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  • DOI: https://doi.org/10.1007/978-1-4471-2403-0_5

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  • Publisher Name: Springer, London

  • Print ISBN: 978-1-4471-2348-4

  • Online ISBN: 978-1-4471-2403-0

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