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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© 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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