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Table 1 Notation

From: Tractable lithium-ion storage models for optimizing energy systems

Name Description Unit
P(k) Power applied to battery in time slot k W
I(k) Current estimate for time slot k A
V(k) Battery voltage estimate for time slot k V
b(k) Battery energy content estimate at the end of time slot k Wh
a1(a2) Minimum (maximum) cell energy content Wh
αc(αd) Charge (discharge) current limits per unit of storage A/Wh
ηc(ηd) Charge (discharge) inefficiency  
M Voltage function that uses energy content and current as input V
n Number of cells that compose the battery  
Ric(Rid) Internal cell impedance during charging (discharging) Ω
T u Time slot duration h