Project 1

1. Design a battery pack for a car roughly 150 Kw with 120 V. Use 3500 mAh 3.6V nominal NMC chemistry cell.

a. Design the battery pack configuration.

Answer :

Given data :

Power(P)=150 Kw

Voltage(V)=120 V

Nominal Current(I)=3.5A

Nominal Voltage(V)=3.6 V

To find the Number of cell in series = Rated Voltage / Nominal Voltage

Number of cell in Series = 120 / 3.6

Number of cell in Series = 33.33 =34

Number of cell in Parallel = Continous Current / Nominal Current

To find the Continous Current = ?

P= VI

I=P/V

I=150/120 = 1.25 A

Number of cell in Parallel = Continous Current / Nominal Current

Number of cell in Parallel = 1.25/3.5

Number of cell in Parallel = 0.35=1

b. Draw the BMS topology for this battery pack.

Master Topology : Battery pack which more 18 number cell in series were used in mater slave topology.

Working: when serieslly convert energy storage battery cent to the AFE(slave-1) first connected ES cell data sent to the slave-2 totally connected first and second slaves data trafer to MCU

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2. Build a 3S2P battery pack configuration with generic battery block using Matlab/Simulink.

Answer :