Project 2 Thermal modeling of battery pack

Title :

For a 10 cell series lithium ion battery model, simulate the thermal effects and compare life cycle performance at various temperatures, charge & discharge rates using MATLAB.

• Lithium ion battery are mostly used in electric vehicles we must know its charge and discharge rates to operate this batterys in efficient manner and with out damage.

Below shows the circuit for 10 cells connected in series

Temperature Sensor

Convective Heat Transfer

Thermal Reference

Temperature Source

Scope for output waveform

PS-Simulink Converter

Solver Configuration

Electrical Reference

Goto block

From Block

Controlled Current Source for Discharge the battery with some constant discharge current

while testing the circuit on different temperature the results are given as follows:

For 300 K

For 350 K

In both it is seen that the soc and temp framed on simulink converter.

When tested further the results showsn were almost the same even in changes made in temperature.

The diagnostic test has shown no sign of any error as well.

As onto the results while running simulation it is seen that as temperature increases SoC reduces which mean the battery will drain at faster rate.