Project 2 Thermal modeling of battery pack

Simulink Model-

Circuit construction and working:

In this ckt we use li-ion cell 1 to 10, temperature sensors, ambient temp block, state of charge estimation, scope, charge discharge profile given to ckt, from and goto block.

Results:

1) Results at 300 k i.e 26.85 degree celcius

2) Results at 310k i.e 36.85 degree celsius

3) results at 324k i.e 50.86 degree

Result explanation-

For a cell series lithium ion battery model we simulate the thermal effects and compare life cycle performance at various temperature, charge and discharge rates using Matlab. results are as follows

1-4 cells are normal cell 5th cell is faulty 6-10 cell is normal cell as we are simulating thermal effects on we give cyclic charge /discharge profile to circuit waveform you cam see above results all conditions it is same but when ckt is run on this drive cycle profile as 5th cell was faulty it will show temperature rise high than any other cell and the life cell get reduced and cell even can get damage.

So as we give temp of results at 300k ie 26.85 the 1-4 and 6-10 cell temp is near to 316k

but 5th faulty cell temp goes to 330k ie 56.85 deegre celcius and the drive cycle is shown which is cyclic charge/ discharge drive cycle.

in condition two we give temp 310 k ie 36.85 degree celcius and 1-4 and 6-10 cell temp is near to326 k but 5th faulty cell temp goes to 340k ie 66.85 degree celcius and the drive cycle is shown which is cyclic charge/ discharge drive cycle.

In condition two we give temp 324k ie 50.85 degree celcius and 1-4 and 6-10 cell temp near to 340k but 5th faulty cell goes to 354k.