Project 2 Thermal modeling of battery pack

Ans:- 10 lithium ion cell are connected in with combination of three packs the 1st pack consist of 9 cells with 2nd pack consist of 1 cell which is set to design as a fault for study purpose to observe temperature change with the 3rd pack consist of 9 cell in series.

The heat transfer is observed between the battery pack by conduction and convention block which are mode of heat trasfer. This battery pack is connected to AC current source to observe cyclic charge and discharge life cycle. Current sensor is also added between battery pack and current source to cal SOC of battery.

Subsystem

This consist of thermal model and lithium cell 1RC block which calculate the temperature and thermal effect and overall calcukate the battery pack. the voltage sensore block represent an ideal voltage sensor this is a device that converts the voltage between electrical connnection into physical connection

Lithium Cell 1RC

This block consist of capacitor value table which depend upon an external physical signal SOC and T and value of capacity is varying with time. Voltage value implements the cell main branch voltage source and determines value for capacity and SOC.

Battery parameter Configuration

Thermal Elements

Convection- The heat transfer takes place between the two objects using fluidic material.

Conduction- The heat transfer takes place between the two objects using same material.

Result:

Cell Temperature

SOC