Project 2 Thermal modeling of battery pack
Explanation :
- Here we are connecting 10 cells in series and checking its performance by changing temperature , charging and discharging.
Blocks used :
Table battery :
- This block models a battery on tabulated characteristics as function of state of charge and optional temperature .
Convective Heat transfer :
- It is used to provide convection heat transfer .
PS Constant :
- It is used to give constant value of current to the constant current source block
Constant current source :
This block is used to give current to the battery
Temperature Senser :
It is used to sense the temperature of the battery .
Temperature source :
It represent an ideal energy source in a thermal network that can b maintained a constant absolute temperature at the port.
- PS-Simulink coverter
- Scope
- Electrical referance
- Thermal referance
Below is the diagram of the simulink model.
Outputs :
1 ) Different teperature values :
a ) T = 293.15 K
Soc and temperature graph :
- Battery is discharging as SOC level decreases .
- Temperature decreases
b ) here we have given temperature = 295 k
Soc and temperature graph :
- Battery Soc level decreases and temperature also decreases
c ) Here we have given temperature = 310 k
SOC and temperature graph :
Here SOC of battery is decreasing and temperature is increasing.
2 ) Discharging process :
a) We have given current as 4 A
From the graph we can say that ,soc level of battery id decrasing and temperature is also decreasing
b) We have given current as 5 A
From thegraph we can see that SOC level decrease more than above case and temperature also decrease
c) We have given current as 6 A
From the graph we can say that ;
As the current value is increased the SOC level is also decreasing fast and temperature also decreases
3 ) Discharging process :
a) We have given current as 4 A
From the graph we can say that ;
As we are charging the battery ,its SOC level increases and temerature decreases very slowly.
b) We have given current as 5 A
From the graph we can say that;
the battery is charging fast because we have increased the current and temperature also decreases .
c) We have given current as 6 A
From the graph we can say that :
the battry is charging fast because of increasing in current and temperature also decreases .
Below is the link of the simulink model ;
https://drive.google.com/file/d/1tNTi-MMaPtk6vqgfwSyiXeZJcBfO3-0i/view?usp=sharing