Project 2

1. The SOC of the battery at 2 *104second of the battery operation 

answer :

 

blocks used :

1) Battery :

 

• Here the battery block can be found in the director of electrical/specialized power systems/electrical drives/extra sources 
• Here we used default values of the Li-ion battery.

2) Controlled voltage source:

 

3) Bus selector

 

4 Drive cycle:

  

Drive cycle input plot:

 

• This current cycle is given as the input to the model through the drive cycle input block i.e excel file wich is given in the question 
• Here the drive cycle stop time is 2*104 i.e 208sec
• so the simulation run time is 208sec
• Here the output of the drive cycle is given to the current controlled source which is connected to the battery as a load
• so here the battery is dicharged accroding to this siginal given by the data which is excel data input drive cycle data
• Here the power gui block is rquired for any simulation of the simulink model
• It mainly used to store the equivalent simulink circuit which represents the state space model 
• The ouput of a battery is given to the scope through the bus selector the bus selector outputs the battery siginals to the scope

Output results:

 

The above graph gives the results of SOC voltage and current 

Here we operated the soc of battery at 2*104 

And we can also see that how the soc of the battery changes it mainly decreases from the 100 to 99 and voltage aslo dcreses

# maximum heat 

1. The max heat generation of the battery :-

Answer:- 

-> The maximum current in the drive cycle is -0.896 at 2 minutes(120 seconds)

--> maximum heat generated =I^2Rt=(-0.896^2)*2*120=192.676 milli Joule

-->The total heat generated =Joule heat+Entropic heat

     =192.676 milli+2(192.676 milli)

     =74.248 milli joules.