Project 2

Aim :

Using MATLAB or simulink and the drive cycle from the attached excel sheet we need to find the following

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

Answer :

1. The max heat generation of the battery :

Question :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