Week 8 Challenge

SOLUTION:

Aim:To model the energy storage device as ultracapacitor and analyse its operating characteristics according to the power demand by running the model for 598 sec.

Model:

Procedure:

Signal builder block is used as a power demand source.

In the Ultracapacitor subsystem ,current and voltage calculation subsystem and SOC calculation subsystem is

In the charge and voltage calculation subsystem ,the current ,voltage,open circuit voltage and charge calculation subsystem is formed.

Input to the current subsystem is power demand from the signal buider and feedback from the SOC.

Then the SOC calcualtion also done here by using the formula.

The input to OCV subsystem is current.The Open circuit voltage is calculated by using the formula.

The input to voltage subsystem is current and SOC.Voltage is calculated is using the formula,

Charge calculation:

The charge can be calculated byusing the above formula

Voltage Calculation:

SOC calculation:

Here SOC is subtracted from the initial SOC to get the instantaneous SOC.

RESULTS: