How to store and retrieve value in simulink

Hi I'm Rofiq

I'm doing project in simulink which doing battery simulation with equation for example x(k+1)=x(k)+P(k) where x(k+1) is the energy stored in battery at time k+1 that is equal to energy stored in battery at time k plus/minus amount energy that charge/discharge to or from battery at time k

What block I should use to build above simulation, I need some block that can store my input value at time k (charging phenomena) and then use/retrieve it at another time k+10 (discharging phenomena). This block/variable act like battery which can inform how much energy stored at time instance and also increase/ decrease over sample time

Thank you for the help

Answer 1

[Azzi Abdelmalek]

You can use unit delay block

Answer 2

[lokesh kumar]

Tapped Delay block could help you on this. It stores all previous values of how much delay you set in the block...It will store it in a vector format and at last you can access it altogether at once.

Answer 3

[ahmad rofiq]

Ok thank you for the help

Answer 4

[ahmad rofiq]

Sorry but with unit delay it just like shift the input, it cannot sum all of value that happen from time k until k+10

any suggestion?

Answer 5

[Walter Roberson]

Your x is effectively an integrator applied to P so use an integrator block.

Answer 6

[Purushottama Rao]

You can use integer delay block.