Extract values at a particular time of a simulation to use in the same simulation

1 view (last 30 days)
Im trying to create a block diagram that estimates de inductance of a RL branch. For that I inyect a step signal (a voltage) and by observing at what instance the current arrives at the 63% of the final current we can determine the indutance . So basically I need to find a mechanism that allows me to find the value of from the simulation.
Any idea on how to do that?

Accepted Answer

Jon on 22 Jun 2022
You can use the "Stop Simulation" block for this purpose. This block stops the simulation when its input becomes true (non-zer0)
Assuming you know in advance the final current value, you can use a relational operator (>=) block to test if the signal is greater than 0.63*finalCurrent and feed this to the stop block
  1 Comment
Jon on 22 Jun 2022
For example, you could do something like this, where the Vin is a unit step (1 volt) and the values for L and R are assigned in the base workspace (assign them in a script or on the command line before running)

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!