how can calculate the rise time and settling time in simulink model?

How can calculate the rise time and settling time in simulink model with out m-file? it is useful to find the system response parameter during simulink simulation. it is required for my research work.

kindly,guide me for it.

Thanks

Rakesh Patel

Answer 1

[Fangjun Jiang]

What I suggest is to log the data and then run stepinfo(). You can add this one line command to the StopFcn callback of the model so it will be completely automatic.

[Asaf]

Can you explain a little bit more? How can I log the data? What is the StopFcn callback?

Thank you!

[Kaustubha Govind]

Asaf: Please see Exporting Simulation Data and Create Model Callbacks.

[Joshua]

Hi, I have exported the data to Workspace from the scope, but I am unable to proceed with finding the rise time and settling time from there. Can you please guide me with an example? Any help would be greatly appreciated.

Answer 2

[durga devi]

>> s=tf('s'); >> sys=(1/(s+1)); >> s = stepinfo(sys,'RiseTimeLimits',[0.05,0.95])

s =

        RiseTime: 2.9445
    SettlingTime: 3.9124
     SettlingMin: 0.9523
     SettlingMax: 0.9996
       Overshoot: 0
      Undershoot: 0
            Peak: 0.9996
        PeakTime: 7.8163

Answer 3

[durga devi]

>> s=tf('s'); >> sys=(1/(s+1)); >> s = stepinfo(sys,'RiseTimeLimits',[0.05,0.95])

s =

        RiseTime: 2.9445
    SettlingTime: 3.9124
     SettlingMin: 0.9523
     SettlingMax: 0.9996
       Overshoot: 0
      Undershoot: 0
            Peak: 0.9996
        PeakTime: 7.8163

Answer 4

[durga devi]

>> s=tf('s'); >> sys=(1/(s+1)); >> s = stepinfo(sys,'RiseTimeLimits',[0.05,0.95])

s =

        RiseTime: 2.9445
    SettlingTime: 3.9124
     SettlingMin: 0.9523
     SettlingMax: 0.9996
       Overshoot: 0
      Undershoot: 0
            Peak: 0.9996
        PeakTime: 7.8163