Thread Subject: Time extraction

I have two variables U1 and U2. At some point these two variable difference becomes zero. I run my simulation 'under' 'inf' condition in simulink. I want to know how I can extract the time when the difference was zero while the simulation still continues. As I need this time to be substituted in my calculation.

lets say for example at time 20 sec's the U1-U2=0 but my simulation still continues and passes 20,21,22,23,,,,,......and so on but I need that 20 sec's and let the simulation continue. I have to keep in mind that U1 and U2 are variables so at any time the difference between them will get 'zero'.

Any suggestion will be apprciciated.

    Thanking you,

Sandhi

Using a compare to zero block will help you test when u1-u2=0, and you
can use the clock block to access the time.

-James

Prashant Sandhi wrote:
> I have two variables U1 and U2. At some point these two variable
> difference becomes zero. I run my simulation 'under' 'inf' condition in
> simulink. I want to know how I can extract the time when the difference
> was zero while the simulation still continues. As I need this time to be
> substituted in my calculation.
>
> lets say for example at time 20 sec's the U1-U2=0 but my simulation
> still continues and passes 20,21,22,23,,,,,......and so on but I need
> that 20 sec's and let the simulation continue. I have to keep in mind
> that U1 and U2 are variables so at any time the difference between them
> will get 'zero'.
>
> Any suggestion will be apprciciated.
>
> Thanking you,
>
> Sandhi