How to implement Ramp/Soak to the PID block in Simulink ?

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milad chalipa
milad chalipa 2017-10-28
评论： KL 2017-10-28
I'm working on a heat treatment furnace which has to be the ramp and soak function, for example heat the muffle with 60 degree per minute,heat to the 400 degrees. Is there a way to implement ramp and soak to my pid block in Simulink ?

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回答（1 个）

KL
KL 2017-10-28
Take the ramp block on simulink and use it as your setpoint signal.
https://de.mathworks.com/help/simulink/slref/ramp.html
Adjust your slope based on your step size, set-point and rate of temperature increase. Similarly to soak, use a negative slope. Is this what you mean?
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milad chalipa
milad chalipa 2017-10-28
The ramp function is reasonable to me, but the soak is not, as I learned before, the soak function is about to make the output signal be steady-state ? how to make the output steady with negative slope ?
KL
KL 2017-10-28
Probably you want something like a step signal signalling the actual setpoint of the temperature and use it to either ramp up or ramp down (in case this change in set-point is less than the current value, hence soak).

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