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pid heater control
Hi all,
I'm implementing a PID control algorithm on a heater using microcontroller. I intend to use Ziegler-Nichols tuning method, which needs a clear Step-response graph for determining the PID equation parameters.
my question is:
do i need to apply a 100% power to the heater and record system response until it reaches a steady-state output? i.e., does the Step input has to be a 100% power? or it can be of any value, just an instant change in the heater power input?
please advise as this is my first time to implement a PID control method.
Thank you in advance for your time.
Yours,
Hi all,
I'm implementing a PID control algorithm on a heater using microcontroller. I intend to use Ziegler-Nichols tuning method, which needs a clear Step-response graph for determining the PID equation parameters.
my question is:
do i need to apply a 100% power to the heater and record system response until it reaches a steady-state output? i.e., does the Step input has to be a 100% power? or it can be of any value, just an instant change in the heater power input?
please advise as this is my first time to implement a PID control method.
Thank you in advance for your time.
Yours,