Wrong dterm formula ?
Posted: Fri Jan 02, 2015 9:28 am
I optimalized my PID koeficients and everything work well, only in temperature ramp mode the regulation is very slow. I think that is because the formula "dTerm = dGain * (curr_temp - previous_temp)" is used. The better formula is "dTerm = dGain * (curr_err - previous_err)". I thing that with this formula the PID regulator would work better.
Why the formula "dTerm = dGain * (curr_temp - previous_temp)" is used instead of standard "dTerm = dGain * (curr_err - previous_err)"?
Why the formula "dTerm = dGain * (curr_temp - previous_temp)" is used instead of standard "dTerm = dGain * (curr_err - previous_err)"?