PID block with filter time constant

9 views (last 30 days)
Rick
Rick on 4 Nov 2015
Edited: Rick on 4 Nov 2015
Hello,
I am working on a homework problem
Consider a first-order + dead time process with the following transfer function:
g_p (s)=(k_p e^(-θs))/((τ_p s + 1 ))
Where k_p=10,θ = 1,and τ_p = 1.
Compare the setpoint performances of PID + filter, PID, PI, and PI + time delay tuning rules from Table 9-2 (rows A-D) in Bequette using a unit setpoint change and λ = 10. Plot y and u vs. t for each of the four controllers and comment on the differences between the four controllers.
Hint: depending on the Simulink block you use to represent the controller, you may get an error or a strange result. If you do, discuss this and try using another block.)
I am wondering what the hint is supposed to mean. I know for a PID with filter controller, there will be a time constant for the filter, but with a PID controller block in simulink, there is no "F" input, so I am wondering if there may be another block more appropriate for this purpose.
Thanks

Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!