I have a zero at the origin of my root locus plot. I understand that I need integral control to have zero steady-state error. I have 2 questions about this.
1. When I add integral control like this, Kp (1/(Ti*s)) where Ti is from Z-N first method and Kp=1, I get a pole at the origin. I...
Thank you, and I may end up using this approach. In the mean time can anyone explain why I get a linear function when the expected result is an "s-shaped" curve?
I little more background.
My open loop system is a controller * Plant with a step input and unity feedback. My advisor suggested I...
Control Theory and PID tuning
I've been working to find a PID controller for the following TF
As
TF = --------------------------
B1s^3 + B2s^2 + B3s + B
The "s" term in the numerator is giving a great deal of grief. I've been...
not sure why my earlier post never showed, but I'll try again.
I'm doing some work to control a pump that's the input to a pneumatic system. I developed a transfer function that defines the plant as the output pressure divided by the input pressure. I also developed a controller: PID&I...