Question: Consider a feedback control system with a PID controller: R + Kp + K S C(s) + KDS + + D 1 S +3.65
Consider a feedback control system with a PID controller: R + Kp + K S C(s) + KDS + + D 1 S +3.65 +9 P(s) Y where R, D, and Yare reference, disturbance, and output respectively. C(s) and P(s) are transfer functions of the controller and plant respectively. A. Please give the expressions of the (two) closed-loop transfer functions for the responses from R to Y and from D to Y. They should have the same denominator (bottom) polynomial (a.k.a., the closed-loop characteristic polynomial). B. Assume that it's desirable to have the closed-loop poles located at p =-10, P3 = -2 j23 for a good balance of response and stability. In other words, it is desirable to have the closed-loop characteristic polynomial equal to (s-P) (s - P) (SP3). What should the P, I, and D gains equal to?
Step by Step Solution
There are 3 Steps involved in it
The closedloop transfer functions for the responses from r to y and from d to y are From r to y YsRs Kp s2 KI Kd s s Kp Kds3 36 Kd s2 9 Kp KI s Kp Kd From d to y YsDs Kds3 36 Kd s2 9 Kp KI s Kp Kd Bot... View full answer
Get step-by-step solutions from verified subject matter experts
