# ELE 302 Lecture Notes - Lecture 32: Step Response, Damping Ratio, Pid Controller

## Document Summary

8 d 2 n d 2 n 8 2 0. 7 12. 25 8 9. 15 the closed loop transfer function will be then: 0. 47 the system type is zero, as 0. 9. 135 open s2 (8 d )s 15 s2 17. 15s 15 and the already known error: 0. 1 ; % 10% lim lim 135 135 9. The remaining error constants and errors can be written by inspection, since we know that the system type is zero, or they can be calculated from their definitions: lim lim . 1 lim lim . When disturbance is 0, we have to use the superposition theorem to calculate the errors. The output signal is: 259 | p a g e: 1, 0. 5. To find yss and the resulting steady state error, apply the final value. Theorem in equation 1 2: y lim sy (s) lim y(t) lim s.