lec09 - Control Design To achieve desired performance, we...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Control Design To achieve desired performance, we need to design appropriate controllers G c for: steady-state error - include free integrators in G c Slide 1 ME 475 Session 9: Intro. to Root Locus Galen King Purdue University transient response - place closed-loop poles in desired regions of the s-plane stability - ensure that all closed-loop poles have negative real part and there is no RHP pole/zero cancellation
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Control Design To achieve proper pole placement, it would be nice to see how the choice of G c directly affects pole location. Slide 2 ME 475 Session 9: Intro. to Root Locus Galen King Purdue University We have such a technique:
Background image of page 2
Motor Position Control Example K θ d (s) θ (s) Controller Motor + - E(s) U(s) ) 1 s ( s 1 + Slide 3 ME 475 Session 9: Intro. to Root Locus Galen King Purdue University We are interested in picking K to give desired transient response. We want to see where the closed-loop poles can be placed as a function of K.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Motor Position Control Example char. eq. = θ θ ) s ( ) s ( d Slide 4 ME 475 Session 9: Intro. to Root Locus Galen King Purdue University
Background image of page 4
Root Locus It would be nice to qualitatively see where the
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 03/31/2011.

Page1 / 20

lec09 - Control Design To achieve desired performance, we...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online