Adding a dela y of 01 the modified rootlocus plot

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Figure 17: Root­Locus for P­Controller (the dot at k c = -1.2 ). Next, integral act ion is introduced. In the case of the PI controller, different plots are produced for different controller parameters and are given in Figures 18 to 20. Figure 18: Root­Locus for PI controller for t I = 1 (the dot at k c = -1.2 ). Figure 19: Root­Locus for PI controller for t I = 0.2 (the dot at k c = -1.2 ) Figure 20: Root­Locus for PI controller for t I = 1 (the dot at k c = -20 ). The fo llowing can be concluded: · The system is always stable for any value of the controller parameters both for P and PI controllers as long as the controller gain is negat ive (reverse action) · The addit io n o f integral act ion increases the order of the system and introduces a pole at the origin · For P­controller the poles are always real while for PI contro...
View Full Document

This note was uploaded on 01/12/2014 for the course CHE 4198 taught by Professor Hjortso,m during the Fall '08 term at LSU.

Ask a homework question - tutors are online