{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

homework6

# homework6 - transfer function is c c D G(s K(1 s = τ If...

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

CHBE470 – Process Dynamics and Control – Fall 2007 Homework Set 6 Assigned: Wednesday, October 22 Due: Wednesday, October 29 Note: Please staple your papers and include your name in the first page Problem 1 : Consider the general closed-loop block diagram with c c G (s) K (1 3 s) = + , f G (s) 1 = , m G (s) 2 = and 2 p G (s) 1 (0.2s 0.4s 1) = + + . Using the Routh-Hurwitz stability criterion, determine the stability of the closed-loop system when Kc=2. Problem 2: Consider the general closed-loop block diagram with c c G (s) K = , f m G (s) G (s) 1 = = and 3 p G (s) 1 (s 1) = + . Find the value of Kc for which the system is on the verge of instability. The controller is then replaced by a PD controller, for which the
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: transfer function is c c D G (s) K (1 s) = + τ . If Kc=10, determine the range of τ D for which the system is stable. Problem 3 : Consider the general closed-loop block diagram with c c G (s) K = , f G (s) 1 = , m G (s) 1 (s 1) = + and 3 p G (s) 1 (s 1) = + . a) Determine the value of Kc above which the system is unstable b) Determine the value of Kc for which two of the roots are on the imaginary axis and determine the values of these imaginary roots....
View Full Document

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern