I`m new to matlab and I need some help about poles and tf?

2 views (last 30 days)
Mert Cinar
Mert Cinar on 20 Nov 2021
(s+17)/(s^3+10s^2+17s+114)
Sys=tf([1,17],[1,10,17,114])
Pole(sys)
ans =
-9.4756 + 0.0000i
-0.2622 + 3.4586i
-0.2622 - 3.4586i
Root(sys)
ans =
-17
Pzmap(sys)
1) Can you explain open loop stability?
2) How do I know if this system oscillate? Why?

Answers (1)

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 21 Nov 2021
Use root locus plot and step response simulations that will answer to your questions, e.g.:
Sys=tf([1,17],[1,10,17,114]);
pzmap(Sys)
figure('name', 'Root-locus')
rlocus(Sys)
figure('name', 'Step-response')
step(Sys)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!