Recent content by Maxim Nol

Thank you very much, that helped. I wish I hadn't lost so much time trying to design a PID. Just one question: does this look like a valid desired C.E. to you? D=(s+p)^5 (s^2+2*omega*zeta+omega^2). I set pole 'p'=10*omega so that desired natural frequency dominated system dynamics...

Homework Statement Hello everyone! To simplify, I have a system whose transfer function looks like this: G = (s^2-1) / (s^4-s^2-1) It's unstable and I have to find a way to stabilize it using PID controller and/or lead/lag compensators. Homework EquationsThe Attempt at a Solution So far I...