- #1
alagez
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Homework Statement
i meet problem below in control system :
G(s)= K(s+4)/s(s+1)(s+2) its a unity feedback system.
1. determine the range of K that keeps the system stable.
2. determine the range of K that makes the system oscillate
3. calculate the frequency of oscillation when the system oscillate
Homework Equations
characteristic equation for stability Routh Hurwitz Creation
The Attempt at a Solution
i have solved the first by determine the range of K by using Routh Hurwitz Table. But, i m very confused when it comes to find the range of K that makes system oscillate. even, i don't understand the term for oscillate. conclusion number 2 and 3 is very confusing.