Steady State Errors and Stability Analysis Flashcards
1
Q
What do the errors of the system depend on?
A
The system itself and the inputs used by the system
2
Q
What is the formula of the error of a negative feedback system?
R(s) is the input
Y(s) is the output
E(s) is the error
G(s) is the initial transfer function
H(s) is the negative feedback function
A
E(s) = R(s) / (1 + G(s)H(s))
3
Q
What is the steady state error of a negative feedback system?
A
lim (sR(s)) / (1 + G(s)H(s)) where s tends to 0
4
Q
What is another name for the Step Error Constant?
A
Position Constant
5
Q
What is the Steady State Error to a Step Input?
A
lim 1 / (1 + G(s)H(s)) as s tends to 0
6
Q
What is the steady state error of a ramp input?
A
lim 1/(sG(s)H(s)) as s tends to 0
7
Q
A
