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Unformatted text preview: ith s-domain.
s- Steady state response
Steady state error
Steady 2008/09 MECH466 : Automatic Control 3 2008/09 MECH466 : Automatic Control (Done) 4 1 First-order system DC motor example (cont’d) A standard form of the first-order system:
first- If La<<Ra, we can obtain a 1st-order system
1st- DC motor example
Remember that TF from motor voltage to
motor speed is 1st-oder (Lab #3)
1stmotor position is 2nd-order (Lab #4)
2nd2008/09 MECH466 : Automatic Control 5 2008/09 Step response for 1st-order system
Input a unit step function to a first-order system.
firstThen, what is the output?
u(t) MECH466 : Automatic Control 6 Meaning of K and T
K : Gain
K=1,T=1 Final (steady-state) value
Final (steady- 1 y(t)
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This document was uploaded on 03/05/2014 for the course MECH 466 at The University of British Columbia.
- Winter '09