(A
($3
The block diagram of a motor control 5
Fig. 6P-l7.
(3) Find the natural frequency of the system.
(b) Find the value of the tachometer constant K, so that the damping is critical.
Texas Tech University
Department of Electrical and Computer Engi
Texas Tech University
Department of Electrical and Computer Engineering
ECE3353: Feedback Control Systems
Fall 2013
Assignment # 9; Due: November 14, 2013
ll. Given the unity feedback system of Figure P9.i.
with
K(.\ + 6i
0(3) n (x -l-3)(s i 4)(s 4 7
X s - "5
m *' wig? mr .
K to Exw-t FWM Q
Problem (1 ): Theposition control 3
ystem for a spacecraft platform is governed
by the following equatiOns:
d2. tip
at:2 (it + 4P 6
'01 - r M p
(10 _
dt 0.6212
112 = 7111.
The variables involved are as follow