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Chapter 3 Building System Connections
Xmath Control Design Module 3-12 ni.com
-1 1
D
0
X0
0
0
State Names
-----------
Input Names
-----------
Input 1
Output Names
------------
Output 1
System is continuous
Algorithm
The system used for the feedback loop, Sys2, is optional. If it is not
specified, a default state-space system is used with
NULL matrices for A
2
,
B
2
, and C
2
and an identity matrix for D
2
so that unity gain feedback is
implemented.
From Figure 3-4 and the state-space definitions of the systems, you derive
the following equations:
x
·
1
= A
1
x
1
Be
1
+
y
1
= C
1
x
1
D
1
e
1
+
x
·
2
= A
2
x
2
B
2
y
1
+
y
2
= C
2
x
2
D
2
y
1
+
e
1
= u
1
y
2
–