Filter
Top Products
358 Chapter 6. Function Reference
-1.0000e+01 0.0000e+00 1.0000e+01 1.0000
# Now consider the system with an output multiplicative
# perturbation (of 10%)
W = consys(0.1)
G = daug(W,1,1)*consys([0,0,1;1,0,1;-1,1,-1])*daug(1,1,P)
# The nominal system is constructed by closing the
# upper loop with 0. Any thing else is a perturbed
# system.
Gnom = starp(0,G)
Gpert = starp(-1,G)
# Now examine the closed loop affects for the PI
# controller.
rifd(starp(Gnom,KpInt)) # same as before
Poles:
real imaginary frequency damping
(rad/sec) ratio
-5.5000e+00 -8.3516e+00 1.0000e+01 0.5500
-5.5000e+00 8.3516e+00 1.0000e+01 0.5500
Zeros:
real imaginary frequency damping
(rad/sec) ratio
-1.0000e+01 0.0000e+00 1.0000e+01 1.0000
rifd(starp(Gpert,KpInt)) # perturbation moves the poles.