Contents
MATRIXx Xmath Robust Control Module vi ni.com
Chapter 3
System Evaluation
Singular Value Bode Plots.............................................................................................3-1
L Infinity Norm (linfnorm)............................................................................................3-3
linfnorm() .......................................................................................................3-4
Singular Value Bode Plots of Subsystems....................................................................3-7
perfplots() .......................................................................................................3-7
clsys() .............................................................................................................3-10
Chapter 4
Controller Synthesis
H-Infinity Control Synthesis.........................................................................................4-1
Problem Definition..........................................................................................4-1
Extended Transfer Matrix...............................................................................4-2
Building the Plant Model................................................................................4-3
Weight Selection.............................................................................................4-5
Restrictions on the Extended Plant.................................................................4-7
hinfcontr() ......................................................................................................4-8
singriccati() .................................................................................................... 4-13
Linear-Quadratic-Gaussian Control Synthesis..............................................................4-14
LQG Frequency Shaping................................................................................4-14
fsregu() ...........................................................................................................4-14
fsesti( ).............................................................................................................4-16
fslqgcomp() ....................................................................................................4-17
Frequency-Shaped Control Design Commands..............................................4-17
Loop Transfer Recovery (lqgltr) ...................................................................................4-22
lqgltr() ............................................................................................................4-23
Appendix A
Bibliography
Appendix B
Technical Support and Professional Services
Index