The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » Software » comp.soft-sys.matlab

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Urgent! A question about the "ltisys" command
Replies: 1   Last Post: Feb 1, 2013 8:50 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]

Posts: 4
Registered: 8/13/10
Urgent! A question about the "ltisys" command
Posted: Jan 31, 2013 12:38 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

As we all know that command "ltisys" normally take 5 parameters to form a SYSTEM matrix which could be used by command "psys"

However, from the explanation described in LMI Control Toolbox, the matrices A, B, C, D are intended for the plant as

Edx/dt= A*x(t) + B*u(t)
y(t) = C*(x(t) + D(u(t)

In the process of building up a gain scheduling LPV controller, the plant is normally described as

P(.,p) defined as:
x = A(p)*x + B1(p)*w + B2*u
z = C1(p)*x + D11(p)*w + D12*u
y = C2*x + D21*w + D22*u

In the case, how can form the matrices B, C and D?

By the way, the deom "misldem.m" which is supposed to provided as a demo is en empty m file in my computer. (it is located in X:\Program Files\MATLAB\R2011b\toolbox\robust\rctobsolete\lmi\ja) . Thus, I cannot get any more detail apart from the simple lines in the Toolbox User Guide.

I't urget cause I'm building up a controller for wind turbine.

Greate thanks!

my email is

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.