a Robust Control Problem

I have a robust control problem. I have a system with parametric uncertainty. I made its generalized plant with its uncertainty and performance weighting functions by sysic command in matlab mu toolbox. But D matrix in the generalized plant becomes zero so I couldn't use "hinfsyn" or "dkit" for designing controller. What's the solution? Any help would be appreciated .

Reply to
Loading thread data ...

Dnia Mon, 15 Jan 2007 08:32:33 +0100, napisa³:

It's probably well known numeric property of algorithm. Look at your weighting functions. If there is 1/s (in Performance function) make it 1/(s+0.00001), if there is improperness in revers Wi than make it proper. This solution is described more precisely in robust toolbox datasheet somewhere here

formatting link

Reply to

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.