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Wang
Posts:
4
Registered:
8/13/10


Urgent! Two questions about "sconnect" commnad
Posted:
Feb 16, 2013 3:26 AM


The following are adapted from my script whish is used for building up a contorller.  ............. inputs = 'r; d' ; outputs = 'Weinter; Wt' ; Kin = 'C: Ms;G(3)' ; [P, R] = sconnect(inputs, outputs, Kin, ... 'Ms: e=rG(3)', ms, 'G: d;C', wtg, 'Weinter: Ms', we_inter, 'Wt: G(1)', wt) ;
After the script run, the following output showed in the command window:
Warning: affine PD model converted to polytopic Warning: badly conditioned computations due to algebraic loop
and fi I check the info of plant P, I got the followng info. Polytopic model with 3 vertex systems Each system has 6 state(s), 3 input(s), and 4 output(s)
My questions are: 1) What does the warning of "badly conditioned computations due to algebraic loop" mean and imply?
2) Why the input and output are 3 and 4 instead? I've thought they are supposed to be 2 and 2 respectively.
I'ts urgent for me to finish the project. Great thanks for the help!



