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MathGroup Archive 2004

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Re: StateFeedbackConnect in Control System Package

  • To: mathgroup at smc.vnet.net
  • Subject: [mg46027] Re: StateFeedbackConnect in Control System Package
  • From: Petr Kujan <kujanp at fel.cvut.cz>
  • Date: Tue, 3 Feb 2004 03:20:57 -0500 (EST)
  • Organization: Czech On Line, a. s.
  • References: <bvla06$66$1@smc.vnet.net>
  • Reply-to: kujanp at fel.cvut.cz
  • Sender: owner-wri-mathgroup at wolfram.com

Scott Guthery wrote:
> Anybody out there using the Control System Package?
>  
> I can't get StateFeedbackConnect[system1, system2] to
> be anything but a do-nothing.
>  
> Cheers, Scott
>  



In Mathematica package Control System Professional 2.
There is no problem with StateFeedbackConnect.

Clear[a,b,r,q];

tfsys=TransferFunction[s,1/((a+s)(b+s))]
(*
Out[1]=
TransferFunction[s, {{1/((a + s)(b + s))}}]
*)

sssys=StateSpace[tfsys]
(*
Out[2]=
StateSpace[{{0,1},{-a b,-a-b}},{{0},{1}},{{1,0}}]
*)

StateFeedbackConnect[sssys,{{q,r}}]
(*
Out[3]=
StateSpace[{{0,1},{-a b-q,-a-b-r}},{{0},{1}},{{1,0}},{{0}}]
*)


   Petr


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