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Topic: control system
Replies: 5   Last Post: Sep 11, 2013 7:31 PM

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 ROHIT MISHRA Posts: 3 Registered: 9/9/13
Re: control system
Posted: Sep 11, 2013 11:20 AM

"Nasser M. Abbasi" wrote in message <l0nlbl\$ps2\$1@speranza.aioe.org>...
> On 9/10/2013 9:14 AM, ROHIT MISHRA wrote:
> > "Nasser M. Abbasi" wrote in message <l0mfv5\$9g9\$1@speranza.aioe.org>...
> >> On 9/9/2013 10:09 AM, ROHIT MISHRA wrote:
> >>> A=[0 1;2 3] ,B=[0 ; 1] and initial condition is x0=[1;0]
> >>> how to find the forced response of the above system using the above matrix in state space analysis of control system.
> >>> plz tell me how to do this problem.
> >>>

> >>
> >> may be
> >>
> >> ----------------------------
> >> clear all
> >> A = [0 1;2 3]; B = [0 ; 1]; x0 = [1;0];
> >> sys = ss(A,B,[0 1],[]);
> >> initial(sys,x0,16.4)
> >> ----------------------

>
>

> > i want value of X1(t) and x2(t) not the plot....your help was appreciated
> >

>
> Then why not simply solve the differential equation?
>
> You have the differential equation right there? You defined it.
> use ode45 if all what you want is the solution.
>
> I have not played with control systems for sometime. Did you
> try to read the documentation to find if there is away to
> find x(t) direclty from state space?
>
> --Nasser

> i hav solved the problem by solving the entire equation of x(t) which involves integral and non integral terms.since the length of the solution became huge so i was trying to find a shorter way...i hav seen the ode45 command but didnt used it ...i will definitely try to solve the state equation using it...thanks 4 d help.......................ROHIT

Date Subject Author
9/9/13 ROHIT MISHRA
9/10/13 Nasser Abbasi
9/10/13 ROHIT MISHRA
9/10/13 Nasser Abbasi
9/11/13 ROHIT MISHRA
9/11/13 Nasser Abbasi