state space of computation for combination of two plants

I have two plants and I know the state space representation of it. how can i obtain the state space parameter for combination of two plants if they are in series

[Ap,Bp,Cp,Dp]=ssdata(P);

[Av,Bv,Cv,Dv]=ssdata(Wv);

if both of them are in series how can the state space parameter be computed

Answer 1

[Star Strider]

Multiply them, or use the series function. The Control System Toolbox does everything else.

Example —

A1 = randi(9,2)
B1 = randi(9,2,1)
C1 = randi(9,1,2)
D1 = 0

A2 = randi(9,2)
B2 = randi(9,2,1)
C2 = randi(9,1,2)
D2 = 0

C = ss(A1,B1,C1,D1) * ss(A2,B2,C2,D2)               % Series Connection

The ‘C’ variable now has the complete series representation of the two models.