MATLAB MODEL PREDICTIVE CONTROL TOOLBOX - S Spécifications télécharger pdf (Page 35)

Linearize Simulink Models

2-23

For example, the following code specifies the coolant temperature as 305 K and initial

guess values of the C_A and T_K states before calculating the steady-state operating

point:

opspec = operspec('CSTR_OpenLoop');

opspec.States(1).x = 1;

opspec.States(2).x = 400;

opspec.Inputs(1).Known = true;

opspec.Inputs(1).u = 305;

op2 = findop('CSTR_OpenLoop',opspec);

Operating Point Search Report:

---------------------------------

Operating Report for the Model CSTR_OpenLoop.

(Time-Varying Components Evaluated at time t=0)

Operating point specifications were successfully met.

States:

----------

(1.) CSTR_OpenLoop/CSTR/C_A

x: 1.78 dx: -8.88e-15 (0)

(2.) CSTR_OpenLoop/CSTR/T_K

x: 377 dx: 1.14e-13 (0)

Inputs:

----------

(1.) CSTR_OpenLoop/Coolant Temperature

u: 305

Outputs: None

----------

Specify Linearization Inputs and Outputs

If the linearization input and output signals are already defined in the model, as in

CSTR_OpenLoop, then use the following to obtain the signal set.

io = getlinio('CSTR_OpenLoop');

Otherwise, specify the input and output signals as shown here.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 165 166

Pas de commentaire

MATLAB MODEL PREDICTIVE CONTROL TOOLBOX - S Spécifications Page 35