Simulink Control Design™ - MathWorks

Open the Simulink model.

sys = 'watertank';

open_system(sys)

Vary parameters A and b within 10% of their nominal values. Specify three values for A

and four values for b, creating a 3-by-4 value grid for each parameter.

[A_grid,b_grid] = ndgrid(linspace(0.9*A,1.1*A,3),...

linspace(0.9*b,1.1*b,4));

Create a parameter structure array, specifying the name and grid points for each

parameter.

params(1).Name = 'A';

params(1).Value = A_grid;

params(2).Name = 'b';

params(2).Value = b_grid;

Create a default operating point specification for the model, which specifies that both

model states are unknown and must be at steady state in the trimmed operating point.

opspec = operspec(sys)

Operating point specification for the Model watertank.

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

States:

----------

1 Steady-State Operating Points