Simulink Control Design™ - MathWorks

Batch Linearization to Obtain Multiple Transfer

Functions for Varied Parameter Values

This example shows how to use the slLinearizer interface to batch linearize a

Simulink model. You vary model parameter values and obtain multiple open- and closed-

loop transfer functions from the model.

You can perform the same analysis using the linearize command. However, when you

want to obtain multiple open- and closed-loop transfer functions, especially for a large-

scale model, slLinearizer can be more efficient.

Cascaded Loop Model

The scdcascade model contains a pair of cascaded feedback control loops. Each loop

includes a PI controller. The plant models, G1 (outer loop) and G2 (inner loop), are LTI

models.

Use the slLinearizer interface to initially analyze the inner-loop dynamics. Then,

analyze the outer-loop dynamics.

mdl = 'scdcascade';

open_system(mdl);

Create slLinearizer Interface for scdcascade

sllin = slLinearizer(mdl)

3 Batch Linearization