Simulink® Control Design™

Linearization Quick Start

To quickly get started linearizing models, follow these steps. The documentation gives additional information for each step in the process and describes the advanced functionality of the product.

1. Create or open a Simulink model and decide which portion of the model you need to linearize. See Creating or Opening a Simulink Model for more information.

2. Open a linearization task for this model in the Control and Estimation Tools Manager by selecting Tools > Control Design > Linear Analysis from the model window. See Beginning a New Linearization Task for more information.

3. Select inputs and outputs for the linearized model by inserting linearization points on the model diagram. To do this, right-click a signal line and select Linearization Points, and then select either Input Point or Output Point depending on whether you want the signal to be an input or output for the linearized model. To remove the effect of feedback loops from the linearized model, you can artificially open a loop by right-clicking the signal line and selecting Linearization Points > Open Loop. See Configuring Inputs and Outputs for the Linearized Model for more information.

4. Specify the operating point for the linearized model in the Operating Points node of the Control and Estimation Tools Manager. To compute a steady-state operating point from state specifications, click the Compute Operating Points tab and enter the specifications into the table, then click Compute Operating Points. See Specifying Operating Points for more information and for methods of specifying alternative operating points.

5. Linearize the model by first clicking the Operating Points tab within the Linearization Task node and then selecting the appropriate operating point from the list. To compute the linearized model, click the Linearize Model button. See Linearizing the Model for more information.

6. Analyze the results with the Linearization Result pane and the Linearization Inspector pane within the Model node. Create plots of the results with the Custom Views node. See Viewing Linearization Results for more information.

7. Export the linearized model to the MATLAB workspace by right-clicking the Model node and selecting Export. See Saving and Exporting Your Work, for more information.

Using the Documentation

Compensator Design Quick Start