Nonlinear Control Design Blockset

A Control Design Example

The Nonlinear Control Design Blockset uses time domain constraint bounds to represent lower and upper bounds on response signals. Constraint bounds can be stretched, moved, split, or opened in a variety of ways, which are explained here and in Reference. This section and the next section guide you through two examples of how you might perform control design and system identification using the Nonlinear Control Design Blockset. In this section, we want to control a second order SISO system via integral action as shown below.

Specifically, the integral gain (Kint) should ensure that the closed loop system meets or exceeds the following performance specifications when we excite the system with a unit step input:

• A maximum 10 percent overshoot
• A maximum 10 second rise time
• A maximum 30 second settling time

Because of the actuator limits and system transport delay, standard linear control design techniques may not yield reliable results.

Quick Start

Nonlinear Control Design Blockset Startup