Simulink Control Design™ - MathWorks

Find Operating Points at Simulation Snapshots

You can find a steady-state operating point using a model simulation. The resulting

operating point consists of the state values and model input levels at a specified

simulation snapshot time.

To use simulation-based operating point computation, first configure your model initial

conditions such that the model converges to an equilibrium point. You can then simulate

your model and create operating points interactively using the Steady State Manager or

Linear Analysis Tool. You can also find snapshots programmatically at the MATLAB

command line using the findop function.

To find operating points using snapshots, the software simulates the model and creates an

operating point at each simulation snapshot time. Each operating point contains the input

and states values of the model at the corresponding snapshot time.

To verify that the operating point is at steady state, initialize your model with the

operating point values, simulate the model, and check if key signals and states are at

equilibrium. For more information on initializing your model with an operating point, see

“Simulate Simulink Model at Specific Operating Point” on page 1-119.

NoteIf your Simulink model contains blocks with internal states, do not linearize the

model at an operating point you compute from a simulation snapshot. Instead, try

linearizing the model using a simulation snapshot or at an operating point found using

trimming.

Compute Operating Points at Simulation Snapshots Using

Steady State Manager

You can find an operating point at specified simulation snapshot times using the Steady

State Manager.

Open the Simulink model.

sys = 'magball';

open_system(sys)

1 Steady-State Operating Points