Simulink Control Design™ - MathWorks

This requirement can be used to tune both SISO and MIMO step responses. In the MIMO

case, the requirement ensures that each output tracks the corresponding input with

minimum cross-couplings.

Step Disturbance Rejection

The TuningGoal.StepRejection requirement specifies how the tuned closed-loop

system should respond to a step disturbance. You can specify worst-case values for the

response amplitude, settling time, and damping of oscillations. For example,

R1 = TuningGoal.StepRejection('d','y',0.3,2,0.5);

limits the amplitude of to 0.3, the settling time to 2 time units, and the damping ratio

to a minimum of 0.5. Use viewGoal to see the corresponding time response.

13 Control System Tuning Examples