Simulation in the Support of Eigenstructure Assignment for Interacting Control Loops

Simulation lends confidence to the comparison of classical and eigenstructure assignment techniques to decouple interactive control loops. Examples for decoupling a second order interactive system by various methods are presented. The methods include: relative gain array, linear decoupling, active feedforward, and eigenstructure assignment methods. Simulated responses for an example of each of the decoupling methods are presented for setpoint changes and initial condition offsets. The examples show that only the eigenstructure method decouples the system responses to both types of perturbations.