Simulink Control Design™ - MathWorks

The magnitude plot for all the models varies in the 3dB range. The phase plot shows the

most variation, approximately 20 degrees, in the [1 10] rad/s interval.

Vary Outer-Loop Controller Gains

For outer-loop analysis, vary the gains of the outer-loop PI controller block, C1. Vary the

proportional gain (Kp1) and integral gain (Ki1) in the 20% range.

Kp1_range = linspace(Kp1*0.8,Kp1*1.2,6);

Ki1_range = linspace(Ki1*0.8,Ki1*1.2,4);

[Kp1_grid, Ki1_grid] = ndgrid(Kp1_range,Ki1_range);

params(1).Name = 'Kp1';

params(1).Value = Kp1_grid;

3 Batch Linearization