Stabilizing and Robust Fractional PID Controller Synthesis for Uncertain First-Order plus Time-Delay Systems

Algorithm 2

Stability region for a system with fixed parameters.

(1)	Compute interval using Algorithm 1.
(2)	Select a value from the already determined range.
(3)	Get the roots from equation (11).
(4)	Compute the parameters and .
(5)	Delimit the area using equation (16).
(6)	If return to Step 2.