Fractional-Order Active Disturbance Rejection Controller Design for Large Radio Telescope Antenna

Table 1

The dynamic performance of three controllers.

Controllers	Overshoot (%)	Adjustment time (s)
		2% error band	5% error band
PI	34.8	5.14	4.7308
ADRC	21.35	4.65146	3.1587
FOADRC	21.49	3.5990	2.3581