An anti-windup-based robust dynamic output feedback control algorithm is presented for hydraulic servo position
system with unmeasurable states, uncertain parameters and input saturation in a rolling mill. Firstly, a sufficient condition
of stability can be transformed into a linear matrix inequality(LMI) condition by using Finsler’s lemma, and the controller
parameter matrices are obtained by solving LMIs; Secondly, by compromising the disturbance attenuation and stability
region, the anti-windup matrix is obtained by solving a convex optimization problem. It can be proved that the proposed
method can guarantee the closed-loop system is uniformly bounded stable and possesses robust ??∞ performance. Finally, a
simulation is carried out on the hydraulic servo position system of 650mm reversing cold-strip rolling mill, the simulation
results show the validity of the proposed algorith