A Strategy Study on the Robust Control of the Synchronism-Balance Control System about the Four Cylinders Hydraulic Press

In order to improve the active beam´s levelness and the system´s working accuracy of the hydraulic press, the author builds mathematical model, and certains all parameter values. This paper makes every input load interferences equivalent to output terminal, and adopts output sensitivity method to design robust feedback controller. The simulation result indicates that this controller has good robustness and adaptability for system disturbance.