Direct-drive redundant hydraulic system for servomotor

The invention discloses a direct-drive redundant hydraulic system for a servomotor, relates to the technical field of hydraulic control, and solves the problem that the conventional low-cost system has low response speed and low control reliability. The system comprises a piston-type servomotor, a control unit and an oil tank, and is characterized in that: the control unit consists of two direct-drive volume control loops in parallel connection; each direct-drive volume control loop comprises an oil pump, an AC servo motor, an accumulator and an electromagnetic directional valve; an oil port of the oil pump is connected with a working cavity and the accumulator through a hydraulic control one-way valve and the electromagnetic directional valve respectively; the other oil port of the oil pump is connected with the other working cavity through the hydraulic control one-way valve; the accumulator is connected with the two working cavities of the servomotor through two high-speed on-off solenoid valves respective