Servo hüdraulika jaam servo hüdraulika press

The energy-saving hydraulic station dedicated to servo hydraulic press adopts "pump-controlled servo" technology, which realizes precise control of flow and pressure by precisely controlling the torque and speed of the pump. It is mainly composed of electro-hydraulic servo drive, three-phase AC permanent magnet synchronous motor, high-performance special servo pump, pressure sensor and other parts. Since the output flow of the oil pump is proportional to the speed of the motor, the pressure in the oil circuit is proportional to the output torque of the motor. Through the dual closed-loop control of system pressure and flow, vector control + weak magnetic control + special PID control algorithm is adopted to complete the precise control of the torque and speed of the pump, realize the precise supply of flow and pressure according to actual needs, eliminate the energy loss of high-pressure throttling, and overcome the problem of excessive oil temperature rise caused by high-pressure throttling in the traditional "valve-controlled servo" system, so as to achieve the effect of energy saving and power saving, and at the same time reduce the system oil temperature, with the highest energy saving rate reaching 70% and the average energy saving rate of 30%.