One kind coincide with the change of the full load output power of intelligent hydraulic power source

One kind coincide with the change of the full load output power of intelligent hydraulic power source. It is mainly to solve the traditional hydraulic power source due to low energy efficiency, it could easily lead to a waste of energy and other technical problems in carrying out its mandate. The technical scheme of points are: a plunger pump motor and hydraulic system of a hydraulic power plant connected to the programmable controller and each three-position automatic valve of the hydraulic system, the check valve solenoid EHV, pressure sensors and hydraulic power units the control circuit of the phase inverter; programmable controller to adjust the rotational speed of the drive motor to change the output flow rate, and the output of the motor torque is kept constant under inverter control, the plunger oil pump output in the rated pressure range positive correlation between changes in work load pressure changes with the system together. It enables the power output of the energy source and the work load is fully consistent with the consumption of energy, it is especially suitable for highway, railway bridge construction in prestressed intelligent tensioning system make the hydraulic power source.