Hydraulic servo motor, also known as servo motor, is usually used to control and adjust the valve opening. The hydraulic motor is characterized by large power, fast action and small volume, which is incomparable to other actuator (such as motor). Therefore, in the current turbine control system, the hydraulic motor is the only actuator to drive the regulating valve.
The working principle of hydraulic servo motor the oil system controlled by main steam valve is mainly composed of servo valve, unloading valve and hydraulic servo motor.
