Changing the speed of electric motor by using ac frequency conversion is to regulate output flow of hydraulic pump to control the velocity of the motion of hydraulic actuator.
通过交流变频调速改变电机的转速来调节液压泵的输出流量。控制液压执行元件的运动速度。
The feed drive system of a precision cold ring rolling mill adopts AC servo motor and mechanical transmission, rather than conventional electro-hydraulic actuator.
采用交流伺服电机和机械驱动进给系统的冷轧环机，其进给伺服控制系统的设计需要一个新的工艺动力学模型。
Utilizing GMM to design new-type actuator, replacing traditional actuator such as the torque motor or the force motor, will enhance the response speed and precision of electro-hydraulic servo valve.
利用GMM设计新型的电—机转换器，取代传统型电—机转换器，如力矩马达或力马达等，可提高整个电液伺服阀的响应速度和控制精度。
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