The scanning mirror precise servo system is designed by the scheme of compound control of open and closed loops with current, velocity and position loops in this paper.
针对扫描镜精密伺服系统，本文采用按照电流环、速度环和位置环等三个回路进行控制系统设计的开闭环复合控制方案。
A discrete variable structure control with an integral controller is proposed and applied to an electrohydraulic velocity servo system.
本文提出了一种带有积分控制的离散变结构控制方法，并应用于电液速度伺服系统。
The good velocity controllability of servo-dynamo can be used to realize variable blank holding force control through adjusting the force on sheet metal blank with a holding force adjusting equipment.
利用伺服电机良好的速度可控性，可以通过压边力调节装置调整作用在板坯上的压边力的大小，更容易实施变压边力控制。
Velocity loop servo system with fuzzy PID controller, correcting PID parameters instantaneously using fuzzy control, improved response speed, control accuracy and robustness of the system.
对伺服系统速度环采用模糊PID控制器，利用模糊控制实时修正PID参数，提高了系统的响应速度、控制精度以及鲁棒性；
Secondly, the control of position loop was improved by using compound control with velocity and acceleration feed-forward control and digital notch filter control in feeding servo system.
其次对位置环的控制进行了改进，将位置前馈改进为速度前馈和加速度前馈，并在前向通路中增加了一个数字阶式滤波器组成复合运动控制器。
The fuzzy control already has obtained the satisfactory effect in the alternating and direct velocity modulation system and the servo system.
模糊控制已在交直流调速系统和伺服系统中取得了满意的效果。
The main control structure of the servo drive is formed by two cascade loops, which are the current inner loop and the velocity outer loop.
驱动器控制架构采用电流与速 度迴路串级的双迴路控制架构，其中可调参数为电流与速度控制器参数。
One servo system consists of several subsystems such as position control, velocity control and feedback of position.
伺服系统由多个子系统组成，如位置控制器、速度控制单元、位置反馈装置等。
Then, a DTC induction motor servo control simulation model is established, which adopts the self-learning fuzzy in velocity observer.
建立了伺服感应电动机DTC控制模型，其中速度观测器采用文中提出的自学习模糊速度观测器。
Then, a DTC induction motor servo control simulation model is established, which adopts the self-learning fuzzy in velocity observer.
建立了伺服感应电动机DTC控制模型，其中速度观测器采用文中提出的自学习模糊速度观测器。
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