Speed control loop in which the power loss of throttle large, low-speed stability.
其中节流调速回路的功率损失大，低速稳定性好。
Double closed loop control is implemented with increment encoder through signal of speed and position.
采用增量式编码器，通过速度及位置信号进行双闭环控制。
Experiments show that the two-loop Servo System has good performances in speed and position control.
实验表明：双闭环的永磁数字交流伺服系统拥有很高的速度和位置控制性能。
The closed-loop of speed is essential in the high-performance direct torque control system.
在高性能的直接转矩控制系统中，速度闭环是必不可少的。
The closed-loop of speed is essential in the high-performance direct torque control system.
在高性能的直接转矩控制系统中，速度闭环是必不可少的。
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