After space vector PWM modulation algorithms and implementation methods have been analyzed, dual closed-loop vector control system of asynchronous motor is worked out.
分析了空间矢量pwm的调制算法以及实现方法，最后设计了异步电机的双闭环矢量控制系统。
Working principles of dual closed-loop tester and parameter design for its major parts are introduced and indoor simulation testing technique for walking tractor discussed.
本文系统地介绍了双闭环试验台的工作原理，主要工作部件的参数设计，并对手扶拖拉机室内模拟试验技术问题进行了探讨。
Methods Dual chamber rate adaptive pacemaker with closed loop stimulation were implanted into 16 patients with sinus chronotropic disability.
方法对窦房结变时性功能障碍的16例患者，植入闭环刺激双腔频率适应性起搏器。
The investigation shows that the dual-closed-loop control for SLS rapid prototyping can obtain fine control stability, and can improve the accuracy of prototyping parts.
研究表明，SLS快速成形的双闭环控制能够获得较好的控制稳定性并能进一步提高原型件的成形精度。
When a dual-arm manipulator carries an object from one position to another, the two arms and the gripped object constitute a closed loop system.
当双臂机械手搬运物体从一个位置到另一个位置时，机架、两个臂和被夹持物体构成一个封闭系统。
Theoretical analysis and experimental results verify that the dual closed loop repetitive control based inverter has high output energy quality and low THD of grid-connected current.
理论分析和实验表明，基于双闭环重复控制的并网逆变器具有较高的输出电能质量和较低的并网电流谐波畸变率。
Combined with the structural parameters of TAO649D traction motor, the mathematic model of the DC motor is built and its speed and current dual-closed-loop system is designed.
结合TAO649D机车牵引电机的结构参数，首先建立了该直流电机的数学模型，设计了该电机的转速，电流双闭环系统。
Dual-closed loop structure is adopted in main thrust motor and rudder motors, and PI controller is implemented by DSP software.
对主推进电机和舵电机的控制采用了双闭环结构，PI调节器由DSP软件实现。
Outer inner voltage-current dual closed loop control system to improve the system accuracy and stability of the output and improve the system dynamic response.
采用电压外环电流内环双闭环控制系统，提高了系统的输出的精度和稳定性，改善了系统动态响应特性。
Simulation results indicate that the clutch engaging speed can be accurately controlled by using DC servo motor dual closed loop control system. The start quality of Vehicle was improved.
结果表明：直流伺服电机驱动离合器，能很好地控制离合器的结合速度，提高车辆起步品质。
Simulation results indicate that the clutch engaging speed can be accurately controlled by using DC servo motor dual closed loop control system. The start quality of Vehicle was improved.
结果表明：直流伺服电机驱动离合器，能很好地控制离合器的结合速度，提高车辆起步品质。
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