The double close loops of speed and current control is introduced in the system and the PI control is implemented in the current and speed loop, the position of rotor pole is detected by hall element.
系统采用电流、速度双闭环控制，电流、速度的调节采用PI调节，转子磁极位置通过霍尔元件检测。
With speed and current close-loop control based on digital PI algorithm and the high performance of the DSP, high accuracy and high reliability control can be easily realized.
通过速度与电流的双闭环数字PI算法结合DSP的优越性能来达到高精度，高可靠性的控制目的。
Finally, the indirect vector control system is made as the research target and double close loop control systems which contain synchronous current inside loop and speed outside loop are introduced.
首先对磁场定向控制理论进行了详细分析，比较后采用间接磁场定向的控制方法，并建立基于同步电流内环、转速外环的双闭环控制结构。
Brushless motor control system design based on C8051 was introduced, speed and current double close loop control was realized.
论述了基于C8051的直流无刷电机控制系统设计，实现了速度、电流的双闭环控制。
The voltage converter works in PWM mode. Frequency-control speed regulation, DC voltage supply monitoring of the converter, synchronous motor power-angle close-loop control are combined.
控制策略为逆变器PWM调压、变频调速结合逆变器直流侧电压闭环、同步电动机功角闭环控制。
Sensorless DC motor close-loop control module include reversing control, current loop regulating, the positive and negative rotational speed controls with speed ring etc.
无传感器闭环控制模块包括换向调节、电流环调节和速度环调节、正反转速控制等功能。
The software has been programmed with C. Sensorless PMSM dual close-loop vector control with feedback of speed and current are realized.
软件采用C语言编写，实现了无位置传感器控制算法及转速和电流双闭环矢量控制；
This study brings forward backstepping control based on nonlinear control strategy as a possible way to implement close-loop speed-control based on the characteristic of fans load.
针对风机负载的特点，提出一种基于非线性控制策略的反推控制，实现了速度闭环控制。
This study brings forward backstepping control based on nonlinear control strategy as a possible way to implement close-loop speed-control based on the characteristic of fans load.
针对风机负载的特点，提出一种基于非线性控制策略的反推控制，实现了速度闭环控制。
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