电机驱动的

In the light of the trapezoidal back electromotive force and square phase current of brushless DC motor,a novel strategy of matrix converter driving BLDCM is presented in this paper.

针对无刷直流电机反电势为梯形波、相电流为方波的特点，提出一种用于驱动无刷直流电机的矩阵变换器的控制策略。

The principle of the micro circular traveling wave ultrasonic motor is described mostly,which include the structure of the mo- tor,the principle of traveling wave,the principle of elliptical motion ,the drive principle of the motor.

重点介绍了微型环型行波超声波电机的结构、行波的产生、椭圆运动的产生、驱动原理等，最后介绍了制作这种电机的实验结果。

The drive circuit was reversible in this system. The linear motor was controlled by the change of drive current.

该系统采用双向可逆的驱动电路，用驱动电流变化来控制直线电机的运动。

The discussion of hardware design of the unit are focused on the three respects: the measurement and the control of warp tension, the driving of the warp beam.

本文综述了前人在织机送经研究领域的成果，讨论了新型织机理想送经机构的特性和电动送经装置的模式，提出了用步进电机作为送经电机、单片微机作为控制器的新型电动送经装置方案，从经纱张力感测、控制和织轴驱动三个方面论述了该电动送经装置的硬件设计方案。

Afterwards, we put forward a system solution for speed-control of blushless DC motor in this paper. Its hardware is based on SST89E554RC, and it drives the motor through a PWM circuit which is high-performance and low-cost.

本文设计了无刷直流电机的调速系统的整体方案，设计制作了以SST89E554RC为核心的硬件控制电路，该电路通过一个高性能、低成本的PWM脉冲形成电路，对电机进行驱动控制。

Disc type coreless permanent magnetic synchronous motor, which is a new kind of permanent magnetic, has many advantages, such as little volume, low mass, low lost, high power and so on. It gradually becomes the perfect drive device.

盘式无铁心永磁同步电机是一种新型的永磁电机，其以体积小、重量轻、损耗小以及功率大等优点逐步成为当今理想的驱动装置。

Based on the theoritical study of fuzzy control and the related data including temperature of the burning zone of cement rotary kiln,temperature of emitout from the kiln,the rotary speed of coal feed motor and rotary kiln motor,the paper offers the designation of a fuzzy controller.

本论文通过对模糊控制理论的研究，并采集水泥回转窑烧成带温度、窑尾废气温度、喂煤电机的转速和回转窑驱动电机的转速等相关数据，设计了一个Fuzzy控制器。

The different locations of driving tips on the horn caused different elliptical trajectories, and how variation influence on motor mechanical output is studied through FEM method. The motor got best performance when positioning driving tips on antinodes of the bending wave.

用有限元法研究了不同形态的椭圆振动轨迹对电机输出性能的影响，发现当驱动足位于弯曲驻波波腹处电机性能最稳定。

Based on this background, this dissertation analyses the theories of vector control of induction machine, and designs a electric vehicle driver employing TMS320LF2407, IPM and so on.

在这个背景之下，本论文对异步电机的矢量控制技术进行了理论分析和研究，采用数字信号处理器TMS320LF2407为核心控制器，IPM为功率模块，设计并在车上运行调试和优化出适合电动汽车运行工况的电动汽车驱动电机控制算法。

This positive-feed insertion system has the tension of each roller controlled by a Control Techniques Dynamics UMD servo-motor with resolver feedback to a Unidrive SP AC drive operating in servo-mode.

在这种强制进料插入式系统中，每一辊子的张力都由艾默生CT Dynamics的UMD伺服电机控制， Unidrive SP交流驱动器在伺服模式下驱动带编码器反馈伺服电机。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。