电机的

This article introduces the status quo of linear stepping electric motor and research content of this topic, then discusses the development of linear stepping motor drive unit and general situation of the researched sample unit, furthermore supply the detailed introduction to DSP controller.

本文首先对直线电机的发展情况以及本课题的研究内容进行了介绍，然后讨论了直线步进电机驱动器的发展和本文所研究的样机的概况，接着对DSP控制器作了详细地介绍。

This article discusses the application of Intel's 51 series single-chip three-phase stepper motor to control movement, including the positive electrical, parking, of course, one can choose any speed.

本文将论述应用Intel公司的51系列单片机对三相步进电机运动的控制，包括电机的正反转，停机，当然理论上也可以任意速度的选择。

Because of the use of AC servomotor, the control precision, the execute speed, the reliability is improved greatly.

由于各执行单元普遍采用了交流伺服电机的位控模式替代了原有的普通电机加机械刹车进行位控的模式，使各环节的控制精度、执行速度、可靠性等指标有了质的提高。

Based on contact nonlinear FEM,it analyzes the intensity and rigidity of motor stator iron-core shiplap pressuring frame by ANSYS,which provides a good method for designing and calculating the motor structure.

采用接触非线性有限元分析方法，借助于ANSYS软件对电机定子铁心叠压骨架的整个结构进行强度和刚度的计算分析，根据计算结果提出改进方案，为电机的结构设计提供了一种有效的设计计算方法。

This paper mainly introduced one kind of new control stepping motor method, namely the use " the general I/O card + special purpose computer software " realizes stepping motor control, not only this method economical, moreover has the extremely good flexibility and the stability.

摘要本论文主要介绍一种新的控制步进电机的方法，即采用"通用 I/O 卡+专用计算机软件"来实现步进电机的控制，这种方法不仅经济实惠，而且具有非常好的灵活性和稳定性。

This paper mainly introduced one kind of new control stepping motor method, namely the use "the general I/O card + special purpose computer software" realizes stepping motor control, not only this method economical, moreover has the extremely good flexibility and the stability.

本论文主要介绍一种新的控制步进电机的方法，即采用"通用I/O卡+专用计算机软件"来实现步进电机的控制，这种方法不仅经济实惠，而且具有非常好的灵活性和稳定性。

Dynamic load made by variable velocity for center of mass of the components of hybrid drive linkage mechanism are balanced and avoided difficultly.

在混合驱动连杆机构中，构件的质心大都作变速运动，产生的动载荷难以完全平衡和消除，不但辅助电机所需的驱动功率偏大，对辅助运动电机的控制不利，而且也影响系统的动态性能。

In AC drive control system, in order to obtain the high dynamic response of an induction machine, the magnetizing and torque components of stator current must be decoupled suitably respective to the rotor flux vector .

以感应电机为核心的交流拖动系统为了获得电机的高动态特性，对应于转子磁链向量的定子电流的两个分量励磁分量和转矩分量必须进行合适的解耦合。

The electromagnetic torques of the motor by means of both methods,Maxwell's stress and virtual displacement methods,with straight and skewed slots are determined.

结合实测数据的验证，分析了有限元剖分形式对数值计算精度的影响；阐述了两种算法在永磁电机电磁转矩计算中各自所具有的特点，分析和比较了直槽与斜槽式电机的静转矩特性；讨论了样机定位转矩与转子位移的关系

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。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。