查询词典 motor-driven

This kind of motor discussed in this paper also a brushless DC square wave motor.

本文提到的电机是方波无刷直流电机，所以也涉及到了其PWM控制器的设计。

As an induction motor, it is inevitably for the levitation control winding of bearingless induction motor to induce current in the squirrel cage.

无轴承异步电机作为一种感应电机，其悬浮控制绕组在鼠笼转子中不可避免地感应电流，也就是存在电流损耗。

And aiming at squirrel cage bearingless induction motor, a control system is accomplished and tested on the test machine. The laboratory bearingless induction motor is successfully levitated for the first in our country and can be operated stable as well as transient conditions.

并以两自由度无轴承鼠笼式异步电机为研究对象，研制了一套控制系统，在国内首次成功地实现无轴承电机的稳定悬浮工作。

Series motor is totally enclosed and fan-cooling three-phase squirrel cage induction motor,which is newly designed inconformity with the relevant requirement of IEC stand ards.

系列电动机是全封闭自扇冷式绎笼型三相异步电动机，是最新设计的基本系列，符合IEC标准的有关规定。

According to the local electricity supply, electricity supply reliable motor areas should be elected, the general selection of squirrel-cage type, only in the power grid capacity is very small, not enough to guarantee the squirrel cage motor starting, the only consideration to use Wound.

根据当地的供电情况，供电可靠的地区应选电动机，一般选用鼠笼型，仅在电网容量很小，不足以保证鼠笼型电动机启动的情况下，才考虑选用绕线型。

Secondly, using digital processor TMS320LF2407, which is special for motor control, we develop a squirrel-cage induction motor experiment platform which based on VC principle.

其次依据矢量控制的原理，以电机控制专用的DSP 芯片TMS320LF2407 为核心，设计、开发了一套基于 DSP 的矢量控制变频调速实验平台。

The intelligent power module, the detect circuit of current and motor speed, DSP and the program implement of the function module of the squirrel-cage induction motor vector control system are all presented particularly in this paper.

文中对智能功率模块 IPM、DSP 芯片、电流和转速检测电路以及异步电机矢量控制系统各个功能模块的 DSP 编程实现都进行了详细的介绍，重点介绍了模糊算法和空间矢量算法的 DSP 编程实现方法。

Three-phase squirrel-cage induction motor in its structure is simple, cost-effective and of good work, and many other advantages, in today's industrial applications in various fields have a wide range of applications, but it is an obvious shortcomings, is the starting current too big ( General starter for the rated current of the current five to seven times or even greater), so regardless of the motor itself, or the power grid and other electrical equipment, will have a negative impact.

留学解答资讯网：三相鼠笼式异步电动机以其结构简单、性价比高和工作特性好等诸多优点，在当今工业应用的各个领域都有广泛的应用，但它有一明显缺点，就是起动电流过大(一般起动电流为额定电流的5～7倍甚至更大)，这样不论是对电动机本身，还是对电网以及其他电气设备，都会产生不利的影响。

Aimed at the problem of choosing the initial value when the Newton method is used to compute the controlling unstable equilibrium point, a practical and rigorous solving scheme was presented: by identifying the controlling load bus of the given fault, and using the Thevenin equivalent circuit to represent the rest of the system at the state of the post disturbance stable equilibrium point, using the steady equivalent circuit to represent the induction motor in composite load, and then using the torque characteristics of induction motor, a point near the CUEP is gained to be the initial value. The second order normal forms was used to approximate the stable manifold of CUEP, and the local approximating boundary of the region of attraction of the post disturbance stable equilibrium point was gained. Then just by simulating the state of the system at the fault clearing time, the transient voltage stability of the system could be determined.

针对采用牛顿法求取故障后系统主导不稳定平衡点(controlling unstable equilibrium point，CUEP)存在的初值选取难题，提出一种实用但不失严谨的解决方案：通过识别给定故障的主导负荷母线，对主导负荷母线以外系统由故障后稳定平衡点处的状态进行戴维南等值，对负荷中感应电动机部分采用其稳态等值电路，再由感应电动机的转矩特性求得CUEP附近的一个点作为近似的CUEP，以此为迭代初值可靠求得CUEP；采用二阶正规型来近似CUEP的稳定流形的方法求得近似的局部吸引域边界；由仿真得到故障清除时刻系统的状态并根据该状态是否位于吸引域内判断系统的暂态电压稳定性。

E. Voltage starting: check the situation of motor, to control the motor steady starting.

e。电压起动：通过实时检测电机的状态，自动去控制电机平稳起动。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。