电动机

In accordance with the characteristics of electrically excited six-phase synchronous motor, the control system based on air-gap-field orientation vector control is adopted in this paper.

针对电励磁六相同步电动机的特点，建立了与之匹配的基于气隙磁场定向的直接高温线出线单头电热管矢量控制系统并进行了研究。

A new six-phase disc permanent magnetic synchronous motor which adopts a one-rotor-two-stators configuration was designed. The structure and characteristics were presented . And the design method and parameters were calculated .FEM is used to analyze the magnetic field characteristics of this motor.

设计了一种新型的采用双定子夹单转子的六相盘式永磁同步电机，介绍了它的结构和特点，给出了此电机的设计方法和主要参数的计算，并利用有限元法FEM 对六相盘式永磁同步电动机的磁场特性进行了仿真分析计算。

Stepper motor excitation of their number can be divided into three-phase, four-phase, five-phase, eight or even six-phase phase.

步进电动机按其励磁相数，可以分为三相、四相、五相、六相甚至八相。

In view of the uncertain load disturbances and parameter variations and so on, the disturbance restraint performance of the six-phase synchronism motor control system for the ship electric propulsion is improved under the robust control theory.

在船舶的空间运动模型和螺旋桨四象云母加热圈限模型的基础上，综合考虑船舶和螺旋桨地相互作用，建立了船桨一体化的运动模型，并结合六相同步电功机控制系统仿真研究船舶电力推进六相同步电动机控制系统典型工况下的运行性能。

The inductance motor being studied is of six-phase.

以六相移30 的绕组结构为例，对包括滤波器的多相异步电动机建立了数学模型并进行了仿真分析，仿真结果验证了电抗器的有效性。

In order to study the speed control performance of multiphase trapezoidal-wave permanent magnet synchronous motor, the mathematical model was established based on the six-phase TPMSM with Y-Y winding shifting 30° electric-degree.

为了研究多相梯形波永磁同步电动机的调速性能，基于Y-Y移30°电角度的六相TPMSM建立数学模型，在Simulink仿真环境下设计了TPMSM的电流型自控频率式调速系统。

Based on the practice of the use of φ95mm subsurface sucker rod pump in Shengtuo Oilfield in recent years, the causes of the failure of the pump are analyzed, and relevant precautions are put forward:(1)selecting oil wells with sufficient fluid supply for pumping;(2)under the condition of the pump efficiency being the same, the submergence depth of the pump being somewhat larger than that of the small pump, and 450～500m being feasible;(3)adopting Grade H ultrahigh-strength rod string and fixing a sinker bar at the bottom of the rod string;(4)selecting long stroke and low pumping speed, and more than 5m stroke and less than 6min-1 pumping speed being recommended;(5)adopting zirconium oxide valve ball and seat ＋ spray welded plunger ＋ nitrided barrel.

根据胜坨油田近几年采用φ95mm有杆抽油泵提液的实践，分析了造成这种抽油泵失效的原因，包括与其配套的脱节器失效、抽油杆断脱、泵漏、电动机不配套和生产管理不善等。为增强泵的提液能力和工作可靠性，提出5 项预防措施：(1)选择有充足供液能力的油井；(2)在保持相同泵效的情况下，泵的沉没度应略大于小泵，推荐按450～500m设计；(3)采用H级超高强度抽油杆柱，并在杆柱底部配置一定重量的加重杆；(4)采用长冲程、低冲次的参数匹配，推荐光杆冲程大于5m，冲次小于6min-1；(5)为提高泵筒、活塞和阀座的防腐耐磨性，推荐采用&氧化锆阀球和阀座+喷焊柱塞+氮化泵筒&的结构形式。

YY series single-phase capacitor run asynchronous motor - Range Hood Motor, air conditioner fan motor, heater motors, water heaters strong emission motor, cooling fan motors, air filters motor, Ventilator Motor , Shoe Polisher motor shredder motor and so on.

主要产品：一、YY系列单相电容运转异步电动机——吸油烟机电机、空调器风扇电机、电暖器电机、热水器强排电机、冷风机电机、空气清新机电机、换气扇电机、擦鞋机电机、碎纸机电机等。

Through check and test,cause is found which brings to bearing shell temperature of feed water pump electromotor going up,and effective settlements are adoped to make operation effects to get the best state.

通过检查和试验，找出了导致某电厂给水泵电动机轴瓦温度升高现象的原因，并采取了有效的解决方案，使运行效果达到最佳状况。

The following motor versions are required for "ZF gearbox mounting pre- pared"(see "Gearboxes" for gear selection):* Types IM B5 or IM B35 * Shaft with fitted key and full-key balancing.

以下电动机版本都需要&的ZF变速箱安装预们&（见&变速箱&，为齿轮选择）：*类型的IM B5或即时通讯b35 *轴接头，重点和全面平衡的关键。

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。