同步电动机

Nowadays, the research on low speed and high-torque permanent magnetic synchronous machine which using in gearless elevator are getting more and more attention in the fields of motors, and has great science significance and application value.

无齿轮电梯用低速大转矩永磁同步电动机是目前电机领域的研究热点之一，其研究具有重要的科学意义和实用价值。

This paper resumptively introduces the gist of design of electromagnetism, structure and so on of the large synchronous motor driving mine winder.

概括了矿井提升同步电动机的电磁、结构等方面的设计要点。

Fig. 49 Synchronizable motorized operating mechanisms for 3VF4, 3VF5 and 3VF6

图49 用于3VF4，3VF5和3VF6的同步电动机操作机构

3VF9 523-1Q..0 synchronizable motorized operating mechanism

3VF9 523-1Q。。0同步电动机操作机构

3VF9 623-1Q..0 synchronizable motorized operating mechanism

用于3VF6 3VF9 623-1Q。。0同步电动机操作机构

Four parts are included as follows:First of all, the phasor method is adopted to analyze the influence of the demagnetizing coefficient, saliency ratio and stator current control strategies of PMSM on the motors voltage and current phasor loci and then the power capability and the flux-weakening level.

概括起来，本文的内容可分为以下几个部分：第一部分首次采用永磁同步电动机d、q坐标系下的相量分析方法，详细分析电机不同弱磁率、凸极率及不同定子电流控制策略对电机电压、电流相量变化轨迹的影响，及由此导致的电机功率特性及弱磁扩速能力的差异。

During the winding of magnetic pole coils used in synchronous electric motors, cold hardening is induced by press bending at 90°, by which the coils are hard to be pressed and shaped, thus local resistivity increases and results in influence on the coil lifetime.

摘要同步电动机磁极线圈在编绕加工时，90℃角处因压弯而产生的冷作硬化现象使线圈无法装压成型，且局部电阻率增大，甚至影响磁极线圈使用寿命。

Synchronous motor ; Capacitor ; Starting ; Computer simulation

同步电动机；电容；起动；数字仿真

The influence of the machine parameters on the starting performances of synchronous motor is studied by digital simulation.

通过数字的仿真，研究了电机参数尤其是阻尼参数对同步电动机起动性能的影响。

Based on the magnetic field calculation some parameters of the sample motor such aselectromotive force with no load, leakage coefficient with no load and magnetictorque are calculated and influence on the parameters that is caused by the change ofthe structure of the sample motor is also discussed.

在电磁场计算的基础上，进行了电机空载反电势，空载漏磁系数，电磁转矩等相关参数的计算，讨论了横向磁通永磁同步电动机的结构变化对参数的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失