同步电动机

Variable speed system of cycloconverter-fed multiphase synchronous motor is a major area in the development of high-power AC drive system because of its small dimension, large capacity, high torque, high-rate power, wide-range variable speed, low harmonic pollution, and reliable safety. In the low-speed and large-capacity industrial drives, such as rolling mills, winding motors, marine propeller, cement mixer, etc. it will find a wide application in the future.

采用多相同步电动机的交交变频调速系统，具有体积小、容量大、高转矩、高功率比、宽平滑调速区、谐波污染小、安全可靠的特点，是大功率交流调速领域的主要发展方向之一，在轧机，矿山卷扬，船舶推进，水泥球磨机等低速大容量的场合有着广泛的应用前景。

The electrical propulsion system proposed in this article utilizes the advantages of PMSM such as small volume, light weight, small moment of inertia and high effectiveness of operation, high reliability, against the DC electric propulsion system"s defectiveness on structure and asynchronous electric propulsion system"s power defectiveness and inefficiency.

本文设计的PMSM电力推进系统利用了永磁同步电动机体积小、重量轻、转动惯量小、运行效率高、可靠性高等优点，弥补了直流电力推进系统在结构上的固有缺陷以及异步电力推进系统功率因素低和效率低的缺陷。

For the investigation of temperature rise in permanent magnets of permanent magnet synchronous motors, it is necessary to analyze eddy current loss in permanent magnets efficiently and accurately.

对于永磁同步电动机中永磁体的发热及温升，快速准确地分析永磁体的涡流损耗是其关键问题所在。

How to monitoring synchronizing error,and using 80196KC to control exciter.

以及同步电动机失步检测及以80196KC进行控制的方法。

Permanent magnet synchronous motors have been widely used as AC drives over the last two decades due to their high efficiency, high power density and no dc field winding in the rotor. It is well known motion control of PMSM requires accurate position and velocity signals to realize field orientation.

永磁同步电动机由于无需励磁电流、运行效率和功率密度都很高，在过去的二十年里已被广泛地应用在交流调速传动中，但它的高性能控制需要精确的转子位置和速度信号去实现磁场定向。

In this paper, to reduce cogging torque in solid-rotor permanent magnet synchronous motors, an analytical method, which was based on energy method and Fourier expansion, was proposed to obtain the expression of cogging torque, which can express its relation with design parameters.

为削弱实心转子同步电动机的齿槽转矩，文中提出了一种基于能量法和傅立叶分解的的解析分析方法，给出了能明确表达齿槽转矩与设计参数关系的齿槽转矩解析表达式，据此研究了极弧系数对齿槽转矩的影响。

In this paper, the method of design for permanent magnet synchronous motors is discussed.

本文讨论的是永磁同步电动机的设计。

The optimized projects of eliminating low frequency torque ripple in this subject are to make use of low speed and high torque permanent magnetic synchronous motors.

给出了低速大转矩无齿轮传动系统消除低频转矩脉振的优选方案是采用低速大转矩稀土永磁同步电动机的结论。

The content and conclusions are significant to the study and design of multiphase PMSM propulsion system.

本文的研究成果和结论对多相永磁同步电动机推进系统的研究和设计具有理论指导意义。

Through the theory analyses of PMSM timing and the research of field orientable control, this paper theoretically prove another great achievement of field orientable control in the fields of AC motor timing.

本文通过对永磁同步电动机调速的理论分析，以及磁场定向控制的研究，从理论上证明了磁场定向控制在交流电机调速领域上的又一次重大发展。

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