The performance of AC variable speed drive system has been improved greatly since field-oriented control is applied.
矢量控制使交流调速系统的性能产生了质的飞跃。
As a new kind of variable speed drive system, the product has great potentialities of development and wide prospects of market.
作为一种新兴的调速系统，该产品发展潜力较大，市场前景广阔。
An ABB variable speed drive system is to power the giant fan that generates subsonic wind speeds at Boeing's flagship wind tunnel in Philadelphia.
ABB的一个变速驱动系统正在为波音公司在费城的旗舰风洞的大型风扇提供动力，以制造出次音速风速。
The ACS 5000 variable speed drive system enables Boeing to run the fan in adjustable speed mode or at constant speed, depending on the protocols and parameters of each test.
ACS 5000变速驱动系统使得波音公司可以根据每个测试的规程和参数，自由设定可调速度模式或者恒速模式。
The switched reluctance drive is a new variable-speed motor system which consists of power electronically-switched circuits, doubly salient reluctance motor and controller.
开关磁阻电机是由功率开关电路、双凸极磁阻电机及控制器构成的新型调速电动机系统。
When a low load situation has been determined by the refrigerant system controls, the variable speed drive operates the compressor motor at lower speed mode of operation.
在制冷系统控制器确定为低负荷情况时，可变速驱动控制器以运转的较低速度模式操作压缩机马达。
The cookers can be equipped with variable speed agitator drive systems (jacket heating) and a PLC system to control the cheese temperature throughout the cook cycle.
奶酪制造机可配备不同速度搅拌器驱动系统(套式加热)和PLC系统，以在烹饪循环过程中控制奶酪温度。
A strategy of speed control for vector-controlled asynchronous motor drive system using sliding mode variable structure control with an integral action was proposed.
针对滑模变结构控制的抖振问题，提出一种用于异步电动机矢量控制系统的积分滑模变结构速度控制方法。
The article introduces the raising process, composition of raising machine and its the variable speed dive control system. Multi-motor drive of raising machine's feature is highlighted.
本文简介了起毛工艺、起毛机的构成，起毛机变频调速控制系统，重点介绍了多电机传动的起毛机传动的特点。
The drive system preferably includes a gear, gearbox, variable speed drive and at least one positioning sensor.
该驱动系统优选为包括齿轮、齿轮组、具有动力制动性能的变频驱动的马达、以及至少一个位置传感器。
The experiments show that the presented VVVF speed-variable drive system has good performances and traction properties which is quit applicable to the overhead locomotives.
试验表明，所设计的变频调速系统数字化实现方便，具有良好的调速和牵引性能，在矿机车交流传动领域有着广泛的应用前景。
Further, the operation of the variable speed drive is combined with a pulse width modulation control of different system components.
此外，可变速驱动器的操作与不同系统部件的脉宽调制控制相结合。
A variable speed drive is provided for operating a compressor motor in a refrigerant system.
本发明提供一种可变速驱动器，该可变速驱动器用于操作制冷系统内的压缩机马达。
The experiments show that the presented VVVF speed-variable drive system has good performances and traction properties which is quit applicable tot…
试验表明，所设计的变频调速系统数字化实现方便，具有良好的调速和牵引性能，在矿机车交流传动领域有着广泛的应用前景。
The experiments show that the presented VVVF speed-variable drive system has good performances and traction properties which is quit applicable tot…
试验表明，所设计的变频调速系统数字化实现方便，具有良好的调速和牵引性能，在矿机车交流传动领域有着广泛的应用前景。
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