文章主要介绍具有位能性负载特点的港口及船舶起重机械电气传动中交流变频调速技术的应用及发展趋势。
This paper introduces application and developing tendency of AC speed control technique by changing frequency in crane's electrical diving of port and Marine based on potential energy load.
基于变频调速技术和矢量控制原理，设计钢铁行业处理线的交流异步马达的传动方案。
Frequency conversion technology based on vector control theory, design of steel industry processing lines of induction motor driving program.
现代交流调速技术因其优越的性能和日益成熟的技术将在包括矿井提升机在内的电力传动系统中普及。
Modern control system of AC motors is gradually prevalent in electrical drives include of mine-hoist because of its remarkable performance and mature technology.
同时，交流调速系统以其优良的性能和较少的维护等优点，在纸机电气传动控制系统中得到了广泛的应用。
Meanwhile, AC speed regulation systems have been applied widely in the paper industry because of its better performance and less maintenance.
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 to the overhead locomotives.
现代电力传动领域中，交流异步电机变频调速具有显著的节能效果，并且可以实现无级调速，已成为当前电力传动领域研究的热点之一。
In the field of modern power driving, the adjustable speed control of AC asynchronous motor by inverter is a hot spot because of its notable energy saving function and continuous variable speed.
文章介绍了一种矿用蓄电池电机车的交流变频调速传动系统，采用无速度传感器的直接转矩控制策略。
The paper introduced the AC frequency converted speed controlled driving system of the mine battery locomotive. The driving system has a direct torque control strategy with a non speed sensor.
相应地也带动了对交流传动钻机用变频调速异步电动机的研究。
This stimulates us to research on VVVF asynchronous motors for AC driving rig.
由于异步电机交流变频调速有着明显的节能功效，以及可以实现连续调速等诸多优点，已成为电气传动领域的研究热点之一。
In the field of electric driving, the adjustable speed control of AC asynchronous motor by inverter was a hot spot because of its energy saving function.
在对复卷机控制系统的改造中，我们用交流传动代替直流传动，用变频器对交流电机进行调速控制。
In the alteration of the rewinder's controlling system, DC driving is replaced by ac driving, and frequency governors are used to control the ac motors.
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。
The experiments show that the presented VVVF speed-variable drive system has good performances and traction properties which is quit applicable tot…
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