1) chopping fraction
斩波率
1.
Introduction was made to the basic principle of active frequency drift(AFD) method, the in? uences to the system operation per- formance discussed on using the method to test island with different chopping fraction size and polarity choosing, and analysis was carried out on AFD method’s test non-detection zone(NDZ).
介绍了有源频率偏移(AFD)法的基本原理,讨论了使用该方法检测孤岛时不同的斩波率大小与极性的选取对系统运行性能的影响,并对AFD法的孤岛检测盲区(NDZ)进行了分析。
2) chopping frequency
斩波频率
1.
The MOSEF may be destroyed by the great transient impact current when the chopping frequency was not considerate.
用软起动方式能降低无刷直流电动机(BLDCM)起动时的平均电流,但瞬时冲击电流仍会在斩波频率选择不当时烧坏晶闸管。
3) high-power chopper
大功率斩波器
1.
By analyzing weld technology of the purple copper water-cooled radiator used in high-power chopper , we have found a newly direct and current anti-weld method.
本文通过对大功率斩波器紫铜水冷散热器的焊接工艺、技术进行分析研究,得出了一种新型实用的直流反接焊接技术。
4) chopper
[英]['tʃɔpə(r)] [美]['tʃɑpɚ]
斩波
1.
Study on digital dual closed-loop chopper inner-feed cascade variable speed drive system based on state-space averaging model and its application;
基于状态空间平均模型的全数字双闭环斩波内馈串级调速系统
2.
The research on mechanical characteristic of chopper cascade speed regulation system;
斩波串级调速系统机械特性曲线研究
3.
The design of inner-feeding chopper cascade speed regulation system and some problems which need been noticed;
内馈斩波串级调速装置设计及需要注意的几个问题
5) chopped wave
斩波
1.
The wire control circuit is composed by pulse trigger circuit,voltage of armature feedback circuit and chopped wave circuit.
介绍了Saber软件对一种送丝机控制电路的仿真研究过程,该送丝机控制电路由脉冲触发电路、电枢电压负反馈电路和斩波电路等部分组成。
6) chop
[英][tʃɔp] [美][tʃɑp]
斩波
1.
The GTO Chop Adjustable Speed System for Novel Subway Vehicle;
新型地铁车辆用GTO斩波调速装置
2.
The new program is proposed to use DC chopper technology for the realization of AC drive system without transformer.
车载牵引变压器小型轻量化是机车高速运行的需要,在车载变压器小型轻量化上有几种相互竞争的方案,针对这些方案做了较系统的总结,并对它们的优缺点进行了比较分析,提出了使用直流斩波技术实现无变压器化交流传动系统的新方案。
3.
It is a new scheme to realize miniaturization and lightening of on-board traction transformer by using DC chopper for AC drivesystem of high speed train without transformer.
利用直流斩波技术实现高速机车无变压器化交流传动系统结构是实现车载牵引变压器小型轻量化的一种新方案,这种无变压器化交流传动系统结构需要解决的首要问题是其中的直流斩波器的电路拓扑结构及其元件参数的确定问题。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条