In a recent series of test flights, a new type of chopper has begun smashing speed records.
最近一种新型直升机在系列试飞中已经开始打破速度记录。
This paper presents a chopper adapting principle of rotor's resistance of induction motor, develops a two loops speed governing system, and gives computer simulation results.
本文提出了绕线式感应电机转子回路电阻的斩波调节原理，设计了双环调速系统，并进行了计算机辅助设计和仿真研究。
It is pointed out, while expounding the principle of chopper speed variation, that the value of peak current can affect the service life of components and so it is necessary to control.
文章阐述了斩波调速原理，指出峰值电流的大小会影响元器件的寿命，所以有必要对瞬时电流的大小进行控制。
The mode of speed control for mining tram includes three types of series resistances. Dc chopper and AC converter.
矿用电机车的速度控制方式包括串电阻式、直流斩波式和交流变频式三种。
The fuzzy logic controller designed in this study determines the required angular used in the DC chopper control based on motor speed error and its change.
设计的模糊控制器以电机的转速偏差及转速偏差率为输入，输出量用于控制斩波调速时的导通角。
What restrain it's developing speed is that the chopper is invalidated frequently affected the agriculture occasion, increased the work cost, to a certain extent restricted its popularization.
但刀具的频繁失效，影响了农时，增加了作业成本，在一定程度上又制约了其推广速度。
Described in this article is the working principle of chopper speed control system for wound rotor motor.
介绍了一种转子绕线式电动机斩波调速系统的工作原理。
The article mainly the speed governing technology with internal feedback high frequency chopper wave, including its working principle, function and feature, and application to Industry control.
简介几种常用电机调速方式。对应用较好的内反馈高频斩波调速技术的工作原理、功能与特点，以及在工业控制中的应用情况予以介绍。
Cuts the pot for two speed, may with the chopper, no matter what decides the speed coordination, cuts mixes the time to be short, the material temperature rise is small.
斩锅为双速，可以与斩刀任意速度配合，斩拌时间短，物料温升小。
The SVPWM method has been adopted in the PMSM speed control, also to obtain the good results in cooperation with the chopper control.
永磁同步电机变频调速采用空间电压矢量pwm方法，并与斩波器协调控制达到良好控制效果。
The SVPWM method has been adopted in the PMSM speed control, also to obtain the good results in cooperation with the chopper control.
永磁同步电机变频调速采用空间电压矢量pwm方法，并与斩波器协调控制达到良好控制效果。
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