No commutator motor is a new variable-speed motor, its adjustable-speed performance is more advantage than dc system.
无换向器电动机是一种新型的可调速电机，其调速性能优于直流调速系统。
Power and Gearing device: Various kinds of motor, reducer, variable-speed motor, lift machine, protection device, and electronic control system etc.
动力与传动装置：各种类型电动机、减速机，变速机、电梯主机，保护装置，电控系统等。
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。
The two variable resistors in the center are for controlling motor speed and trigger level.
两个可变电阻的中心控制电机转速和触发电平。
Variable frequency and variable speed motor system is of high intelligence, high reliability, fault-tolerant capability.
变频调速电动机系统具有高智能、高可靠性和高容错能力。
In this paper the eddy field of a CTD variable speed motor is analysed and calculated by the finite element method.
本文用有限元方法对CTD调速电动机的涡流场进行了分析和计算。
Control Techniques variable frequency drives provide continuous control, matching motor speed to the specific demands of the work being performed.
控制技术的变频驱动器提供连续控制，配套电机的速度，工作的具体要求正在执行。
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。
DSP-based variable frequency AC motor speed control system, he is more use of the procedure.
基于DSP的交流电动机变频调速控制系统，他是比较使用的程序。
In high precision variable frequency speed adjusting system, system's performances are guaranteed by accurate motor parameters.
在高精度变频调速系统中，准确的电动机参数是系统性能的保证。
It is introduced the basic concept, mathematical expression and design problems of the variable structure system and the application of AC motor speed adjustment system.
介绍变结构系统的基本概念、数学表达设计问题及其在交流电机调速系统中的应用。
This product adopts adjustable plastic board for conveyor belt, high-temperature resistance, corrosion resistance, with infinitely variable speed motor power, can be arbitrary regulation speed.
本产品线采用可调节的塑料板作输送带，耐高温、耐腐蚀，以无极变速电机作动力，可任意调节速度。
Most of main pump in pump stations driven by variable speed motor for long distance transport petroleum engineering.
在长距离输油（气）管道工程中，大部分泵站内的主泵采用调速电机驱动。
The speed of main motor can be adjusted in variable frequency so as to adapt different cutting force and drilling speed.
主电机可变频调速，以适应不同的切削力和钻孔速度。
The model of hydraulic motor pump variable speed control system is built.
同时建立了该液压电机泵变速控制系统的数学模型。
Travel mechanism of each track consists of a variable two-speed piston motor, a planetary reducer and a parking brake, travel brake buffer valve is mounted on motor to reduce hydraulic shock.
每侧履带的行走机构由一个变量双速柱塞马达、行星减速器和制动器组成，行走制动缓冲阀与马达一体安装，吸收了行车时由于制动或载荷变化带来的液压冲击。
In this system, the variable frequency motor is applied to meet the requirement of low speed to check the compositive error and high speed to measure the vibration.
针对检测综合误差和振动时对主轴转速的要求，采用变频电机来控制主轴转速，以满足系统对转速的要求。
This paper describes the variable-structure speed control for a DC motor.
本文着重阐述直流马达调速系统的变结构设计。
Simulation analysis was carried out for the variable speed pump-control-motor hydraulic system. Mathematic models of inverter, asynchronous motor, fixed pump and load were set up.
本文对变转速泵控马达液压系统进行了仿真分析，建立了系统中变频器、异步电动机、定量泵、马达以及负载的数学模型。
Appropriate pitch curve designing is a key of regularly working for non-circular planetary gear mechanism with variable center distance which can be used in low speed high torque hydraulic motor.
合理的节曲线设计是可用于低速大扭矩液压马达的变中心距非圆行星齿轮机构正常工作的关键。
This paper presents the methods of transfer function analysis and engineering design for variable frequency adjustable speed system of induction motor supplied by current source inverter.
本文提出了一种异步电动机电流型变频调速系统传递函数的分析及工程设计方法。
A driven method of extruders by variable speed switched reluctance motor drive is put forward.
介绍了用开关磁阻调速电机驱动挤出机的方法。
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 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。
Variable frequency and variable speed motor system is of high reliability, fault-tolerant capability and high intelligence.
变频调速电动机系统具有高可靠性和高容错能力，具有高智能。
An integrating device of variable frequency and speed-down is an important driving and control unit which combines a variable frequency module, a variable frequency motor and a retarder.
变频减速一体机是将变频模块、变频电机和减速机有机集成一体的重要传动控制单元。
But the emphases of the design for an inverter-driven induction motor are the efficiency, power factor, elevated temperature in the variable speed range, and dynamic response.
而变频调速电机的设计重点是在调速范围内的效率、功率因数、温升，以及动态响应性能等。
The pumping unit supplying the tested models consists in one horizontal shaft centrifugal pump driven by a variable speed D. C. motor itself controlled by a thyristor speed drive.
供给水轮机模型试验的水泵由一个卧式离心泵组成，由一个整流器自控制的变速电机带动。
The pumping unit supplying the tested models consists in one horizontal shaft centrifugal pump driven by a variable speed D. C. motor itself controlled by a thyristor speed drive.
供给水轮机模型试验的水泵由一个卧式离心泵组成，由一个整流器自控制的变速电机带动。
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