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。

Variable speed motor drive ( VSMD ) is used to control the electrical machine by modifying the frequency of its output voltage .

通过改变变频器的输出电压可以控制被拖 电动机 的 转速。

Analysis Speed / Torque Characteristic of the YY / Y and YY / Δ Variable Pole Speed Regulating Asynchronous Motor

YY/Y及YY/Δ 变极 调速异步 电动机机械特性分析

This paper presents an analyzing method of predicating the performances of variable pole adjustable speed induction motor . It provides theoretical basis for suitable design of variable pole adjustable speed motor .

本文提出了一种预测变极调速异步电机性能的分析方法，为合理设计 变极 调速 电机提供了理论依据。

Review for Development of a Double Salient Variable Speed Permanent Magnet Motor

双凸极永磁 电机的发展及现状

The Finite Element Calculation of the CTD Variable Speed Motor Eddy Fields

CTD 调速 电动机涡流场的有限元计算

Use switching magnetoresistance variable speed motor driving system for energy saving ventilators and water pumps

开关磁阻 调速 电机驱动系统用于风机和水泵的节能

Optimum Generation of Hybrid-driven Machine Based on Converse Kinematics Analysis DC reversible variable speed motor

基于逆运动学分析的混合驱动机构的优化综合直流可逆 变速 电动机

Driven method of extruders by variable speed switched reluctance motor drive

开关磁阻 调速 电机驱动挤出机的方法

Digital Controller ICs Reduce Complexity of Variable Speed motor Drives

数字控制器IC降低 变速 电机驱动的复杂性

The core of electric propulsion system is variable speed system of propulsion motor . According to the different controlled objects modern AC variable speed system can be sorted into two kinds-Asychronous machine variable speed system and Sychronous machine variable speed system .

船舶电力推进系统的核心是主推进 电动机 的 调速 控制系统，根据被控对象的不同，现代交流调速系统可分为异步电动机调速系统和同步电动机调速系统。

Operation analysis on a cooperating variable speed system concerning commutatorless motor and induction motors

无换向器 电机与异步电机协同 调速系统的运行分析

The techniques of generating optimal pulse width modulation waveforms applied to variable speed AC motor drive systems

交流 电机控制中的优化PWM波生成技术 PWM波形的计算机仿真

Computer Aided Analysis and Design for Current Source Inverter Circuit of Variable Speed Induction Motor Drives

电流型逆变器异步 机 调速系统主回路计算机辅助分析与设计

Design Research of a three-rotor single phase variable voltage and speed motor

三转子单相 调压 调速 电动机的设计研究

The operating frequency of variable frequency adjustable speed motor is variable and the traditional electromagnetic calculation of induction motor is done at rated frequency so the traditional calculation program is not suitable for the calculation of motor under the conditions of low frequency and high frequency .

由于 变频 调速 电机的运行频率是可变的，而传统的感应电机的电磁计算程序都是在电机额定频率下进行计算的，并不完全适用低频和高频时的情况。

With a team of proficient engineers MPCL is able to provide consulting and installation services for all types of high voltage substations as well as variable speed motor drive systems .

拥有一支专业工程师的队伍，明电太平洋有能力为所有高压电器安装及 马达 变速系统提供顾问及安装服务。

This variable speed switch reluctance motor drive can change the forming equipment to be simple in structure reliable in working and content in numerical control .

证明开关磁阻 调速可使成形设备结构简单，运行可靠，满足数字化控制的需求。

In this paper GTR Base-drive circuits on PWM variable frequency and variable speed systems for induction motor drive are studied .

本文介绍了为异步 电动机PWM变频 调速系统而研制的GTR基极驱动电路。

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。

Study on Inverse Kinematics and Configuration Optimization for Reconfigurable and Modular Robots DC reversible variable speed motor

可重构模块机器人逆运动学与构形优化设计方法研究直流可逆 变速 电动机

Design of High Efficiency Fan for Large and Medium Inverter-driven Variable Speed Motor

大中型 变频 调速 电动机的高效风扇设计

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。

Energy conservation and other effects after the use of 6 centrifugal pumps for an atmospheric and vacuum distillation unit with variable frequency and speed motor are expounded .

介绍了某常减压蒸馏装置6台离心泵采用 变频 调速 电动机 调速后，收到的节能及其它效果；

Sample analysis of variable speed switched reluctance motor The advantages of the switched reluctance variable speed machine is given .

开关磁阻 调速 电动机 运行实例分析给出开关磁阻调速电机的优点。

It has been proved by theory and practice that variable speed motor drive can at least save electric power more than 20 % even to 70 % in some situations .

理论分析和实际应用都表明，如果 采用 调速 技术，至少可节约20%以上的电能，有些情况下甚至可节电70%。

Principle and Linear Analysis of Static Characteristics of a Doubly Salient Variable Speed Permanent Magnet Motor

双凸极 变速永磁 电机 的 运行原理及其静态特性的线性分析

With the raising and growing of the AC Variable Speed theory asynchronous motor accesses to a wide range of applications in the centrifuge field .

随着交流 调速理论的发展，异步 电动机在离心机领域获得广泛的应用。