从曲柄压力机的工作性质出发，分析了其电力拖动的特点以及电机功率的选择问题。
The characters of the electric drive of crank shaft press were studied from the viewpoint of the press working behavior.
文章运用电力拖动的基本原理对港口门机生产实际中出现的重载溜钩现象进行了详细准确的分析。
This paper gives detailed and accurate analysis to hook gliding at heavy load for gantry crane with the basic principle of electric haulage.
在线测重问题，实质上是机械设计理论、电力拖动自动控制、计算机方法学的统一。
On-line weight measuring is essentially a complex and comprehensive issue concerning mechanical design methodology, automation of electric drive and computer technique.
利用该方法还能对非常复杂的电路、电力电子变流系统、电力拖动自动控制系统进行建模仿真。
This approach can also be used to model and simulate some very complicated circuits, power electronics conversion circuits, electric driven automatic control systems etc.
电力线路的电流、电压谐波效应可以引起自同步拖动、计算机、电话等异常运行。
The current or voltage harmonic wave in power lines may cause abnormalities in self synchronization drive, computer, telephone, etc.
制动一直是电力拖动系统的重要问题之一。
The braking has been one of important problem for electric power drive systems at all times.
随着高层建筑日益增多，对高性能电梯的电力拖动系统要求越来越高，电梯专用变频器应运而生。
Elevator special inverter occurs along with the increases of buildings. It satisfies the demand of electric power drag system used in high performance elevators.
在工业生产中，需要高性能速度控制的电力拖动场合，直流调速系统发挥着极为重要的作用。
In the industrial production, the DC governor plays a very important role in the occasion of the electric drive needing the high performance speed control.
在电力拖动自动控制系统中，折算到电动机轴上的总转动惯量的数值，是系统设计的主要参数之一。
In the electric driving automatic control system, the total value of moment of inertia converted onto the motor axis is one of the main parameters for the system design.
本文介绍了电力拖动系统的自动控制和安全保护，电力拖动系统的控制原理及实现方法，安全保护的作用。
It introduces automatic control, secure protection, control principle, how to realize in electric power driving system and the function of secure protection.
在分析计算含电感电路和电力拖动系统时，要涉及感应电动势的概念。
When you analyze and calculate the induction and circuit and transmission systems, you would involve the induction electrodynamic potential concept.
本文从电力电子变流技术和电力拖动自动控制系统方面论述了利用晶闸管实现对交流绕线式电动机的调速节能问题。
This paper deals with the economic governor of ac winding motor from the viewpoint of electrical and electronic inversion technology and electrical drive automation.
分析了数控抽油机的运动规律及电力拖动系统，论述了变频调速技术在系统中的应用。应用可编程控制器(PLC)完成抽油系统的自动控制。
The movement law and electric driving system are analyzed. Variable frequency technique used in the system is discussed and PLC is used for automatic control of the pumping unit.
电力拖动滚圆机的动力系统由电动机、涡轮减速器、三角皮带及大、小皮带轮组成。
A dynamic system of the electric power driven rounding machine consists of a motor, a turbine reducer, a triangular belt, a big belt pulley and a small belt pulley.
给出了电力拖动系统的主回路电路图、PLC和变频器的外部接线图。
It presents the circuitry diagram of the main loop of electric drive system and the external wire-connection diagrams of PLC and converter.
运动方程及负载特性是“电力拖动系统”课程中的重要内容。
It is very important to teach contents of motion equation and load characteristics on the lecture electric Drive course for electrical-engineering major.
现代电动车集光、机、电化领域的最 新 技术于一体，是汽车、电力拖动、电控、化学、计算机、新能源、 新材料等工程 技术中最 新成果的集中产物。
Modern EV was centralized outcome in the newest production of auto, power drag, power control, chemistry, new energy sources, new material and computer.
《电力拖动基础》课程是我校中英双语教学课程研究的立项项目之一。
The course of Electric Power and Drives is one of the research programs of bilingual teaching in SWUN.
《电力拖动基础》课程是我校中英双语教学课程研究的立项项目之一。
The course of Electric Power and Drives is one of the research programs of bilingual teaching in SWUN.
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