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.
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.
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.
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.
机床电力拖动系统采用集成电路实现脉宽调制方式调速用IGBT管驱动电动机。
This article presents the application of IGBT-PWM regulating speed system in machine tool's electric drive.
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.
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.
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.
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.
三相干式变压器结构简单、使用方便、容易维修，在工厂中得到广泛应用，在电力拖动控制系统中要根据实际需要进行选择。
Three-phase dry type transformers are featured by simple construction, easy use and convenient maintenance and used as required by electrical drive systems.
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.
其拖动系统采用电力交流传动。
Electrical AC drive is adopted as the drive system of Rotor Test Bed.
电力拖动自动控制系统。
电力拖动自动控制系统。
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