该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。
The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.
使用直流电是产生静电磁场的另一个原因，例如铁路系统使用直流电，电视和计算机屏幕带有阴极放射管。
The use of DC electricity is another source of static electric fields, e.g. rail systems using DC, and televisions and computer screens with cathode ray tubes.
发动机采用高压直流电驱动，电流转换通过直流-直流转换器实现。
The motor is powered by high voltage DC supply and the current from the fuel cell system is regulated via a DC DC converter.
与阿波罗的3个电池储备和28伏的直流系统相比，猎户飞船将有6个电池的电力储存，使用120伏的直流电源分配系统。
It will hold six batteries for power storage and will use a 120V DC power distribution system, compared to Apollo’s three-battery storage and 28V DC system.
开关电源把直流电源或交流电源通过它可以获得一个稳定的直流电压源。
Switching power supply or DC power to AC power through it will be a stable DC voltage source.
因此它可以把“两倍于电源频率的直流电”进行“平滑化处理”，成为一个接近恒定的直流电。
Therefore it can be seen that it will "smooth" the "twice mains frequency DC" into a near constant DC voltage.
研制了一套基于TMS320 LF 2407的直流电机控制系统，实现了对直流电机运行的有效控制。
DC motor control system based on TMS320LF2407 is introduced, and the DC motor is effectively controlled by this system.
本文介绍一种新型的直流开关电源，该电源是一种直流电压输入，三种直流电压输出，并能够达到相当高的效率。
A new type of DC switch power which is possessed a DC voltage input and three DC voltage output, and is able to reach higher efficiency has been introduced in this paper.
对于直流电流测量﹐在电流通道串联一电流分流器﹐将电流转换成直流电压信号。
For DC current measurement, a current shunt is place in series in the current path and convert the current to a DC voltage signal.
该文首先比较了逆变器模型与直流电机模型的相似性，提出逆变器的控制可以借鉴直流电机的双闭环控制方法。
This paper compared the model of inverter and DC motor at first and proposed that the dual-loop control for DC motor can be used to that of inverter.
同时它也能引导信号(但不引导直流电)，它也经常被用在电路里的信号需要跨越两个不同直流电压之间的地方。
It also conducts the signal (it doesn't conduct DC), and is often used at other points in a circuit where the signal needs to travel between two different DC voltages.
以一道直流电路分析题为例，把常用的几种直流电路分析方法贯穿起来解答，以便读者加深对其辨析和理解。
With an analysis of a direct current circuit as an example, it can use several common DC analytical approaches to solve a subject.
文章重点阐述利用无刷直流电动机构建的井下压力闭环实验装置和以无刷直流电动机为控制核心的软件平台。
The paper places emphasis on the closed-loop system of pressure based on BLDC motor and the correlative software.
ZSN4系列直流电动机是在Z4系列直流电动机基础上开发设计的具有高起动转矩、高过载能力电机，主要应用于驱动水泥回转窑等设备。
Series ZSN4 DC motors are the new generation of Z4 Series DC motors with high starting torque and overload. Mainly used as the drive equipment for cement rotary kiln.
本文主要介绍了监测直流接触器的机械寿命试验直流电源设备在选用时注意的事项，论述了相关要求。
This article mostly introduces the adoption announcements of the life testing equipment that used in! DC contactor production surveillance, and discusses correlated requirement.
阐述了有源大功率直流标准电阻器检定直流电阻测试仪的方法，对该检定方法进行了误差分析。
The paper discussed the method of using active large-power DC standard resistor to verify DC resistance tester and analyzed its error.
开关变换器能够将一种直流电能转换成另一种或多种直流电能，是直流开关电源的主要组成部分。
Switching converter may translate one kind of DC electric power into another or more one, and is the main part of DC switching power supply.
本文是基于双闭环直流驱动原理及双闭环直流驱动系统工程设计方法，设计出应用于直流电动机的双闭环直流驱动系统。
We have designed the DC drive system of double closed loops according to the methods of the project design, which based on the DC drive regulation principle.
直流电路是电路中最基本的电路，学好直流电路这一章对《电工学》的学习有着极大的意义。
Direct current circuit is the elementary one of the circuit, so it is the most meaningful to the subject electrics to study the chapter, direct current circuit, well.
仿真结果表明所建立的并励直流电动机瞬态仿真模型是可靠的，可用于并励直流电动机各种瞬态过程的仿真研究。
At last, the simulation results are given along with conclusions that the transient-process simulation model is reliable for various simulation study of shunt-excited DC motors.
变交流电为直流电或者变直流电为交流电的装置。
The AC output must therefore be rectified, or changed to dc.
脉冲电镀和直流换向电镀在某些方面比直流电镀好，但都有各自的局限性。
Properties of coatings obtained by electroplating with pulse current and with periodic reverse direct current are better than that obtained with simple direct current.
某舰船直流电站由双绕组发电机、双绕组直流配电板、推进电机组成。
The marine DC power station includes double-winding generation, DC distributing board and DC propulsive motor.
分析了直流电路中电感和时间常数对直流电弧熄灭的影响。
The affect of inductance and time constant to DC arc extinguishing in DC circuits was analyzed.
研究气体放电对SO2和亚硫酸盐氧化的影响，采用了直流电源和交直流叠加电源进行气体放电。
Oxidation effects of SO2 and by gas discharge were studied. Powers of both DC and DC superimposed AC were used to generate gas discharge.
本文根据直流电机换向理论，给出了一种分析直流电机换向火花的方法。
Based on the theory of commutation in DC machines, this paper describes a numerical analysis method for analysis of the commutation spark.
因此，用无刷直流电动机代替永磁直流电动机作为海洋水下机器人的推进器，无论是理论上还是实际上都具有重大意义。
So, to use permanent magnetic brushless DC motor as the propeller of the ocean robot instead of the permanent magnet DC motor has a great significance both in theory and in practice.
分析了直流电动机在使用过程中常见的影响直流电机换向的几个因素。
Several common factors having influence on Commutating of DC motor during operation of it.
分析了直流电动机在使用过程中常见的影响直流电机换向的几个因素。
Several common factors having influence on Commutating of DC motor during operation of it.
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