通过高压直流电电缆输电相同距离，损失只有2- 3%，这使得在最便宜的地方发电，再输电至最需要的地区去变得更易实现。
HVDC cables can transmit electricity over similar distances with losses as low as 2-3%, making it easier to generate electricity where it is cheapest and send it to where it is needed.
由于在传输过程中采用高压直流电缆输送的损耗要比传统交流电的损耗小得多，因此采用交流电远距离传送电力很不划算。
Energy losses on DC lines are far lower than on the traditional AC ones, which make transmission of energy over long distances uneconomic.
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.
现在有人开始质疑这一标准的适用性，因为在远距离输电的情况下，采用高压直流(HVDC)要比高压交流损耗小。
Some people, however, question that standard because over long distances high-voltage DC lines suffer lower losses than AC.
TransCanada公司亦提出要铺设2200英里的高压直流电线路来输送自蒙大拿州和怀俄明州的风能到南部拉斯维加斯及更远。
And TransCanada, Inc., is proposing 2, 200 miles of HVDC lines to carry wind energy from Montana and Wyoming south to Las Vegas and beyond.
比起交流输电和本地发电，轻型高压直流输电系统不仅具有成本优势，它也对提高交流电网电能质量提供了新的途径。
Compared to the ac Transmission and local power generation, HVDC light system is not only cost advantages, it also exchanges to enhance ac power quality for a new approach.
因此对高压直流输电系统及其控制器参数优化的研究是十分必要和重要的。
So it's quite necessary to study HVDC system and the optimization of parameters of the control system.
ABB与四方的合作关系可追溯至2000年，我们曾在三峡高压直流输电项目中一起合作并在灵宝项目一起中标，展开了全面合作的新篇章。
ABB and Sifang relationship and cooperation dates back to year 2000 and we have successfully worked together in the Three Gorges HVDC projects, Lingbao HVDC project among others.
直流高压电源输出电压和电流的稳定性，对产生稳定的电晕电场极为重要。
The stability of voltage and current output from HV DC power supply is very important for generating a stable HV electric field.
直流高压电源输出电压和电流的稳定性 ，对产生稳定的电晕电场极为重要。
The stability of voltage and current output from HV DC power supply is very important for generating a stable HV electric field.
同时，直流接地极关系着高压直流输电系统的安全运行，对于附近的交流系统也有影响，其中的一些问题也十分值得研究。
At the same time, problems of the DC grounding system are valuable because it is not only significant in HVDC operation but also affects the AC system nearby.
轻型高压直流输电是在电压源换流器和绝缘栅双极晶体管基础上开发出来的一种新型输电技术。
The light HVDC transmission is a new power transmission technology based on the voltage source converters(VSCs) and IGBT power semiconductors.
高压直流试验是换流变压器的例行试验之一。
HVDC test is one of routine tests on the converter transformer.
提出了一种新型的红外式的智能直流高压发生器。
A new type of infrared intelligent DC high voltage generator was introduced.
应经常检查高压直流电源内电流继电器，时间继电器的整定值是否正确，控制是否灵敏。
We should always check the high voltage DC power supply within the current relay, time relay setting value is correct, control is sensitive.
800千伏特高压直流变压器是实现远距离、大容量输电的特高压输电线路的关键设备。
The 800 kV UHVDC transformer is a key component of ultrahigh-voltage power links that deliver large amounts of electricity over very long distances.
高压直流输电系统中最关键的部分是控制保护部分。
Control and protect section is the most pivotal section in HVDC system.
利用自制直流高压静电场装置对啤酒酵母进行杀菌实验研究。
In this sterilization experiment research, beer yeast was treated by high voltage static field device of direct current.
文中介绍了由直流高压电路、脉冲放电电路和一级脉冲磁压缩电路组成的铜蒸气激光器电源。
The supply power of copper vapor laser (CVL) consisting of DC high voltage circuit, pulse discharge circuit and one stage magnetic pulse compression circuit is introduced here.
提出了一种新的故障跟踪估计器来诊断高压直流输电(HVDC)系统中的故障。
A novel fault tracking approximator for fault diagnosis scheme of high voltage direct current transmission (HVDC) system is proposed.
它在高压设备电气绝缘测试、直流高压输电和静电设备上均有良好的应用前景。
It can be used in fields such as insulation test of high voltage equipments, DC power transmission system, static electrical equipments.
本文阐述了一种用于核探测器的新型直流高压电源的原理及性能特点。
The operation and performances of a new type direct current high voltage power supply are described.
特高压直流技术在中国和印度这样国土辽阔的国家尤其适用，因为这些国家的电力使用中心通常都远离能源来源地区。
It is particularly suitable for large countries like China and India, where centers of high power consumption are often located far from the energy sources.
另外宣布的是，ABB还被选中为两座换流站提供800千伏特高压直流变压器设备。
As separately announced, ABB has also been selected to supply the 800 kilovolt (kV) UHVDC transformers for both converter stations.
该电源包括直流电源、高压分压器、和火花间隙开关。
The power contains the DC power supply, high voltage divider and spark gap switching.
超高压直流输电技术特别适合类似中国这样领土广阔的国家，这些国家需要电力的中心区域一般离发电站都较远。
UHVDC is particularly suitable for vast countries like China, where the centers that need power are often located far from power sources.
直流高压电源输出电压和电流的稳定性对产生稳定的高压复合电场极为重要。
The stability of voltage and current outputted by HV DC power is important to generate stable high-voltage electric field .
因此，必须深入研究提高的稳态和暂态电压应力对特高压直流换流站主设备设计产生的影响。
Therefore the impact of increased steady state and transient voltage stresses on the design of the main equipment for UHVDC stations has to be careful.
主要阐述了高压直流输换流站用直流滤波电容器的特点和设计参数的选择。
This paper introduced the characteristics and parameter selection of DC filter capacitor used in HVDC transmission system.
主要阐述了高压直流输换流站用直流滤波电容器的特点和设计参数的选择。
This paper introduced the characteristics and parameter selection of DC filter capacitor used in HVDC transmission system.
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