电网

In the HVDC engineering, it will produce a series of harmonic which than the fundamental frequency of power grid, and the harmonic have adverse effects with the power systems, equipment and power grids.

中文摘要：摘要：在高压直流输电工程中会产生一系列大于电网基波频率的谐波，而谐波的存在会对电力系统、设备及电网造成不良影响。

The main characteristic of this ice storm and the lessons learned from it are presented.

本文总结了冰雪灾害特点和对江西电网的影响，反思了电网规划、设计以及恢复等方面存在的问题。

This fluctuant power will affect the power quality of the imbedded grid, such as voltage fluctuation and flicker.

这种不稳定的功率注入电网，将对电网的电能质量造成影响，引起电压波动和闪变问题。

The tests and commissioning results showed that this incomer and coupler automation system, designed with the automation system design platform, had more advantages such as simple configuration, short design periods, useful, easy operation and maintenance,reliability. And this system can completely meet the logic interlock for incomer and coupler in low-voltage system.

现场安装调试及运行结果表明，利用本文建立的设计平台开发的低压配电网一次开关元件操作自动控制系统结构简单，开发周期短，实用性好，现场调试简便，易于操作和维护，可靠性高，能满足国内低压配电网低压进线和母联断路器智能控制系统的要求。

Therefore, a new theory of space vector reactive power is presented in this dissertation, where instantaneous reactive current and instantaneous active current are defined, based on the new theory.

作为治理电网污染、提高电网稳定性和改善电能质量的一项关键技术，有源滤波技术已成为电力电子技术应用中的一个比较新的研究课题。

The instantaneous reactive current theory is suitable for harmonics detection. Finally, this equipment was successful applied in power substation.

本文最终研制完成了这套煤矿电网谐波综合治理装置，并成功实现了该装置在黑龙江省某煤矿电网的挂网运行。

With the rapid development of power system and the interconnections of some power systems, stabilization monitoring and control of power system get more and more important.

随着我国电力系统发展和大区电网互联，电网的安全稳定控制越来越重要。

The company is the company of modern electrified wire netting that gives priority to a net with 500 kilovolt and 220 kilovolt electrified wire netting, existing employee makes an appointment with 80 thousand person.

公司是以500千伏和220千伏电网为主网的现代化电网公司，现有员工约8万人。

Rated voltages in transmission and subtransmission levels for this power system are 400,230, and 85 kV.

该电力系统主电网和子电网各级中传输的电流额定电压为400、230和85千伏。

On the basis of analyzing and researching the reason of the current leakage with the underground D.

本文分析研究了煤矿井下直流架空线电网产生漏电的原因，总结了漏电保护研究的现状，并在此基础上阐述了基于附加直流电源的煤矿井下直流架空线电网漏电保护的原理。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。