电网

词组短语

electric network · electrified wire netting · live wire entanglement · power grid

与电网相关的网络例句 [注：此内容来源于网络，仅供参考]

On the basis of the analysis to the short circuit malfunction in domestic underground high voltage power network the paper deeply studied the relevant protection principle and the approach for improving the sensitivity and reliability of short circuit protection in underground high voltage power network designed the new type computerizable protection scheme of selective and rapid short circuit in underground high voltage power network with computer communication and logic identification technology Computer .

在分析我国井下高压电网短路故障的基础上，深入研究相关的保护原理及提高井下高压电网短路保护灵敏度和可靠性的方法，设计出新型的利用计算机通信与逻辑识别技术的井下高压电网微机选择性速断短路保护方案，将微机保护应用于煤矿井下高压电网，通过多机通信，逻辑判断判定线路故障段，从而做到快速的，有选择性的切断故障线路，避免煤矿井下高压电网因越级跳闸而造成大面积停电。

The main contents of this report include:(1) I nvestigation and analysis of the current status and characteristics of economic development, electric power consume and electric load in North China, Northeast China, Northwest China, East China, and Central China from 2000 to 2004;(2) Indexes and contrast analysis of major power networks load characteristic in China;(3) Analysis of Major effect factors for load characteristics, including development level and structure of economic, structure of electric power consumption, geographical and climatic environment, DSM, electrovalence, load shedding and so on;(4) Change trend analysis of major power networks load characteristic in China;(5) Target forecast of major power networks load characteristic in China in the tenth five-year plan;(6) Main conclusions and suggestions.

主要内容包括：(1) 2000 ～ 2004 年华北、东北、西北、华东、华中五大电网经营区域经济发展现状及特点、用电现状及特点、电力负荷特性现状调研分析；(2)我国主要电网负荷特性指标对比分析；(3)影响我国负荷特性的主要因素分析，包括经济发展水平及经济结构、用电结构、地理环境及气候因素、需求侧管理、电价拉闸限电等对电网负荷特性的影响分析；(4)我国主要电网负荷特性变化趋势分析；(5)"十一五"期间我国主要电网负荷特性指标预测；(6)主要结论及建议。

In this paper the impacting extent of equivalent inductances of transmission lines and transformers as well as that of high voltage shunt reactor on GIC level evaluation by DC equivalent model of power network are analyzed, and by means of simulation the impacts of transformer winding connection modes and structure of transformer cores on equivalent inductance of transformer are researched.

文章分析了线路等效电感、变压器等效电感和高压并联电抗器等效电感对采用电网直流等效模型评估GIC水平所产生误差的影响程度，通过仿真计算分析了变压器绕组联结组别和变压器铁心结构对变压器等效电感的影响，最后针对我国电网的特点，提出了用于评估超、特高压电网电磁感应电流水平的电网等效模型。

The concrete work and main contribution are as follows:(1) The index indicating transfer capability homogeneousness is defined, and the new terms like homogeneous grid, grid according with economic flow are put forward. These new concepts describe the degree in which transfer capability is utilized, and they provide the standard for ideal grid whose transfer capability and power generation dispatching economy are in phase. So, new idea is introduced in transfer capability analysis.(2) The multi-objective function with generation cost and transfer capability homogeneousness weighted is constructed. The relationship between system existing generation dispatching and transfer capability is revealed through comparative analysis between security economic dispatch and security homogeneous dispatch, and the variation rule analysis between generation cost and transfer capability homogeneousness with the change of weighting coefficient.(3) Example analyses demonstrate that the difference between specific power system with ideal instance can be identified effectively using the above concepts and method.

具体工作和贡献主要体现在：(1)定义了衡量电网输电能力均匀性分布的指标，提出均匀电网、符合经济流电网的新概念，以描述电网输电能力被利用的程度，并给出输电能力和发电调度经济性相协调的理想电网标准，在输电能力分析评判领域引入了新观点；(2)构造了发电费用与输电均匀性加权的多目标函数，通过对安全经济调度与安全均匀调度的对比分析，以及权系数变化过程中发电费用与输电均匀性的变化规律分析，揭示了系统现存发电调度与输电能力之间的依赖关系；(3)大量分析表明，利用上述概念和方法可有效识别系统在特定模式下与符合经济流电网的偏差程度。

For the current situations that electrical power operation environment is more complex, the power organization reformconstantly, the electricity market is formed step by step, the current electrical equipment is outdate, and for the so many problems that lowenergy efficiency, poor power quality, less interaction between customers and power grid company, this paper defines the smart grid that is suited to China's power grid situation, and summarizes five features for the smart grid such as self-healing, interactive, optimization,compatibility, integration and the differences between smart grid and traditional grid, then introduces the four systems of smart grid and two foundations before building the smart grid, and finally concludes that smart grid is the inevitable result for the economical and technological development.

针对目前电力运行环境的日趋复杂、电力体制改革的不断前进、电力市场的逐步行成、现有的电力设备亟待更新、能源利用率低、电能质量差、用户与电网公司交互作用少等诸多问题，讨论了适合中国电网情况的智能电网的定义，总结出了智能电网自愈、互动、优化、兼容、集成五大特点，概括出了智能电网和传统电网的区别，并详细介绍了构成智能电网的四大体系和建立智能电网的两大基础，最后总结出智能电网是经济和技术发展的必然结果，我国应加快智能电网的研究发展。

The method employs characteristic values such as hinge node voltage at dividing place between the large district grid and the provincial grid and tie line reactive power and so on as a coordinated variable of wattless control of the large district grid and the provincial grid, and real-timely calculates an optimal set value of the coordinated variable in the large district grid which is sent down to the provincial grid via wide area communication. In the coordinated control of the provincial grid, the method can not only realize the control object of original grid, but can also realtimely track the optimal set value of the coordinated variable given by the large district grid.

本方法选择大区电网与省级电网分界处枢纽节点电压和联络线无功等特征量作为大区电网与省级电网无功控制的协调变量，通过大区电网的无功优化，实时计算出大区电网中协调变量的最优设定值，该设定值通过广域通信下发到省级电网，在省级电网的协调控制中，除了满足本级电网的控制目标外，还实时跟踪由大区电网给出的协调变量的最优设定值。

The impacts of the ultra high voltage AC/DC grid on Fujian power grid are analyzed in this paper. The security and stability of Fujian power grid and the interactions among the AC and DC system are studied under the single/double faults of EHV AC transmission lines and monopolar/bipolar block faults of EHVDC system near converter station.

中文摘要：分析了交、直流特高压电网对福建电网安全稳定的影响，研究了特高压交流电网、特高压直流系统发生故障时福建电网的安全稳定性以及受端换流站附近交流电网单一或严重故障对直流系统的影响及系统安全稳定水平。

Scientific and reasonable grid planning has a direct relationship with safe and reliable operation of the grid, power supply reliability for the user, and operational flexibility of the system. The 220 kV substation power supply capability evaluation based on analysis of the supporting ability of 35 kV girds was applied to the grid pre-planning management information system, which enables pre-evaluation for the gird in planning to search for defects and make improvement.

电网的科学合理规划将对今后电网的安全稳定运行、保证用户供电的可靠性和系统运行的灵活性带来直接影响，在电网规划前期管理信息系统这一平台上，运用基于35kV网架支援能力分析的220kV变电站供电能力评估的方法，即可对规划中的电网进行预先评估，通过评估的结论，查找电网存在的不足以求持续改进。

The 220 kV substation power supply capability evaluation based on analysis of the supporting ability of 35 kV girds was applied to the grid pre-planning management information system,which enables pre-evaluation for the gird in planning to search for defects and make improvement.

电网的科学合理规划将对今后电网的安全稳定运行、保证用户供电的可靠性和系统运行的灵活性带来直接影响，在电网规划前期管理信息系统这一平台上，运用基于35 kV网架支援能力分析的220 kV变电站供电能力评估的方法，即可对规划中的电网进行预先评估，通过评估的结论，查找电网存在的不足以求持续改进。

With the development of power electronics, nonlinear loads are widely used in power system, which bring about serious harmonics pollution and big current of reactive power. In the same time, the load including high-tech and high precision is developing rapidly, which ask for high quality power. In the other hand, the power net is becoming bigger, the disturbers between different parts of the power net becoming more serious.

随着电力电子技术的发展，越来越多的非线性负载投入电网中，谐波和无功对电网的污染越来越严重，同时，高精密负荷的比重迅速增大，对整个电网电能质量要求越来越高；另一方面，电网的并网规模越来越大，电网各部分之间的干扰也不断加重，这些都严重的威胁着用户电能质量和电网的运行安全。

与电网相关的网络解释 [注：此内容来源于网络，仅供参考]

load density of distribution system：配电网负荷密度

load density method 负荷密度法 | load density of distribution system 配电网负荷密度 | load dump 甩负荷

Distribution system：电网

一、您在来信中强调了配电网(Distribution System)和输电网(Transmission System)的区别,指出"广大的菲律宾用户还需要通过菲律宾各地的配电网才能用上电,他们只能从菲律宾当地供电企业处买电,中菲合资的菲律宾国家电网公司受法律管制,

Distribution system：配电网

一、您在来信中强调了配电网(Distribution System)和输电网(Transmission System)的区别,指出"广大的菲律宾用户还需要通过菲律宾各地的配电网才能用上电,他们只能从菲律宾当地供电企业处买电,中菲合资的菲律宾国家电网公司受法律管制,

System fault：系统故障电网故障

system fault 系统故障 | system fault 系统故障电网故障 | system flow chart 系统操作程序图

grid control center：电网控制中心

834. grid control 棚极控制 | 835. grid control center 电网控制中心 | 836. grid control unit 栅控装置

intercity network：城市间电网

intercity circuit 城市间通信电路 | intercity communication 市际交通 | intercity network 城市间电网

interconnecting ties：电网联络线

coercive measure 强制措施 | interconnecting ties 电网联络线 | water missile "水下对水下"导弹

interprovincial power networks：跨省电网

interprovincial highway 省际公路 | interprovincial power networks 跨省电网 | interproximal 邻间的

intertie：(可将太阳能回馈至电网)

"interface","分界面" | "intertie","(可将太阳能回馈至电网)" | "innovative","创新的"

electric network protection：电网保

electric mule 电力牵引车 | electric network protection 电网保 | electric network 电力网