基于模糊层次分析法的我国电气化水平综合评价

我国逐步推进再电气化水平,对现阶段我国各地区电气化水平进行综合评价十分必要。通过分析再电气化战略实施的必要性,构建了再电气化水平评价指标体系。利用模糊层次分析法,结合多维度数据,对我国各地区电气化水平进行测算。根据二级指标从4个维度进行评分,得出电气化水平综合评价。对比分析了制约各区域电气化水平发展的因素,为针对性提高其电气化水平提供了建议。     

基于3E能源优化模型的中国电气化进程研判及定量分析

能源生产消费的电气化既能够承载新能源高效转化,又可以推动能效总体水平提升,是全球能源转型的战略选择。在明确电气化推动能源转型的基础上,分析中国持续提升电气化水平的基本条件,通过国际比较研判了未来全球电气化进程趋势,采用能源电力规划模型以及能源消费预测模型,研究提出了中国再电气化发展战略路径,为推动中国能源转型、有效促进电气化发展提供了决策支撑。     

河南境内电气化铁道注入电网谐波实测分析研究

通过对河南内电气化铁道牵引注入电网谐波实测数据的计算分析，得出各牵引站超出国家规定标准的程度，掌握了电气化铁道营运以后的对河南电力系统影响的第一手基础资料，文中对电气化铁道引站注入系统的谐流电流的变化规律以及牵引站内无功补偿兼滤波电容器的滤波效果加以分析和讨论，给出结论。     

中外电气化发展历程探讨

论述了电气化的涵义与分析指标,分析了美国、日本、韩国和中国的电气化水平变化历程,以及主要行业电气化水平差异,用因素分解法分析了各国电气化水平提升的原因,指出了未来中国电气化水平的发展趋势,提出了相关的措施建议.     

优质服务获得“意外惊喜”

编辑同志: 衡量一个国家经济水平的高低,主要看这个国家实现电气化水平的程度,从某种意义上讲,电能不仅是一种效率高、绿色洁净、安全的能源,更是现代化生活的标志,体现着现代人的生活水平质量。     

新能源发展展望

发展新能源对于解决当今世界严重的环境污染问题和资源枯竭问题具有重要意义,被认为是继蒸汽机化、电气化、信息化之后改变全球发展的第四次技术革命。本文介绍了核能、太阳能、风能、地热能等新能源的技术发展趋势以及世界主要国家新能源的发展概况,通过对新能源发展动因的分析,揭示了发展新能源的重要性。     

新能源发展展望

发展新能源对于解决当今世界严重的环境污染问题和资源枯竭问题具有重要意义,被认为是继蒸汽机化、电气化、信息化之后改变全球发展的第四次技术革命。本文介绍了核能、太阳能、风能、地热能等新能源的技术发展趋势以及世界主要国家新能源的发展概况,通过对新能源发展动因的分析,揭示了发展新能源的重要性。     

大力发展节油洁净的电气化交通

从我国交通,城市化、能源、环保等多方面统一、协调,可持续发展出发,建议应大力发展节油洁净的电气化交通.阐述了发展电气化交通的重要性,对于不同阶段的电气化交通技术,建议:①继续大力发展已产业化的电气火车与城市轨道交通,迎接国家交通体系的大发展.②发展电动汽车技术,尽早实现产业化.③积极推进新型磁浮交通的发展,开拓长大干线与城市交通两方面的实用化与产业化.     

新能源发展展望

发展新能源对于解决当今世界严重的环境污染问题和资源枯竭问题具有重要意义,被认为是继蒸汽机化、电气化、信息化之后改变全球发展的第四次技术革命.本文介绍了核能、太阳能、风能、地热能等新能源的技术发展趋势以及世界主要国家新能源的发展概况,通过对新能源发展动因的分析,揭示了发展新能源的重要性.     

农村电气化与农村现代化建设

农村电气化与农村现代化建设吴江市政府经济研究中心叶飞国家原能源部在农电（１９９３）４４号文中，第一次授于江苏吴江、无锡和浙江桐乡、绍兴、嘉善、海盐、余杭、鄞县、余姚、平湖、德清１１个县（市）农村电气化县的称号。农村电气化是农村现代化的重要组成部分。根...     

对电气化铁路所产生谐波的研究

首先介绍了电气化铁路的用电特性,然后给出了电气化铁路的谐波特点。根据电气化铁路的供电特性给出了电铁产生谐波污染的原因,随后提出了一些治理谐波污染的措施和方法,最后为从根本上治理谐波污染提出了一种新的方案PWM整流-斩波取代现在所用的晶闸管相控整流桥。     

Soviet electrification: the roads not taken

Drawing on material presented in greater detail in his book The Electrification of Russia, 1880-1926 (1992), the author discusses the history of electrification in Russia and details the formation of the State Committee for the Electrification of Russia (GOELRO). GOELRO's plan for using a network of regional stations controlled by the Soviet government is described. A discussion on why the Soviet state favored large-scale electrification instead of alternatives that promised more immediate economic and social returns is given. GOLERO's aim to use technology to transform a backward country into a modern, Communist state is also discussed     

新农村电气化村典型供电模式

为推进新农村电气化建设,提高农村配电网建设水平,以《新农村电气化建设实施纲要》和《新农村电气化标准体系》为依据,在充分调研、多方征求意见的基础上,研制、编写了新农村电气化村典型供电模式。根据经济水平将新农村电气化村划分为A,B,C等3类,电气化村的典型供电模式相应分为A,B,C等3类。另外,根据村的建筑布局,将村分为多层、联排和分散居住3类。在此基础上,有针对性地提出了10种电气化村典型供电模式,其中:A类3种,B类3种,C类4种。研究成果已在新农村电气化村建设中广泛应用,效果明显。     

轨道交通电气化专辑主编评述

轨道交通列车牵引系统控制性能与供电质量提升是电气化铁路发展永恒的主题,轨道交通电气化是实现铁路性能提升、多拉快跑、绿色高效的必由之路,以电力电子、电机驱动、现代控制与信息技术为核心的科学技术推动了轨道交通电气化的快速发展.近年来,随着新型电力电子器件、先进控制技术、智能检测与健康诊断理论的发展,功率器件应用及其可靠性评...     

通信设备带电清洗技术探讨

带电清洗技术能有效地提高通信设备的维护保养水平,使之能够经常处于最佳状态,发挥出应有的功效。介绍了通信设备带电清洗的原理和工艺流程,探讨了带电清洗工作对通信设备的影响,并结合工程实例总结了带电清洗工作应注意的几个问题。     

电气化铁路对电网的影响及对策

首先从电气化铁路接触网的供电方式、牵引变压器的接线型式、电力机车的用电特性、无功补偿的方式等几个方面叙述了电气化铁路的用电特征。然后分析了电铁产生的谐波、负序、负荷波动的特点,及其对电网的电容器、继电保护、电能计量等的影响。并就减少电铁谐波、负序,减轻电铁对继电保护、电能计量的影响提出一些治理措施。最后从电力部门角度,提出针对电铁污染所应采取的一系列对策。     

电气化铁路牵引负荷试验软件开发与应用

介绍了为在电气化铁路牵引负荷试验中减少人工抄表的工作量,提高数据处理的效率,在电气化铁路原有远动系统基础上开发的电气化铁路牵引负荷试验数据处理软件。在介绍电气化铁路牵引负荷试验需求的基础上,着重介绍了该软件的整体结构和数据流分析,软件所解决的问题,以及软件的具体实现。试验证明了该软件的可行性。     

Rural electrification: the long struggle

Bringing the benefits of electricity to farms and rural areas was mostly a dream in the early 20th Century. Many obstacles had to be overcome before the widespread use of rural electric power became practical. Today, many people in the United States have the mistaken idea that rural electrification suddenly appeared in 1935 when the Rural Electrification Administration (REA) was established by executive order and the Rural Electrification Act of 1936 was subsequently passed. This impression is unfortunate for two reasons. First, it fails to recognize the aspirations and contributions of two full generations of electrical engineers, who worked in the field prior to 1935; and second, it ignores significant progress made in other geographical areas of the world. This article explores some of this earlier history, then presents material as prepared by members of the Rural Electric Power Committee (REPC) of the IAS about the history of their committee     

Farm electrification: A road-map to decarbonize the agriculture sector

Electrification is a promising approach to most carbon-emitting sectors of economic sectors of human activities such as transportation and industry sectors. Electrifying the machinery and different systems used in a farm can mitigate the carbon footprint of the agriculture sector if renewable energy sources are coordinated with the agricultural loads appropriately. This paper presents a road-map that: 1) presents greenhouse gases emitting activities in the food supply chain, 2) the potential impact of vertical farming on the agriculture sector, 3) discuss the carbon footprint of different activities in the food supply chain, and 4) presents a road-map to decarbonize greenhouse gas emitting activities in farms. This paper estimates that electrification of farms in an appropriate process with renewable energy resources can decrease the carbon footprint of farming 44–70% depends on the type of the farm.     

A physicochemical explanation for flow electrification inlow-conductivity liquids in contact with a corroding wall

Electrification during the flow of insulating liquids in pipes has been studied for a long time. Its dependence on flow parameters and pipe geometry has been modeled for many different cases and is quite well known. Even though different laws of flow electrification have been obtained empirically in terms of the pipe length, a complete analysis taking into account the electrochemical reactions at the pipe wall-liquid interface is lacking. In this paper, the authors present a model of the process in the case of a corroding wall and a liquid containing additives or impurities partially dissociated into positive and negative ions. They treat the case of laminar flow and an interfacial reaction whose conversion is small compared to the concentrations of positive and negative ions in the bulk solution. They compute the evolution of the space charge density in terms of the axial and radial coordinates, and the flow velocity. The boundary conditions on the wall are deduced from the kinetics of the wall surface reactions with the additives. Thus, analysis of these chemical reactions allows computation of the net flux of electrical charge from the wall to the liquid. This flux is a function of the axial distance along the pipe and the mean flow velocity. Finally, comparison is made between the authors' model and experiments on flow electrification for hydrocarbons liquids