Power shortage a serious impediment to the development of the national economy. Experience around the world shows that the pace of development of electricity production should be higher than the growth rate of other sectors, in order to promote the coordinated development of the national economy, so the electric power industry has been called an economic "vanguard."
If China's economic development is likened to the "body", then the power engineering construction is undoubtedly support the body flexible movement "bones." How can I ask a healthy body able to leave strong bones it? Continuously push forward the construction of power like the bones provides unlimited energy, plenty of energy supply is a strong guarantee for the effective functioning of the body of the function.
2012, by the world economic recovery is slow and the impact of domestic macro-control, China's economic growth continued decelerating trend, the annual GDP 51.9322 trillion yuan, calculated at comparable prices, an increase of 7.8% over the previous year. Since 2000, China's power consumption, the production rate has been higher than GDP growth, which makes electricity (production, consumption) long-term elasticity coefficient greater than 1, so that the energy consumption per unit of GDP has been difficult to come down, indicating that the strong momentum of China's electricity consumption .
"Twelve Five" will be a key period for China's development mode transformation of electricity, power companies have to seize the opportunity to accelerate the innovation and development, adhere to conservation priority, a priority to develop hydropower, optimizing the development of coal, to develop nuclear power, and actively promote new energy generation, moderate development of gas central power, local conditions to develop distributed generation, to accelerate the construction of a strong smart grid, promote the development of the equipment industry, and promote the harmonious development of the green. "Twelve Five" period, the country's electricity industry investment will reach 5.3 trillion yuan, than the "Eleventh Five" increased by 68%. Aspects of power project construction, "Twelve Five Year Plan" power investment of about 2.75 trillion yuan, accounting for 52% of all electricity investments. By 2015, the national power generation capacity will reach 1.437 billion kilowatts, an average annual increase of 8.5%. Among them, water is 284 million kilowatts, 41 million kilowatts pumped storage, coal 933 million kilowatts, 43 million kilowatts of nuclear power, natural gas power 30 million kilowatts, 100 million kilowatts of wind power, solar power 2 million kilowatts, biomass power generation and other 300 million kilowatts.
Power grid construction, "Twelve Five Year Plan" grid investment of about 2.55 trillion yuan, accounting for 48% of total electricity investment. In 2015 the country will form the north, east and central China UHV power grid as the core of the "three vertical and three horizontal" main grid. Ximeng, Mengxi, Zhangbei, North Shaanxi energy base by three longitudinal UHV transmission channel to the north, east and central China, northern coal, Southwest Water through three lateral UHV access to the north, central and Yangtze River Delta UHV power transmission ring.
The rapid development of power engineering construction and reasonable structure for China's economic development provides a strong guarantee, robust "bones" to promote the sound and rapid development of national economy.
电力不足严重阻碍着国民经济的发展。世界各国的经验表明,电力生产的发展速度应高于其他部门的发展速度,才能促进国民经济的协调发展,所以电力工业又被称为国民经济的“先行官”。
如果把我国的经济发展比作是“身体”,那么,电力工程建设无疑就是支撑身体灵活运动的“筋骨”。试问一个健康的身体怎能离得开强健的筋骨呢?电力工程建设的不断推进就像是为筋骨提供了无限的能量,充沛的能量供应是身体各项机能有效运作的有力保障。
2012年,受世界经济复苏缓慢和国内宏观调控的影响,我国经济增长延续减速态势,全年国内生产总值519322亿元,按可比价格计算,比上年增长7.8%。自2000年以来,中国电力消费、生产的速度一直高于GDP增速,这使得电力(生产、消费)弹性系数长期大于1,因此单位GDP能耗一直难以降下来,说明我国的电力消费势头强劲。
“十二五”将是我国转变电力发展方式的关键时期,电力企业须抓住机遇,加快创新发展,坚持节约优先、优先开发水电、优化发展煤电、大力发展核电、积极推进新能源发电、适度发展天然气集中发电、因地制宜发展分布式发电、加快推进坚强智能电网建设、带动装备工业发展、促进绿色和谐发展。“十二五”期间,全国电力工业投资将达到5.3万亿元,比“十一五”增长68%。电源工程建设方面,“十二五”规划电源投资约为2.75万亿元,占全部电力投资的52%。2015年,全国发电装机容量将达到14.37亿千瓦左右,年均增长8.5%。其中,水电为2.84亿千瓦,抽水蓄能4100万千瓦,煤电9.33亿千瓦,核电4300万千瓦,天然气发电3000万千瓦,风电1亿千瓦,太阳能发电200万千瓦,生物质能发电及其他300万千瓦。
电网建设方面,“十二五”规划电网投资约2.55万亿元,占电力总投资的48%。2015年全国将形成以华北、华东、华中特高压电网为核心的“三纵三横”主网架。锡盟、蒙西、张北、陕北能源基地通过三个纵向特高压交流通道向华北、华东、华中地区送电,北部煤电、西南水电通过三个横向特高压交流通道向华北、华中和长三角特高压环网送电。
电力工程的快速发展和合理的建设结构为我国的经济发展提供了有力保障,强健的“筋骨”促进了我国国民经济的又好又快发展。
电力英文翻译
系统建模图。
1显示了简化单线图的220千伏, 50赫兹, 200公里的交流输电线路的影响。
输入的220千伏输电线路是由13.8千伏同步发电机的故障水平约1000和300增值, 13.8/220 千伏变压器。
总督和励磁也仿照同机。
尽头的线连接到一个无限母线通过300增值, 220/13.8千伏变压器。
直流系统在每一个中立提供从现有的空调系统,由12个脉冲桥梁。
高通滤波器,用于在中立的连接分流的高频成分,其中包括50 ,地球。
控件中使用的直流系统主要是那些CIGRE基准模型[ 11 ]修改,以适应减少电压( 20千伏)和电源( 5兆瓦) 。
整流器控制工程在正常运行中的恒电流模式。
该逆变器在正常操作时的作品在不断γ -控制模式,并已纳入马恒流控制,以满足条件时,整流器公司经营的最低限制在 (这个实在看不懂,就没翻译)和动态条件。
电力公司英文怎么写
输电损耗的摊派和通过双边电能交易进行定价摘要本文提出一种在非稳定环境下,模拟双边电能交易,摊派输电损耗的新方法.代替常规单相溃电母线的概念,所提出的新计算方法,是利用从一具体的输电线对耦(送电和受电),计算在相互连接的电网内相关损耗的分配. 与其他现有的计算方法不同,我们的分配损耗的方法,是针对全部送电母线根据沿线路路径产生的损耗.实际的和与无功有关的损耗都可计算出来,并进行分配.可以预期,从我们的方法导出的运算点,与溃电母线的选择无关.复合计价的策略,是建议分摊每一交易损耗的成本.我们利用美国电气和电子工程师协会的30条母线的研究试验现场,论证了我们方法的效果.关键词: 模拟双边输电,损耗的分摊和定价,无功用来估算,基尔霍夫定律引言.典型的情况是,大批量输电系统的电能损耗,约占总电能产量的 4% .这些损耗积累起来的影响,每年让美国的电力公司花费数十亿美元.怎样分摊这些损耗,已成为个市场成员的主要关切点.开发一个有效的和可靠的例行程序,建立分摊的基本算法,是重要而有希望的.至今,尽管发电,输电,配电服务未成一体化,电力系统仍然或多或少地作为一个整体的系统来运行,经济可靠地向用户供电;实际上,基尔霍夫定律,仍然主导着电流怎样在电网内流动;单个发电机在控制流经特殊线路的电流方面,是很有限的.整个电网,加上发电和负荷一起,决定了输电线路的负荷.这些不希望的复杂性,使得损耗的估算变得很复杂,导致定价的颁布仍悬而未决.
急求电力专业英语文章及翻译 !!明天就要交了 求路过大神帮小弟一...
已经发给你了,这里是个备份。
====================== Often a differential equation is Fig.3.10 solved by integration. The integration may be accomplished by analytical methods or by numerical methods on a digital computer. Integration may also be performed electronically with an op-amp circuit. Indeed, op-amps were developed initially for electronic integration of differential equations.(1) An Integrator. The op-amp circuit in Fig.3.11 uses negative feedback through a capacitor to perform integration.We have charged the capacitor in the feedback path to an initial value of U1, and then removed this prebias voltage at t=0. Let us examine the initial state of the circuit before investigating what will happen after the switch is opened . Since u+ is approximately zero, so will be u_, and hence the output voltage is fixed at –U1. The input current to amplifier, Ui/R, will flow through the U1 voltage source and into the output of the op-amp. Thus the output voltage will remain at – U1 until the switch is opened.After the switch is opened at t=0, the input current will flow through the capacitor and hence the Uc will be ( 公式 ) Thus the output voltage of the circuit is ( 公式 )(3.10) Except for the minus sign, the output is the integral of Ui scaled by I/RC, which may be made equal to any value we wish by proper choice of R and C.(2) Scaling and Summing. We need two other circuits to solve simple differential equations by analog computer methods. Scaling refers to multiplication by a constant, such as ( 公式 ) where K is a constant. This is the equation of an amplifier, and hence we would use the inverting amplifier in Fig.3.3 for the – sign or the noninverting amplifier in Fig.3.5 for the + sign.A summer produces the weighted sum of two or more signals.Fig.3.12 shows a summer with two inputs. We may understand the operation of the circuit by applying the same reasoning we used earlier to understand the inverting amplifier. Since u-=0, the sum of the currents through R1 and R2 is ( 公式 )(3.11) The output voltage will adjust itself to draw this current through RF, and hence the output will thus be the sum of U1 and U2, weighted by the gain factors, RF/R1 and RF/R2 , respectively. If the inversion produced by the summer is unwanted, the summer can be followed by an inverted, a scalier with a gain of – 1. Clearly, we could add other inputs in parallel with R1 and R2. In the example to follow, we shall sum three signals to solve a second order differential equation.时常一个微分方程式是根据整合解决的 Fig.3.10 。
整合可能是完成的藉着分析方法或在一部数传计算机上的数字方法。
整合也可能电子地被一个 op-安培的线路所运行。
的确, op-安培最初为微分方程式的电子的整合发展。
(1) 一个整合之人。
在 Fig.3.11 的 op-安培的线路使用否定回应完成的一个电容器运行整合。
我们有充满感情的电容器在那回应路径到一起始 U1 的价值, 然后离开的这一 prebias 电压在 t=0. 让我们调查那起始状态线路在调查什么将会发生之前在那之后开关是打开。
自从 u 以后+ 大约是零, 因此意志是 u_, 和因此输出电压是固定的在 -U1.那输入对喇叭筒,Ui/R, 的涌流将会流过 U1 电压来源和进入 op-安培的输出之内。
如此输出电压将会保持在 - U1 直到开关是打开。
在那之后开关是打开在 t=0, 那输入现在的意志流过电容器和因此 Uc 将会如此是 ( 公式 ) 线路的输出电压是 ( 公式 )(3.10) 除为那负号告示, 输出是那整体 Ui 是依比例决定被我/RC, 可能是制造与任何的相同价值我们希望被适当的选择 R 和 C。
(2) 剥落而且总计。
我们需要其他二个线路解决类比计算机方法的简单微分方程式。
剥落提及一个常数的乘法, 像是 K 是哪里( 公式 ) 一常数。
这是喇叭筒的相等, 和因此我们会在 Fig.3.3 使用反转喇叭筒为那 - 告示或非反转喇叭筒在 Fig.3.5 为那 + 告示。
夏天农产品那重量总数二或更多 signals.Fig.3.12 表演夏天与二输入。
我们可能藉由应用相同的推论我们了解线路的操作二手的早了解反转喇叭筒。
自从 u 以后-=0, 涌流完成的 R1 和 R2 的总数是 ( 公式 )(3.11) 输出电压将会经过射频对平局这涌流调整它本身, 和因此输出将会如此是那总数 U1 和 U2, 重量被那增益因素、射频/R 1 和射频/R 2, 分别地。
如果倒转是生产在夏天之前是不必要的, 夏天能是跟随被一反转, 一有鳞的与一增益 -1. 清楚地, 我们可以把其他的输入加入平行与 R1 和 R2. 在例子中跟随, 我们将总数三信号解决一第二次序微分方程式。
电力专业英语翻译
Along with the electric power electronic installation's widespread use, in electrical network's overtone pollution condition is day by day serious. At present widely uses the overtone processing method is reduces the overtone or the filtration overtone as far as possible. The traditional filter equipment not only facility cost high invests in a big way, moreover wasted in vain has been possible to perform the use the overtone energy. The present paper proposed that one kind carries on the electrical machinery dragging using the overtone the method and the equipment, this equipment can the electrical network harmful, and present is filtered by the electric power department the overtone energy uses, uses in actuating the direct current machine. 谐波 The overtone谐波的危害 the overtone harm谐波抑制 harmonic suppression 无源滤波器 The passive filter, 基波消磁电路the fundamental wave degaussing electric circuit谐波拖动the overtone drives
请问如何学习电力方面的英语?
既然你能进入电力公司,说明你是电力方向的吧!应该了解一些电力的知识,这样的话就好办了,通过你了解的电力知识,可以查询相应的英文文献(这个会吧),简单的说比如变压器用英语怎么说transformer,网上查文献不错,还有就是买几本书,大中型书店里都有,不行可以去市图书馆什么的查查,还有网上有电力词汇什么的,问度娘吧,还是好多的!如果你不是本专业的,这也无所谓,可以从基本的看起,什么电工电子什么的,还有可以去逛逛论坛什么的也有帮助,祝你好运!好多时候还得靠自己去查资料,再说你要是问的话也应该跑到理工科电力里面去问!祝你好运吧!
电力英语水平考试的介绍
前言随着电力企业国际交流与合作的日益广泛,以及各专业技术资格标准条件对外语水平的要求,提高专业技术人员外语水平日渐重要。
为此,国网人才评价中心经多年调查研究,组织电力及相关领域专家结合电力行业实际,反复论证,特编辑了《专业技术人员电力英语水平考试教程》(以下简称:《教程》),并决定从明年起举办专业技术人员电力英语水平考试。
现将2009年电力英语水平考试工作安排如下:
苏州电力专业英文翻译选择哪个公司呢 爱问知识人
电力英语水平考试分为A、B、C三个级别,由国网人才中心统一命题并建立考试题库。
考试合格后由国网人才中心统一颁发《专业技术人员电力英语水平考试合格证书》(以下简称:《合格证书》)。
考试采用人机对话(机考)的方式进行。
各级别的试卷均由客观题组成,考生随机抽取试题,并在计算机上完成解答。
电力英语水平考试A级《合格证书》有效期4年,可用于申报正、副高级和中级专业技术资格;B级《合格证书》有效期3年,可用于申报副高级、中级专业技术资格;C级《合格证书》有效期3年,可用于申报中级专业技术资格。
电力网故障英文怎么写
电力网故障翻译成英文是:malfunction of power network双语例句:This is very meaningful for the reduction of malfunction of power network and the enhancement of the security and effectiveness of the operation of the power network. 这对减少电力网故障、提高电力网运行的安全性和有效性有着非常重要的意义。
相关短语:power network 英[?pau? ?netw?:k] 美[?pa?? ?n?t?w?k] [词典] 电力网,供电网; [例句]This paper researches dispatching automation system of power network.本文对电网调度自动化系统开展了研究工作。
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