價電荷法 的英文怎麼說
中文拼音 [jiàdiànhéfǎ]
價電荷法
英文
valence-charge method-
First from system aspect, this paper uses voltage sensitivity, pv curves method, equivalent reactive compensation method, back - up generation method to evaluate the reactive value of the generators in seven buses system and ieee 14 buses system. the vs and pv methods can evaluate the source ' s ability of tracking the load ' s variation. the erc and back - up methods can evaluate the availability of replacing other generators. the value determines the cost
從對系統貢獻角度，採用電壓靈敏度方法（ vs法） 、 pv曲線法、等效無功補償法（ erc ） 、無功備用方法來確定一個七節點系統中的發電機的無功價值和ieee14節點系統的發電機的無功價值，電壓靈敏度法和pv曲線法可比較出不同電源跟蹤負荷變化的靈敏度大小，而等效無功補償法和無功備用方法可比較出不同電源替換其它發電機是否是最有效率的。The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,
基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。A novel distribution network optimal control approach for load balancing is presented based on the simplified model of distribution system, in which tie switches are regarded as critical elements. the two feeder lines connected with a tie switch are regarded as a feeder couple. load balancing ratios of feeder couples and total distribution network are defined and be used as indice of network reconfiguration, respectively
提出一種以聯絡開關為核心的用於負荷均衡化的配電網路優化控制方法，將每個聯絡開關對應的兩條饋線看作饋線偶，定義了饋線偶和配電網的負荷均衡率，並以此作為網路優化的評價函數，這樣配電網路重構過程就由若干饋線偶內負荷均衡化過程組成，在此基礎上發展了以負荷均衡化和降低線損為目標的配電網優化方法。Second, this paper analyzes the relation of reactive support service with voltage, power limit curve, transaction amounts. according to the power limit curve, this paper analyzes the source of the reactive cost to get an interzone cost function. using marginal cost theory, it concludes that the reactive spot price is the derivative of the cost function in generator buses
另外，本文還從發電機角度上分析了無功服務與電壓、功率限制曲線、發電機向負荷傳輸電能大小的關系；根據功率限制曲線對發電機無功成本的來源進行詳盡剖析，從理論上確定一個分區間的成本函數；並依據短期邊際成本理論可推出，計算發電機節點的電價可採用無功成本函數的偏導數的方法。Actually, known the distribution of electric price and demand of heat load versus time, an optimizing supply curve can be drawn, that is, the concrete economically running policy can be made
實際上，在已知逐時電價曲線和用戶熱負荷曲線的情況下，應存在一條最優的供熱曲線（或電鍋爐啟停曲線） ，這條曲線可利用最優化理論和適當的優化方法來找到。This paper analyses current situation of chp and situation of development, use evaluating energy utilization - - based on electricity comparing with state calculated method - - based on heat, calculates the operating data of baotou second thermal power plant heat supply system ， extends the study of heat supply performance to heat net and heat consumer, synthetically analyses heat load characteristic 、 pipe net property and heat supply distance witch effect heat supply cost. the paper studies the thermal power performance of thermal power plant total energy system, discuss heat supply cost which effect the development of chp
本文對熱電聯產的現狀及發展情況進行分析，採用能源利用系統性能評價指標體系及其評價指標? ?電量法與國家目前採用的法定計量方法? ?熱量法進行比較，通過對內蒙古包頭第二熱電廠供熱熱源系統及供熱熱網系統的熱電聯產運行數據進行分析計算，將供熱過程的熱力性能研究延伸至熱網和熱用戶，分析用戶終端的能源利用情況，針對內蒙古地區主力機組和地區條件，綜合分析了熱負荷特性、管網性能及供熱距離對供熱成本的影響，研究了熱電廠總能系統的熱力性能，對困擾熱電聯產的供熱成本進行了探討。Section iii proposes a possible organization of a reactive power market, a regional reactive power market established according to the distribution of the load and the reactive supply. the regional reactive power market is composed of a reactive energy market based on marginal pricing and a reactive capacity market based on a reactive regulating capacity payment. the cases in section iv, based on the market organization proposals and the reactive bid structure previously presented, performed on a five - bus system and the ieee 14 bus system, are used to analysis the effects of active bid, voltage control and power factor on the reactive marginal price
本文首先回顧了電力市場發展的歷史和現狀；然後對市場中的定價方法和無功輔助服務的內容及特點進行了總結，並介紹了一些國家的無功輔助服務市場模式和交易方法；接著立足我國國情，提出了單邊開放電力市場下的無功市場框架：即根據負荷和無功源的分佈特點建立區域無功市場，各區域無功市場又由相應的無功電量市場和無功容量市場組成；並提出了該無功市場模式下的機組報價模型和基於報價的以系統總購電費用最小為目標的無功電價計算方法；最後用一個5節點系統和ieee14節點系統進行了實例分析，初步研究了發電機有功報價、系統電壓控制以及負荷功率因數對無功電價的影響，得出了一些有借鑒意義的結論。Introduced by prestressed pier in the gate of spillway in xiao xia hydroelectric power station, the text reasonably established 3 - d finite elements mechanic model by the advanced finite elements popular in the world which can expediently impose tension of anchor funicular at its place. it also considered possible diversified combination of loading, and indicated that the effect of its prestressed action is fruitful compared with its conventional counterpart by study of mechanic calculation in comparison. as a result, it vastly improved burdening state of pier. by analysis of 3 - d finite element method, it also gained the stress result indifferent boundary conditions such as breast wall joint support and fixed support, and the displacement result in diversified loading combination. those results gained the instructive and reference value in design of prestressed pier
本文結合黃河小峽水電站泄洪閘預應力閘墩這一工程實踐，採用國際上已成熟的有限元方法，合理地建立了預應力閘墩的三維有限元模型，該模型可方便地按預應力錨索的點位施加錨索預張拉力，考慮了可能發生的多種荷載工況組合，並與無預應力閘墩結構進行了對比分析研究，指出其預應力效果是明顯的，可以大大改善閘墩結構的受力狀態，通過三維有限元分析，還得到了胸墻簡支、固端不同情況下的應力成果和各荷載下的位移成果，這些成果的取得對預應力閘墩的設計具有一定的指導和參考價值。It is applicable to the network in which the circumfluence exists. pricing of active and reactive power is integrated efficiently. the problem that how to recover the cost of the generators which operate in the under excitation condition is resolved successfully
該方法適用於存在環流的網路，有效地解決了發電機進相運行時生產的成本回收問題，並將負荷有功、無功電價計算有效地統一起來；它計算簡單，實用性強。We are a professional translation company, relate to scopes include : accountant, mechanics, electronics, chemical, bio - pharmaceuticals, motorcar and other fields, have experience in translation, handle with more than 20 kinds of different languages, such as : english, french, german, russian, arabic, danish, dutch, portuguese, japanese, turkish, spanish, italian, korea, polish, finnish, czech, norwegian, swedish, vietnamese ， greece ， hungarian ； have experts on proofread and layout co - workers, competitive price, high quality and consummate service
我公司是專業從事翻譯服務的機構，涉及的領域包括：會計、機械、工程、電子、化工、生物制藥、汽車等方面，具有豐富的翻譯經驗，現已做過的語種有二十種：英、法、德、俄、阿拉伯、丹麥、荷蘭、葡語、日語、土耳其、西班牙、義大利、韓語、波蘭語、芬蘭語、捷克語、挪威語、瑞典語、越南語、希臘語、匈牙種語；有專業的校對和排版人員，低廉的價格和好的質量及優質的服務Consequencely, the analysis and assessment system of the operating state of the concrete dam was developed under the ansys development environment, and the back - analysis and the prediction of the parameters of the dam system have been done according to the operating observed data. the research work involves several aspects as follows : 1 ) a back - analysis model including the prior information and a predictive model of nonlinear time series were established ; 2 ) the analysis and assessment system of the operating state of the concrete dam was developed under the ansys development environment, in which the analysis module of the loading effects, the back - analysis module, the forecasting module of the physical parameters and the assessment module of the operating state were contained ; 3 ) according to the operating observed data, the operating state of the dam was assessed and predicted with the analysis system of the operating state, the results suggested that the dam is in basically normal operation at present
具體工作有以下幾方面： 1 ）收集整理漫灣水電站大壩運行監測資料，並對其進行了系統分析，從觀測資料本身直觀的分析了大壩的運行狀況； 2 ）總結位移反分析的理論及方法，建立了考慮先驗信息多介質位移反分析模型，基於神經網路非線性映射功能，建立了神經網路時間序列預測模型； 3 ）以ansys軟體為平臺，開發了漫灣水電站砼重力壩運行狀態評價模塊，結合荷載效應分析、參數反演分析、參數預測分析三個模塊組成漫灣水電站砼重力壩運行狀態分析系統；實現了對漫灣水電站運行狀態的動態「反演-預測」分析； 4 ）利用漫灣水電站砼重力壩運行狀態分析系統，在漫灣大壩實測資料分析、大壩砼特性參數反分析、大壩砼彈性模量衰變規律及預測分析的基礎上，系統的分析並預測了大壩運行狀態。This paper proposes a novel method for reactive power pricing. the superposition theorem is used to calculate the contributions of individual generators to loads in a given status and the active and reactive power price of loads is determined by cost apportioning
該方法在某一的潮流運行點下，對電網進行等效，利用迭加原理，分別計算此時各電源對負荷的電流貢獻，然後再求得其對負荷的功率貢獻，最後依據成本分攤進行電價計算。Being basis on the 14 regional grid planning texts of historical data of hunan province, initially determining the factors that affecting power grid construction ; to reflect the distribution of information to determine the scale of construction leading indicators to assess the scale, with its own network of intelligence presented to the region to assess the scale of the distribution network - building indicators system ; establishes assessment models of evaluating 110kv distribution network building scale integrated ; considering the main factor that influencing the construction scale of the distribution network, the improvement method of 10kv distribution networks capacity - load ratio is proposed ; the combination of high voltage distribution network planning optimization technology results presented evaluation pressure distribution network building scale integrated assessment methods
課題以湖南省14地區電網已有規劃文本歷史數據為基礎，初步確定各種影響電網建設的因素;以反映配電網建設規模的主導信息來確定規模評估指標，提出了符合自己網情的地區配電網建設規模的評估指標體系;建立了評價110kv配電網建設規模的綜合評估模型;通過研究各影響因素與負荷發展儲備系數參數的關系提出了確定10kv變電容載比的方法;結合高壓配電網規劃的優化技術成果，提出了評價中壓配電網建設規模的綜合評估方法。Then take power usage of the commercial and residents for example, the paper analyzed these two kinds of consumers ’ potential of shifting load by using quantitative method. the analysis told that tou tariff should be spread wider and applied in electricity employment of the business and the residents throughout all of the country
同時，以商業用電、居民用電為例，採用量化分析方法分析其移荷潛力，說明峰谷分時電價應擴大實行范圍，在全國范圍內對商業用電、居民用電實行分時電價。Taking the soft ? sensing of oxygen content in flue gas, unburned carbon content in fly ash and coal load in ball mill as examples, we emphatically analyze the current status, modeling method of their soft ? sensing and the secondary variable selection in the soft ? sensing ; and also summarize some other thermal parameter soft ? sensing techniques in our country, which is a guidance for the development of the thermal parameter soft ? sensing technique in power plant, and has some value for the optimization of thermal control systems
以煙氣含氧量、飛灰含炭量、球磨機負荷為例，著重分析和總結了其測量的現狀、軟測量建模方法和二次變量的選取，並概括了國內現有的其他熱工參數軟測量技術，對火電廠熱工參數軟測量技術的發展具有一定的指導意義，對熱工控制系統的優化具有一定的參考價值。This paper tries to establish a cwl ( climate - weekday - load ) model to predict the heat demand load of users. based on this and associated with the policy of time - of - use electricity price at present time and its future tendency, a much more economical decision can be made for this system using the optimization method
作為嘗試，通過「 cwl （氣候-星期-負荷） 」模型預測用戶的熱負荷需求，並以此為基礎，結合當前及著眼未來的分時電價發展趨勢，利用優化方法對該系統的經濟運行做出決策。Firstly, aiming the marketing of hydroelectricity, that is, under the situation of separated plant and network, and entering the market by the competition of price, the author analyzed the advantages of the development of hydroelectricity. secondly the author made a medium - long - period forecast and evaluation of the electric load of the accepting - electricity area by gray - and - nerve network matrix
首先針對水電市場化問題，即在廠網分家、竟價上網的形勢下，水電發展的優勢何在進行了探討；其次應用灰色與神經網路模型對受電區電力負荷進行了中長期預測與評價；通過梯級開發順序的基本理論與方法研究，得出黃河上游水電梯級開發順序的兩個備選方案。Using square error function and the barycenter algorithm of light intensity as the merit function of focusing and alignment respectively, the system analyzed the images captured by charge coupled device ( ccd ) in the projection screen to produce feedback signals
該系統運用數字圖像處理技術，以方差函數和光強重心演算法分別作為清晰度調節和三色和色調節的評價函數，分析電荷藕合器件（ ccd ）採集的局部圖像，產生反饋信號。Considering the random fluctuation traction load ( from 0 to max, variable at every minute ), the life limit of all kinds of machine switches and expensive cost and complex overhaul of svc, this paper aims to develop a set of svc suitable for the present condition of our country. in order to resolve the reactive power returning back problem and realize static adjustable compensation to improve negative sequence
本文針對電氣化負荷變化頻繁、 svc價格昂貴及檢修復雜、機械開關無法擔負頻繁操作任務的現實，提出通過改造svc結構，把tcr改為tsr ，把tsc實現粗調、 tcr實現細調改為由tsc調節欠補無功、 tsr調節過補無功的技術方案。Seismic safety assessment method and flow load control problem of power system are discussed deeply, and the remarkable criteria of current under normal process and system network model are suggested
摘要對電力系統的地震安全性分析與負荷控制問題進行了深入研究，建立了系統正常運行情況下各支路的負荷電流的評價準則和電力系統的網路分析模型，分析了傳統潮流分析方法的優、缺點。分享友人