用電負荷率 的英文怎麼說

中文拼音 [yòngdiànfùhélǜ]
用電負荷率 英文
load rate
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 負 : Ⅰ名詞1 （負擔） burden; load 2 （虧損） loss 3 （失敗） defeat Ⅱ動詞1 [書面語] （背） carry on th...
  • 荷 : 荷名詞（蓮） lotus
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 用電 : electricity utilization
  • 負荷 : [電學] load; charge; weight
  1. In the process of arithmetic design, newton " method is used to compute power flow of network. graph theory knowledge is used to determine all paths from generator to load. to improve efficiency, thesis use branch expunction method to optimize the node order

    在演算法設計過程中，採用牛頓拉夫遜法進行潮流計算得到系統潮流分佈，利用圖論原理中的路徑搜索演算法確定了發電機對負荷的供電路徑，此外為了提高潮流跟蹤的計算效率，利用了支路消去法進行節點順序的優化。
  2. The products is of high water hydrophobe device usedin suitable and has the characteristics of aging resistance, resistance, tracking resistance, and corrosive resistance. it can withstand high bent load, strong impact force fn12 - 12 series indoor use high voltage load switch fn12 - 12 and fn12 - 12r is of three phases indoor use ac high voltage load switch for breaking and making the circuit of 50hz, 12kv system under rated loading

    Fn12 - 12和fn12 - 12r組合電器是額定電壓12kv額定頻率50hz的三相高壓開關設備用於分合負荷電流閉環電流空載變壓器和電纜充電電流關合短路電流配裝接地開關的負荷開關，可以承受短路電流
  3. Abstract : the paper points out that the main factor influencing residential load variation are the following household appliance : electric cooker, electric shower bath, air conditioner, etc. in peak - value time from inquiry

    文摘:通過對住宅用電進行調查，分析了高峰用電時間內大功率家用電器，如電炊具、電淋浴器、空調機等投入是當前住宅用電負荷變化的主要因素。
  4. 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。
  5. In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high

    針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析，變頻器輸出的電壓波形諧波大，沖擊大，電壓上升率高達6600v / s ，是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低，額定頻率在8 - 20hz ;調速范圍寬，最低運行頻率低到0 . 5hz ，起動次數相當頻繁，每小時高達600 - 800次，沖擊負荷大，過載能力要求較高。
  6. To prepare international standards for electrical energy measuring and electrical load control equipment ( such as watt - hour meters, var - hour meters, maximum demand indicators, telemetering for consumption and demand, equipment for remote meter reading, time switches, equipment for the control of loads and tarifs and consumer services ) including the equivalent electronic forms of these devices and their accessories

    負責制定電能測量和負荷控制設備（如：有功、無功電度表、最大需量指示器、損耗和需量的遙測、遠程抄表設備、時間開關、負荷和費率控制設備及用戶服務等）的國際標準，包括功能相近的運用電子技術實現的設備及其附件。
  7. The burners of 220 t / h boiler in henan shenhuolv power plant were retrofitted by using the pulverized coal burners with stabilized - firing cavity and cutting down the distance between up - primary air and down - primary air etc. technologies, thus the boiler was successfully converted from originally designed burning high calorific value coal to low calorific value coal, the boiler could operate stably at 50 % load without oil - firing aid and the thermal efficiency of boiler reached 89 %

    摘要採用穩燃腔煤粉燃燒器並集中布置上、下一次風等技術對河南神火鋁電廠220t / h鍋爐燃燒器進行改造，成功地將該爐原設計燃用優質煤改燃為普通煤，並取得了改造后50 %負荷可無油穩定運行，鍋爐熱效率達到89 %的良好效果。
  8. 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。
  9. Taking load uncertainties, infeasibility problem and multiple objection of the reactive power optimization in the radial distribution system into consideration, loads are modeled as fuzzy interval numbers. fuzzy power flow is proposed based on fuzzy interval load for the more practical membership function of line losses rate and maximal voltages offset. this thesis presents multiple objection model of the reactive power optimization considering uncertainties using the fuzzy set theory

    對配電網電壓無功優化問題中負荷的非概率性的不確定性問題、多目標問題、約束不可行性問題進行了研究，用模糊區間來描述實際的負荷情況，並用負荷的模糊區間值計算配電網的潮流，得到有功功率損耗和電壓的模糊區間值，使網損率和節點電壓最大偏移量的隸屬函數更接近實際情況；將改進遺傳演算法與模糊集理論相結合，通過求解多目標函數和約束條件的模糊集合的交集，得出網損率和節點電壓最大偏移量最小的最優運行狀態。
  10. 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。
  11. The artificial neural net ( ann ) way is universal regard as one of the most effective ways of stlf. in this paper, some research is developed for stlf using ann ways in several parts : the first part is about the arithmetic of ann based on bp model, namely the advanced of traditional bp arithmetic, one alterable step and scale bp arithmetic based on comparability of model and probability of accepting bp arithmetic is used to enhances a lot the convergence rate of learning process of bp network, but also avoid the stagnation problem to some extent. it indicates that the ann ' s efficiency and precision by the way can be ameliorated by the simulation of real data

    神經網路方法在短期預測中已經被公認為較有效的方法，本文針對神經網路用於電力系統短期負荷預測的幾個方面展開研究工作：第一部分研究一般用於負荷預測的神經網路bp模型的演算法，即對傳統的bp演算法的改進，將一種基於模式逼近度和接受概率的變步長快速bp演算法應用到短期負荷預測，模擬結果表明該方法有效的改善了bp演算法收斂速度慢以及容易陷入局部最小點的缺點，從而提高了神經網路用於負荷預測的效率和精度。
  12. In this thesis we mainly deal with the research on the performance optimization of data warehouse, including : the factor of the data warehouse performance, the performance optimization of data warehouse, the analysis and performance optimization of olap, at last, we use a example in the electric power system to show the practical application of ihe performance optimization in the data warehouse system

    基於對聯機分析處理系統olap的分析，研究了提高系統執行效率和響應速度的方法，並實現了一個數據倉庫性能優化的實例。論文的內容主要包括：影響數據倉庫性能的因素、數據倉庫的性能優化、 olap的性能分析和優化，對常用的星型模式和雪花模式提出了一種改進方案，論文的最後實現了一個用電負荷分析數據倉庫性能優化的應用實例。
  13. This present dissertation analyzed the practice of power price in china ’ s dsm by using quantitative method and qualitative method. though the price shifted part of peak load to the valley, and enhanced the electro - efficiency. it did not lead to the load ratio remarkably rise

    盡管電價在我國電力需求側管理中具有移峰填谷的作用，提高了電能的使用效率，但是，價格杠桿的運用沒有帶來用電負荷率的大幅提高，電價對調荷節電的作用並不明顯。
  14. Abstract : for offsbore oil fields with large power and heating loads, butlack of asaociated gas, the solution of power and heating co - generation will improve theovemll energy efficiency and cut down operating costs, thus improving the mteof return and lowering the barrel oil xost

    文摘:對于電負荷和熱負荷都比較大而伴生氣量嚴重不足的海上油田，實現熱電聯供將會提高能源綜合利用率，節省操作費用，從而提高油田收益率，降低桶油成本。
  15. Early exploited oilfields mostly adopt the power supply mode of single well & single transformer & single asynchronous motor, which causes that the load rate of equipments in oilfield network is low, the power factor of oilfield network is lower and the energy loss of oilfield network is bigger

    摘要早期開發的油田多採用「單井單變壓器單異步電動機」供電模式，造成油田電網的設備負荷率和系統功率因數過低，電網耗能較大。
  16. Based on the change of electrical load, promptly monitor stop and run operation of capacitor to ensure effective watt factor on proper level

    根據分路用電負荷的變化，及時檢查電容器的投入和退出運行，保證有功功率因數維持在正常水平。
  17. By effectively managing and controlling of electric load, we can improve load curve and advance using rate of power supply equipment, which can prevent from drawing strobe and limiting electricity and avoid affecting social produce and life

    對用電負荷進行有效的管理和控制可改善負荷曲線，提高發供電設備的利用率，可防止拉閘限電，避免影響社會生產和生活。
  18. As well, because of the development of national electric power industry, electric power supply is very enough, the popularize use of electrothermal boilers become possible the actual state of our country ' s electric power development makes the inactive standby capability of dynamos increased, ratio of electric power charge decreased, the difference of power transmission meshwork peak value and valley value become large

    同時由於我國電力工業的迅速發展，電力供應十分充足，為電熱鍋爐的推廣使用創造了有利條件。國內電力發展的現狀造成了機組停機備用容量明顯增加、負荷率下降、峰谷差拉大，給電網的調峰帶來了一定的難度。
  19. 4. simulation and comparisons of the dynamic voltage stability of constant impedance load, constant current load and constant power load in the context of large disturbances, and analyses of the simulation results with their load characteristics

    4 .對大擾動下恆阻抗，恆電流，恆功率負荷的動態電壓穩定性進行了模擬比較，並運用其負荷特性對模擬結果進行了分析。
  20. Seller ' s market is transiting to buyer ' s market. by sep. 1998, buyer ' s market has completely formed ; the average load rate of the power system is declining, and difference between apex and vale is becoming larger and larger ; power consumption increase rate in industry is dropping, and it is far lower than that of society power consumption

    分析表明：從1997年開始，重慶電力資源短缺狀況得到緩解，供需基本平衡，具備逐漸由賣方市場過渡到買方市場的徵候，到98年的9月已完全形成買方市場；重慶電網年平均負荷率逐年下降，峰谷差逐年加大；工業用電量持續下降，且其增長速度遠低於全社會用電量的增長速度，佔全社會用電量的比例逐年下降。
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