日負荷率 的英文怎麼說
中文拼音 [rìfùhélǜ]
日負荷率
英文
daily load factor-
This paper analyzes the character of the transformer load and presents the control means to reduce the comprehensive power loss to minimum by controlling the transformer operation status, which forecasts the daily load of transformer by periodical auto - regression model ( par ) and divides the daily flow line automatically into two typical phases. then, this paper simulates the par by matlab. at last, a real intelligent control device based on the ti ’ s tms320lf2407 dsp has been completed
論文分析了配電變壓器的負載特點；提出採用周期自回歸模型預測配電站用電日負荷，根據負荷預測結果和用電時段，以綜合功率損耗最小為目的變壓器經濟運行控制方法；以ti公司的tms320lf2407dsp為基礎，完成了配電站變壓器經濟運行智能監控裝置的研製。This paper, based on the electric policies of some city, compares in aspects of the capacities and electric powers of main equipment, initial investment, annual operating power costs and the economic analysis of ice storage air condition with normal air condition in different quantity of the storage - ice
本文鑒于某市的電價政策，通過計算某工程的設計日及全年空調負荷，得出各自所需的設備容量及電功率大小，分析比較了初投資及年運行電費等，並按不同的設計日負荷對此工程進行了不同蓄冰量時的經濟分析比較。The numerical results indicate that the deformation within the solid inner core is very small. however, in the fluid outer core, the changes of the displacement with relatively low spherical harmonic degree ( n < 10 ) is very complicated via the radius, due to the resonance near the eigenfrequenies of the core long - period oscillations. while the spherical harmonic degree of the loading is larger than 10, the deformation and the gravitational perturbation in the core are very small, and the earth ' s deformation response is dominantly represented as the radial displacement in the elastic mantle
研究了地球在日月引潮力和表面負荷作用下的形變特徵，數值計算結果表明，在固體內核中的形變很小，由於在長周期核模本徵頻率附近的共振，液核中低階（ n 10 ）位移隨半徑的變化非常復雜，當負荷階數超過10時，地核中的形變和擾動位都很小，地球的響應主要表現為彈性地幔中的徑向位移，且隨深度增加急劇減弱，地表負荷love數與信號頻率的依賴關系很弱，給出了體潮love數計算的一種有效的近似處理方案。Secondly, based on the characteristic datum extracted from the datum of daily peak load, the probability model of the nature random part of power load is established ; the grey gm ( 1, 1 ) model is improved to forecast the basis part of power load ; after the relation model is established on the basis of the researching the relationship between the climate part of power load and climate factors, the probability model of the climate part of power load is established combined with the tentative probability model of temperature
然後，在日最大負荷數據中提取自然隨機分量的特徵數據，建立其概率模型並實現參數估計；改進灰色gm （ 1 ， 1 ）模型，完成年最大負荷中基礎負荷分量預測；研究氣候負荷與各氣候因素的關系，建立合理的氣候負荷與溫度關系模型，結合假設溫度概率模型，完成年最大負荷中氣候負荷分量的概率模型建立。Under the situation of gas supply demand contradiction growing day after day, by studying the features of gas supplying delivering loads of gas pipelines and the gas price in the sichuan basin, according to the gas transmission capacity of the pipelines limited by the given gas transmission facilities, it is suggested removing the peak to fill the valley and optimal distributing the loads, which can not only improve the efficiency of gas supplying / delivering facilities, and release a part of gas supply / demand contradiction, but also improve the benefit of gas marketing
摘要在天然氣供求矛盾日益加劇的情況下，通過研究四川盆地天然氣管輸供氣負荷特徵與用戶用氣負荷特徵及氣價的關系，提出在一定輸氣設施所確定的管輸能力情況下，通過移峰填谷和擇優配置負荷，既可以提高天然氣管輸供、用氣設施效率，緩解一部分天然氣供求矛盾，又可提高天然氣銷售效益。To put into operation a large amount of non - linear load, make in harmony wave of rural power grids serious becoming in pollution, pass to rural local electric wire netting main in harmony analysis of wave source, put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal, increase the pulse of the current change device and install light specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony
摘要大量非線性負荷的投運，使農村電網的諧波污染日趨嚴重，通過對農村地方電網主要諧波源的分析，最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數，以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式，以進行諧波治理。It put out the system requirements from the whole structure, function structure, developing mode, user management, the design of software and database, safety design, system running efficiency, developing plan, etc. it put out the basic graphics operation, the module building and editing of the electrical network, the devices records and function management the devices operating management, the function producing the electrical subject chart, the outside interface function, the in - out function and webgis, etc. it discusses some advanced functions including the theory loss and practical loss computing of the distribution line, the reliability basic data producing and conversing tools, power cut management, the load supplying from other ways, the repairing management on user fault reports, th e new load installing assistant function, the management of hanging the cards and simulating operation, the monitonng and analyzing management of the running information, load monitoring and load density analyzing function and so on
從系統總體結構，功能結構，開發模式，用戶管理，軟體和數據庫設計，安全性設計，系統運行效率，開發計劃等方面滿足了系統的總體要求；系統實現了基本圖形操作，電網建模與編輯，設備臺帳及運行管理，設備操作運行管理，電力專題圖生成，外部介面，輸入輸出， web - gis等基本功能;系統還具有配電線路理論線損計算及實際線損計算，可靠性基礎數據生成和數據轉換工具，停電管理，負荷轉供功能，用戶報修管理，用戶報裝輔助，掛牌管理和模擬操作，運行信息分析監控管理，負荷監控及負荷密度分析等高級功能:並能從運行方式，用戶權限，運行日誌三個方面闡述本系統的管理方式。系統總體結構合理，功能及介面齊全，配置擴展方便，可操作性強。According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation
模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡，且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求，對上述模糊控制策略進行了改進，模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作，且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。分享友人