負荷變化范圍 的英文怎麼說

中文拼音 [fùhébiànhuàfànwéi]
負荷變化范圍 英文
range of load fluctuation
  • 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
  • 范 : 名詞1 [書面語] （模子） pattern; mould; matrix 2 （模範; 榜樣） model; example 3 （范圍） boundar...
  • 圍 : Ⅰ動詞1 （四周攔擋起來 使裡外不通; 環繞） enclose; surround; corral 2 （繞; 裹） wrap Ⅱ名詞1 （四...
  • 負荷 : [電學] load; charge; weight
  • 范圍 : scope; limits; extent; boundary; confines; range; range dimension; spectrum
  1. The paper analyzes the non - lineal relations of the quantity of heat exchange and water flux of coil exchanger in part - load operating condition, the shortage of deciding the water flux in bypass pipe, the disadvantage that the operating condition of pumps and chiller ca n ' t be met with the load change of the air conditioning system in different operating condition of using pressure - difference bypassing control in primary water pump system. using load control method in the change of the operating condition of primary water pump system can realize that the load change is small and reasonable in the on / off condition of pumps and m m chiller by comparing load control method in primary variable - flow water pump system with pressure - difference bypassing control method, back water temperature control method

    本論文從目前空調工程中使用的變流量水系統入手，研究了盤管換熱器在部分負荷下水流量與換熱量的非線性關系，分析了文獻中介紹的旁通管通流能力選擇的不足之處和一次泵水系統採用壓差旁通控制時，工況轉換不能滿足系統控制要求的缺陷；比較了一次泵變流量水系統中壓差旁通控製法、回水溫度控製法、負荷控製法的精確性，並得出了在一次泵水系統的工況轉換時，採用負荷控製法能使冷水機組及其相應水泵在啟停時的負荷變化范圍較小，更符合建築物的冷量需求，節能效果較好的結論。
  2. In summer, when hydraulic load ranges from 7ml / l - d to 60ml / l - d, the change of the water quality of water discharge is very small, and the removal ratio is over 70 %

    夏季cod進水濃度為1500mg l左右，水力負荷在7 60ml l ? d范圍內逐漸增加時，出水水質變化不大，去除率基本穩定在70以上。
  3. In this paper ， a novel fuzzy optimization model and algorithm to optimize the locations ， sizes and service areas of mv / lv distribution transformers in urban distribution network planning which can consider the imprecision and possibility of spatial load, the voltage level constraints and the cost of objective function is presented

    給出了考慮負荷、供電電壓水平約束和目標函數最小費用的不精細性的城市電網中壓配電變壓器位置、容量和供電范圍的模糊優化規劃模型及演算法。
  4. Eurostag is a large simulation analysis software package used in power system developed by the edf and tractebel of belgium. the most prominent point of this software is that it covers the full range of the phenomena, from transient to long - term stability. that is to say that the time of simulation lasts from the electromechanical oscillations to the daily load evolution

    Eurostag是法國電力公司（ edf ）與比利時tractebel共同開發的大型電力系統模擬分析軟體，它最突出的特點就是可以對系統進行全時間范圍內的模擬，具體的說就是模擬時間可以從系統機電振蕩開始直至一天范圍內負荷的變化，這是目前我們國內所使用的其它系統模擬軟體所不具備的。
  5. And it is calculated and analyzed the distribution and quantity of slag thermal stress created by boiler load shift. thermal stress quantity can be as big as e / 1000 and is enough to destroy slag structure and to make some drop. it is also concluded that the walltube parameters can only affect on thermal stress of the slag that is near to contact surface and contribute little to slag drop

    針對鍋爐變負荷運行時爐膛的自然掉渣現象，分析鍋爐水冷壁渣層中熱應力的產生機理，建立了水冷壁渣層熱應力的計算模型，計算分析了鍋爐大范圍變負荷運行產生的渣層熱應力變化大小和分佈，並分析渣層熱應力的影響因素。
  6. This article emphatically discussed and analyzed following points : load command feed forward function can improve the rapid respond character of steam turbine generator ; lead of load command have advance control function on boiler main control and can highly improve the stability of main steam pressure ; the use of predict control and state space variable function can improve the quality of boiler steam temperature control effectively, control the steam temperature in the defined range and increase the boiler and turbine life and efficiency even if working state changed in a big range ; linear compensation can restrain the vibration of generator load in the condition of big loa d change

    本文重點討論、分析提出負荷指令前饋作用可以提高汽輪發電機快速響應特性；負荷指令的導前功能對鍋爐主控有超前控製作用，能顯著提高主蒸汽壓力的穩定性；採用預測及狀態空間法能有效改進鍋爐蒸汽溫度控製品質，在大幅度工況變化下仍有效控制蒸汽溫度在額定范圍內，提高鍋爐、汽輪機壽命及其效率；汽輪發電機組的快速響應性與汽輪發電機組負荷振蕩問題間的平衡關系，採用線性補償可以有效抑制在負荷變化梯度較大情況下發電機負荷振蕩問題。
  7. Through the test of the separating sieve ' s and beams vibration acceleration, the dynamic bending moment, torque and shearing force as well as the analyze of each parameter by dividing rotation speed range from 300 r / min to 600 r / min of the main shaft, the change regularity of the vibration of the separating sieve, the vibration and the dynamic load on dangerous cross section with the change of rotation speed of the main shaft is obtained. research shows that there exits apparent relevance between the vibration as well as the dynamic load of the main beam and the vibration of the separating sieve. the vibration of the separating sieve mainly affects the composition of low frequency of the vibratio n of the main beam, appropriately amending the vibration acceleration of the separating sieve, the loading and vibration of the mam beam can be directly improved

    通過分檔測試主軸轉速在300 600r min范圍內分離篩與梁的振動加速度、梁所承受的動態彎矩、扭矩和剪力以及各參量的時頻域分析，得到了主軸轉速與分離篩振動、主梁的振動及其危險截面的動態載荷間的變化規律，研究表明梁的振動和其所承受的動載與分離篩的振動之間具有明顯的相關性，分離篩的振動主要影響梁振動的低頻成分，適度改善分離篩的振動加速度，可直接改善梁的負載和振動特性。
  8. In some place of electric system, the load change wide range and the existing current transformers ca n ' t meet the measure request. on the base of consulting a great amount of materials, a deep research on wide range current transformer by active compensation was done in this paper

    本文對電流互感器進行了深入研究，查閱了大量相關資料，針對目前電力系統中某些負荷點變化范圍較大，現有互感器不能滿足計量要求的情況，進行寬量程電流互感器有源補償方法的研究。
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