efficiency of generator 中文意思是什麼

efficiency of generator 解釋
發電機效率
  • efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
  • of : OF ＝Old French 古法語。
  • generator : n 1 產生者，生殖者，創始者。2 發電機，發生器。3 【音樂】基礎低音。4 ＝ generatrix a D C generator...
  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. Thus, objective of this project is to improve the functionality and efficiency, and mitigate the drawbacks of a variable speed generation system or asg ( adjustable speed generator ) in conjunction with a dfig ( double fed induction generator ), which is frequently named as variable - speed / constant frequency ( vscf ) generation system

    本文的研究目的是改進雙饋電機變速發電系統或變速驅動系統的的功能和效率，減輕系統缺陷所帶來的危害。雙饋電機變速發電系統通常又稱為變速恆頻發電系統（ vscf - variablespeedconstantfrequency ） 。
  3. Especially the generation unit consisted of high - speed generator and micro turbine without a gear box can largely reduce the system volume and increase the efficiency

    尤其是高速發電機與燃氣輪機直接相連組成發電機組，中間不帶減速機構，可大大降低系統體積，提高系統效率。
  4. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  5. Artificial neural network algorithm for calculating efficiency of water turbine generator unit

    水電機組效率的神經網路演算法
  6. Effect of plugging on the efficiency of steam generator

    蒸汽發生器堵管對裝置功率影響研究
  7. According to the power equation of pipe ozone cell, this paper takes advantage of the advanced technology and experience of ozonier, analyses and discusses the approach of improving the power and efficiency of the ozone generator

    本文借鑒了國內外臭氧發生器先進技術和經驗，根據管式臭氧發生器放電室的電暈放電功率方程式，分析討論了提高臭氧發生器功效的途徑。
  8. The working parameters ( specific enthalpy, entropy, flux of working fluid, reynolds number, etc. ), the configuration parameters of the main components, such as steam turbine - generator group, evaporator and ehd condenser and system efficiency were calculated on the base of thermodynamics theory

    文中以熱力學理論為基礎，計算了低溫余熱發電系統的運行參數（比焓、熵、工質流量、雷諾數、管路壓力等）和各主要組件如汽輪機-發電機組、蒸發器和ehd冷凝器的結構參數，並計算了系統的效率。
  9. High speed : high efficiency and low resistance moment, under the same conditions, the generator speed can reach at 1. 5 or 3 times of the normal generator ' s, so it can be make good use of

    轉的快：電機輕快高效，阻力矩極小，同等條件下，轉速是其它電機轉速的1 . 5到3倍，風葉的風能利用系數更高，可以發更多的電。
  10. People have committed themselves to boosting up the efficiency of dss for about thirty years. now, the focus of dss research is changing from the expert - based dss into the model systems of idss, operation interface, knowledge transaction cell, idss generator and distributed idss

    三十余年來，人們致力於用各種方法來增強dss的效能， dss的研究重點也由專家型決策支持系統逐步轉移到idss的模型系統、人機界面、知識處理單元、 idss生成器和分散式idss上面來。
  11. The mixing of air and fuel can be improved, d ) adding air distributary valve at exit of air - intake can increase the amount of air bifurcated into the dome region, so the value of combustion efficiency is increased, e ) increasing gas generator nozzle number can improve combustion characteristics in the dome region and produce good condition for combustion progress, f ) when the fuel streams are ejected into the second combustor with a angle, the combustion efficiency is increased, g ) when the speed of fuel streams increased, the intension and temperature of recirculation region is improved

    兩個進氣道在補燃室周向成180度布置，有利於增強燃氣同空氣的摻混； 4在進氣道出口增加空氣分流擋板，有利於增加進入頭部的空氣流量，提高燃燒效率； 5增加燃氣噴管數量能增強燃氣同空氣在頭部的燃燒效果，為燃燒的進行創造良好的條件； 6
  12. Urbular turbine generator set is suitable for heads from 2m to 15m and large discnarge. its feature is that water flow is axial throughout the passage from the inlet to the outlet, so that the passage is straight conduit essentially. the tubular turbine generator set is characterized by good characteristic of water flow and high efficiency. etc

    混流式水輪發電機組廣泛適用於高中低各種水頭，一般從10米至300米，其特點是水流流經轉輪葉片時先沿著幅向進入，然後逐漸變成軸向離開，因而混流式水輪發電機組具有運行可靠，結構簡單，平均效率較高等特點。
  13. The generator is consisted of many different kinds parts and its manufacturing must adopt the mode of gathering prqcess, optimizing layout and nc process, which can effectively increase the material utility ratio of raw steel - plate and the productive efficiency. it is necessary to implement nc automated programming by computer because optimizing layout and nc programming need deal with a great deal of data

    發電設備具有零件種類多、同類零件數量少、零件總量大的特點，採用「集中下料、優化排樣、數控下料」的生產管理模式才能有效減少下料過程中的材料浪費、提高企業的生產效率和經濟效益。
  14. At present, the hydropower station is the construction in the energy sector that our country supported development especially, most power stations operate the monitoring to the efficiency of hydro - generator unit not perfect enough at home, overhaul to put forward and perfect constantly concept by condition - based maintenance of unit, load optimizes of unit and economical operation is the good trend that operates of hydropower station, monitor to hydro - generator unit operation parameters particularly essential in real time

    目前，水電站是我國重點支持發展的能源建設，而國內大多數水電站對水輪發電機組效率的在線監測剛剛起步，隨著機組狀態檢修概念的提出和不斷完善，機組負荷優化、經濟運行是電站良好運行的必然趨勢，所以對水輪發電機組效率的實時監測尤為必要。
  15. To improve the efficiency of ozone generator and reduce power consumption, the most important is to solve the power supply and ozone cell

    要提高臭氧發生器的效率，降低能耗，首先要解決的是相應臭氧發生器供電電源和作為負載的大功率臭氧發生管。
  16. 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。
  17. Based on sufficient investigation of relative field at home and abroad, combined with actual state of engineering, aimed at the characteristics of low temperature waste heat power generation, under adequate consideration of economical efficiency, the thermodynamic system models on the base of rankine - cycle, which mainly consisted of evaporator, ehd condenser and steam turbine - generator group with r11 as working fluid, were constructed after comparing the current low temperature waste heat power generation systems

    文中在對國內外相關領域進行了充分調研的基礎上，結合工程實際狀況，針對低溫余熱發電特點，充分考慮經濟性的前提下，對現行的低溫余熱發電系統進行比較，選擇了以具有低沸點的r11為工質，由蒸發器、 ehd冷凝器、汽輪機-發電機組等主要部件組成的有機朗肯循環熱力系統模型。
  18. The disc - type permanent - magnet synchronous generator, with compact structure, so good ventilation, large moment of inertia and high efficiency, has gained renewed attention in the direct - drive variable - speed wind turbine applications in recent years for its features and favorable reliability. in this paper, based on the traditional wind power generation technology, the direct - drive variable - speed wind generation technology is mainly researched. a comprehensive research on the disc - type permanent - magnet synchronous generator used in the direct - drive variable - speed constant - frequency wind power generation

    本文在傳統風力發電技術的基礎上，致力於研究直驅式風力發電技術，以作為直驅式風力發電機用的盤式永磁同步發電機為主要研究對象，進行了深入的研究，主要包括以下幾方面: 1 、對國內外風力發電研究現狀作了較為全面的綜述，介紹了盤式永磁同步發電機的發展概況和國內外研究現狀。
  19. The relationships between the cycle cop ( coefficient of performance ), the cooling capacities ( qe ) of the system and the hot air temperature, between cop, qe and the ambient air temperature, relative humidity, between cop, qe and the wet air temperature at the generator upside, between the system general efficiency and the hot air temperature are found

    得出系統製冷量、 cop值、總效率隨環境空氣溫度和相對濕度、太陽能集熱板出口空氣溫度以及發生器出口空氣溫度的變化關系。通過研究發現，當熱空氣達到一定溫度時，循環具有較好的穩定性。
  20. Optional shock wave generator that introduced from germany, which has the advantages in fragmentation efficiency, low noise and low cost of lithotripsy

    採用引進德國技術的電磁波源發生器，具有碎石效果好，無噪聲，低成本碎石的優點。
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