逆環流 的英文怎麼說

中文拼音 [nìhuánliú]
逆環流 英文
counter circulation
  • 逆 : Ⅰ形容詞1 （方向相反） contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 （抵觸; 不順從） go aga...
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 環流 : [氣象學] circulation; circulating current; circumferential motion; circular current; ring current...
  1. In this paper, a kind of output current feed - forward circuit is added into the input of the current loop. by adding this compensatory circuit, the output character of the inverter is improved greatly

    本文還研究了一種提高逆變器輸出電壓外特性的思路，通過將負載電流正反饋給逆變器的電流環輸入端，從而達到提高輸出電壓的外特性的目的。
  2. A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later

    每個獨立的航空靜止變流器採用占空比擴展有源箝位正激式高頻脈沖直流環節電路拓撲，由占空比擴展有源箝位正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成，前級採用電壓型pwm前饋控制技術，后級採用三態dpm電流滯環控制技術。
  3. Then fourier transformation is employed to solve equations of motion of the rings, bulkheads, stringers and fluid respectively, with their reactions ( moments ) expanded by the shell ' s in - vacuo modes. by means of continuity conditions on the interfaces between the shell and the stiffeners as well as the fluid, and inverse fourier transformation, the modal reactions ( moments ) are finally expressed by the shell ' s modal velocities

    然後用fourier變換分別求解環肋、艙壁、縱骨和流場的運動方程，將它們對殼體的作用力（力矩）用殼體周向模態展開，利用它們與殼體在連接處位移連續條件以及fourier逆變換得到用殼體速度表示的模態相互作用力（力矩） 。
  4. The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered

    氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。
  5. Since the industrial frequency transformer fulfills the boosting voltage part, most of the inverters have such drawbacks as larger size, more weight and bigger ac noise

    目前，大多數戶用光伏逆變電源產品存在著體積、重量、交流噪音大等不足之處，原因在於升壓環節由工頻變壓器實現。
  6. In the east of bohai strait, the seawater has an anticlockwise movement in its main part. in the bohai strait, the characteristic of the depth - average general circulation is that the seawater flows into bohai sea through the northern strait and exits through the southern part

    在渤海海峽外側，海水沿逆時針方向流動;在渤海海峽處，深度平均的渤海環流都表現為北進南出的特徵，但從環流形態上可以看出，流動並不能直接深入渤海。
  7. Just following this, are studies on power factor of inverters and the sharing of harmonic circulating current among units of a parallel operating inverters system

    在此之後，本文又深入分析了逆變電源的功率因數以及並聯電源系統的諧波環流均分控制。
  8. First, it analyzes the working principle and some features of the system, such as the circulating current characteristics, power distribution characteristics, and characteristics about closed loop regulation of voltage. then it goes on to the study of some typical control methods, and designs on this basis, a parallel controller using a synchronization control strategy of racing to merging and a load - sharing strategy combined with feedback control and drooped control

    文中，首先通過建立系統的數學模型，分析了逆變電源並聯運行的工作原理以及並聯系統的一些主要特性，包括它的環流特性、功率特性和電壓閉環調節特性；在此基礎上，又研究了幾種典型的並聯運行控制方式；然後，採用搶占與並發相結合的同步控制方式和反饋與下垂特性相結合的負載均分控制設計了並聯控制器。
  9. Once correct flow rate setting has been established, slide memory screw counter - clockwise towards closed side of indicator plate until memory stop ring hits indicator plate

    一旦確定正確的流量設置，則將記憶螺絲朝著指示器板的關閉位置逆時針方向旋轉，直到記憶止動環觸到指示器板為止。
  10. Step - forced dynamic speed drop analysis digital control, dual ring, direct current and reversible speed governing system

    數控雙環直流可逆調速系統階躍擾動動態速降分析
  11. 4. through the galvanostatic charge / discharge experiments with different schedules, it was found that mn ( ) / mn ( ) in acidic media as half - cell in a novel redox flow system is practically feasible in that it has such advantages as low cost, high open voltage, a certain coulombic efficiency with low charge / discharge current, and long cycling life. in the second part, cosn alloy and cu - sn samples were synthesized firstly by h2 - reduction following solid - state reaction between co ( ii ) 、 cu ( ii ) 、 sn ( iv ) 、 and naoh at ambient temperature

    並研究了其分別作為鋰離子電池陽極材料在1mol / llipf6 / ec + dmc電解液中的恆流充放電性能，各樣品均存在較大的首次不可逆容量損失； 10個循環內cu - sn可逆放電容量可保持在280mah / g以上，而第十周時cosn 、 cu6sn5的可逆放電容量分別為50mah / g和60mah / g 。
  12. The air thermal cnergy water heater creates the new generation hot water cquipments. it makes use of the negative card promise successfully, drieing a hot pump with the elcctrie power. equiping through a hot pump medium of compesing parts evaporate a machine. hot pump, congealed machine and inflate valve, urge the work quality completes evaporationt absorb calories within air continuously compress compress congealed reduce expenses evaporate of the thermody name energy cirenlation proess, transfer the calories in the environment to the water thus in, transfer the in great quantities free calories in the air to the life to use a water in

    空氣節能熱水器是創新一代熱水設備，它成功地運用逆卡諾原理，用電能驅動熱泵，通過熱泵裝置中的構成部件-蒸發器，熱泵，冷凝器和膨脹閥，促使工質不斷完成蒸發（吸收空氣中的熱量）壓縮冷凝節流蒸發的熱力循環過程，從而環境的熱量轉移到水中，將空氣中大量免費的熱量轉移到生活中水中
  13. The digital inverter amplifier is controlled by the dsp chip tms320fl240. the high performance of digital voltage and current control loops and the improved digital pi control arithmetic based on the current prediction techniques is achieved in the software. and the dead - time of inverter also is compensated

    系統中逆變器的控制採用tms320fl240晶元來實現，在軟體中實現了電壓電流的雙環控制，提出並在逆變中應用了電流預估計的pi控制演算法，並對控制死區進行了補償。
  14. The inner loop is equivalent to a controlled current source, so the inverter is easy to parallel with others

    系統的內環等效於一個受控電流放大器，便於與其他逆變器的並聯運行。
  15. The dual - loop control method adapted to current source is proposed - outer loop is the feedback of averaged load current and inner loop is that of inductor current

    逆變電路採用了適用於穩流輸出的雙環控制方式：外環負載電流平均值反饋，內環電感電流瞬時值反饋。
  16. Different power circuits and control strategy of the single phase inverter in parallel condition are first analyzed, and half - bridge inverter is selected as the power circuit and current hysteresis control is selected as the control strategy

    本文首先對單相逆變器的主電路結構和控制電路的結構在並聯條件下進行了比較分析，最後選用了半橋結構的主電路和內環為滯環控制的瞬時電壓電流雙閉環反饋控制方式。
  17. A 6kw svm - based hysteresis current controlled three - phase full - bridge prototype circuit with the proposed controller has been built, and experimental results are also shown

    在完成的6kw電流滯環控制空間矢量調制（ hcc - svm ）的三相全橋逆變器中驗證了其效果，給出了試驗結果。
  18. Li tong have over 10 years experience in electronic accessories reuse and recycling and have developed a number of innovative environmental schemes include training, consultancy services, reverse logistics, dissembling, shredding and recycling processes

    俐通在電子產品的重新使用和回收循環業務上已有超過十年經驗，並且已經積極發展多項革新的環境改善計畫，包括：環境培訓、顧問服務、逆物流、拆解、破碎、和回收處理等。
  19. To solve this problem, this paper re - numbers the nodes by using graph theory. when there are no loop flows, the power flow tracing results can be obtained without inverting the matrixes directly, so the efficiency is improved greatly. when there are loop flows, the power flow tracing problem can still be solved by using traditional methods

    為解決這一問題，本文將基於圖論的節點編號方法引入到基於矩陣的追蹤方法中，在無環流時，可以不用直接對矩陣進行求逆，從而加快了潮流跟蹤的求解時間；在有環流時，仍可以通過傳統的方法對潮流跟蹤矩陣進行求逆。
  20. This paper mainly studies the parallel technology of the single phase inverter and presents a parallel strategy in which there is no power line connection but digital line connection among the inverter modules. this control strategy can be easily realized and the control effect is good

    本文主要研究單相逆變器並聯控制技術，在所提出的逆變器並聯控制策略下各並聯模塊間只有數據連線，無模擬連線，而且控制簡單，環流抑制效果較好。
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