有效電流 的英文怎麼說

中文拼音 [yǒuxiàodiànliú]
有效電流 英文
active current; energy current; watt current
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 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...
  • 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...
  • 有效 : effective; valid; efficacious
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. Cathode and anticathode electric current distributing online detect equipment can trace aluminum electrolysis pot and document the electric current data change. by avail of this data, the relation of anticathode and cathode will be discovered. furthermore, some unknown rule may de discovered by online analysis and data mining. in this paper, author has completed a full study toward the production of aluminum electrolysis

    陰、陽極電流分佈在線檢測裝置跟蹤記錄了大量的鋁電解槽在平穩運行和發生針振時的陰、陽極電流分佈變化情況及方差變化情況的原始數據；從理論上講，在這兩者之間存在一定的對應關系，通過對陰、陽極電流分佈的實時、在線檢測，可以對電解槽的穩定性進行判斷，從而找到一種全新和更有效的管理模式。
  2. Experimental results of three videos at coal bunker floor of the electric factory show that the methods for the image sampling, the edge detection, and the flow analysis are practical and effective

    在電廠中進行了三段煤傳輸錄影實驗，對三段錄影流量檢測的重復性和準確性比較結果表明，本文提出的圖像採集、邊緣提取以及流量分析方法可行、有效。
  3. The experiment results indicate that this method is more effective in the brushless direct current motor ' s low speed torque ripple attenuation, and its more effective in improving system dynamic performance

    運行結果表明，此方案能有效地抑制無刷直流電動機低速時的轉矩脈動，更好地改善系統的動態性能。
  4. 1. the composition and current efficiency of ni - w - b electrodeposit in the bath containing ammonium citrate as complexing agent were related to the deposition current density and bath composition

    在以檸檬酸銨為絡合劑的鍍液中， ni - w - b合金電沉積層的組成和沉積電流效率與沉積電流密度及鍍液的組成等有關。
  5. The method of obtaining high concentration of na2feo4 solution by quick electrolysis mainly contains four aspects : adoption of either a diaphragm or an ionic membrane electrolytic cell in which a thin anodic cell lying between the two cathodes, ( 2 ) using an iron anode that has larger specific surface area, ( 3 ) keeping suitable concentration of naoh in the anodic cell, adoption of lower current density and higher electrolyzing speed. the practical technique parameters follow a s below : the naoh solution of 14 - 16mol / l, the temperature of 303 - 308k, the surface anodic current density of 300a / m2, the unit electrolyzing speed of efficiency larger than 6. 0a / l

    快速電解獲取高濃度na _ 2feo _ 4溶液的方法，主要包括四個方面：採用兩陰極室夾一厚度較小的陽極室的隔膜（或離子膜）電解槽；使用比表面積較大的鐵網陽極；保持陽極室中有適宜濃度的濃naoh溶液；採用較低的電流密度和較高的電解速度。具體工藝參數是： 14 16mol / lnaoh溶液、溫度303 308k 、表觀陽極電流密度300a m ~ 2 、有效單位電解速度6 . 0a / l 。
  6. Finally, because high - speed power solenoid valve is one of the most important executive parts in the electronic control diesel engine and the performances of diesel engine are strongly related to the solenoid valve, the response performance of the solenoid valve is investigated. the response performance of the solenoid is influenced by many factors, such as driving voltage, electric driving unit etc. in order to have high excitation voltage and in low maintaining voltage, a high - low voltage electric driving unit is designed, and in order to make the solenoid valve close more rapidly, an active free - wheeling circuit and a bootstrapping circuit are designed in the electric driving unit, too. in the high - low electric driving unit, high voltage and low voltage are supplied by the dc - dc device and by the accumulator respectively

    高速強力電磁閥的響應性能除了與閥本身的結構和材料有關外，與驅動電壓、驅動電路的設計密切相關，本文通過分析，首先開發出一種高低壓驅動電路，高壓電源是山升壓式dc - dc原理獲取的，低壓由蓄電池本身提供，實現高壓強激和低壓維持的功能，電路中採用有源續流電柴汕機中卜軌知介系統的設訓及其七川j敝略的叭究路進行續流，加誣了電磁閥的關閉速度；採用自舉吐路，降低了場效應管對驅動電壓的要求。
  7. However, the application of particle boundary condition may destroy the validity of the method. we present some methods to ensure the rigorous charge conservation

    數值模擬中發現，粒子邊界條件的施加破壞了有效電流分配方法對靜電修正的自動滿足。
  8. It includes four criterions of locating fault point ? “ transient zero sequence current amplitude law ”, “ stable base wave zero sequence current phase law ”, “ stable seventh harmonic zero sequence current phase law ” and “ s injection law ”. pointing out how the law locate the fault point to minimal fault section by applying these criterions gradually. the law will not only make up the blemishes existing in current methods for single - phase fault location in small current grounding system, but also locate the fault point to minimal fault isolating unit on fault line

    該方法通過將所包含的四個定位判據- 「暫態零序電流幅值法」 、 「穩態基波零序電流方向法」 、 「穩態7次諧波零序電流方向法」和「 s信號注入法」 -進行有選擇地遞進使用，不僅有效彌補了目前已有小電流接地系統單相接地故障選線的缺陷，更將故障定位在故障線路最小故障區段。
  9. The emulational calculating theories of traction power supply system ' s operating charts combine with actual things of engineering design at present in chapter three, to set up traction web current distributing mathematical model, integral distributing mathematical model, locomotive distribution and obtaining current model at every moment, and on which making use of mathematical planning methods to set up mathematical models is based at every moment in every instance interval of the railroads. for instance, instantaneous current, instantaneous voltage descent and effective current, main changing capacity and so on, in addition, there are the minimum power shortage model, the optimal transformer substation location, the least engineering expenditure, the optimal mathematical model of traction power supply system. optimize design ' s algorithm of traction power supply system is introduced in detail in chapter four, where programming idea and realizing method of the computer software are given an explanation

    本研究主要進行了以下工作：結合牽引供電系統運行圖的模擬原理和現行工程設計的實際情況，建立了牽引網電流分佈、積分分佈、任一時刻機車分佈和取流的數學模型；應用數學規劃方法建立了任一距離區間、任一時刻的瞬時電流、瞬時電壓降數學模型和有效電流、主變容量和主變壓降、最小功率損失、最佳變電所容量、最佳變電所位置、最少工程費用、最少運營維護費用和牽引供電系統方案最優等方面的數學模型；闡明了牽引供電系統優化設計的演算法和計算機軟體編程思想及實現方法；進行了工程實例計算；最後，對牽引供電系統優化設計技術應用進行了總結。
  10. By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion

    由此得出結論，在非線性磁場計算中：採用迭代法的情況下，在各迭代循環之間進行磁導率修正時，一個欠鬆弛迭代過程是必需的；對永磁體中的等效電流修正時可以不作欠鬆弛迭代；在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值，會使得插值求出的磁導率在該磁飽和值附近有一突變，這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中，由於微波管磁路比較復雜，作者認為磁體的工作點並不能很好地反映磁體的工作狀態，而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況；要表示磁系統設計好壞的程度，則用磁能利用的效率為標準更好。
  11. Shaped pattern synthesis originated with schelkunoff in 1943. however, the current magnitude variations could not be effectively controlled by most conventional approaches until michael. j. buckley in 1993 employed the implicitly constrained current elements in the optimization process

    傳統的賦形波束綜合演算法沒有對電流幅度加以有效的控制，綜合得到的電流幅度變化較大，給饋電網路的設計和實現造成很大困難。
  12. Then it discusses the influence of electric parameters on the heating effect bases on an analysis of the result of the numerical simulation

    在集膚效應作用下，電纜導體內部的有效過流面積減小，交流阻抗顯著加大，其發熱量也很大，井下電纜伴熱加熱技術就是利用這一原理來加熱原油的。
  13. The validity and superiority of all these are proved by use the parallel converter of novel upfc to implement reactive current compensation, zero sequence and negative sequence currents compensation, harmonic currents compensation and the mixed compensation of them. this thesis also studies that use novel upfc to implement two phases operating in high - voltage transmission lines by theory analyze and simulation testify

    提出了基於多電平變換器的廣義大功率有害電流補償的概念，提出了適合於它的多環定時滯環控制方案，通過用新型upfc的並聯變換器實現無功補償、零序和負序補償、諧波補償及它們的綜合補償來驗證了其有效性和優越性。
  14. Then, the dielectric targets ' electromagnetic scattering is researched. an important principle of electromagnetic field theory - - equivalent theory is introduced. as well as the conducting target, the geometrical model of the dielectric target should first be built, then triangular patches are used to model the surface of the dielectric target. different from the conducting target, there has not only equivalent electric current but also has equivalent magnetic current on the surface of the dielectric target. so now should built two equations - efie and mfie to obtain the unknown current coefficients. the rcs of dielectric sphere, dielectric cylinder, dielectric cube are calculated respectively

    其次，本文研究了介質目標的電磁散射，介紹了電磁場理論的一個重要的原理? ?等效原理。與導體目標一樣，先建立介質目標的幾何模型，然後用三角形面元模擬介質表面。與導體目標不同的是，在介質表面除等效電流外，還有等效磁流，因此需建立兩個方程? ?電場積分方程（ efie ）和磁場積分方程（ mfie ）來求解未知的電磁流系數。
  15. Two cases are analyzedxonducting target with coat and dielectric target with coat. for the conducting target with coat, triangular patches are used to model the surfaces of the coat and the conducting object. now there have equivalent electric current and magnetic current on the surface of the coat, but only has equivalent electric current on the surface of the conducting object. the rwg vector base functions are used to denote equivalent electric currents and magnetic current. three integral equations should be built to obtain the unknown current coefficients ; for the dielectric object with coat, triangular patches are used to model the surfaces of the coat and the dielectric object. now there have equivalent electric current and magnetic current not only on the surface of the coat but also on the surface of the dielectric object. this time four integral equations should be built to obtain the unknown current coefficients

    對于塗層導體目標，將塗層外表面和導體外表面進行三角形面元剖分，在塗層外表面有等效電磁流，導體外表面僅有等效電流（無等效磁流） 。將這些等效電磁流用rwg矢量基函數表示，需建立三個積分方程來求解未知的電磁流系數；對于塗層介質目標，將塗層外表面和內層介質外表面進行三角形面元剖分，在塗層外表面有等效電磁流，內層介質外表面也有等效電磁流，這時需建立四個積分方程來求解未知的電磁流系數。
  16. Second, several feasible methods with which to incorporate the microwave devices into the fdtd simulation of microwave active circuits are discussed. direct implementation places the circuit element on the edge of a fdtd cell as a two - terminal element in the device region. another implementation is to place effective electric currents, or equivalently, current sources, voltage sources and effective magnetic current sources

    接著研究了如何把微波器件加入微波電路中進行fdtd模擬的幾種方法，其中一種方法是把微波器件作為一個二埠元件放置在一個網格的邊上直接進行fdtd運算，另外一種方法是在有微波器件的區域使用有效的電流來代替微波器件，或者等效的源，包括等效電流源，等效電壓源和等效磁流源。
  17. The results indicate that asvg not only can compensate reactive currents, but also can effectively filter the harmonic currents, negative sequence currents and zero sequence currents

    模擬結果證明基於空間矢量調制的asvg既能夠補償不平衡系統的無功功率，同時又能夠有效地濾除系統中的諧波、負序和零序等有害電流。
  18. The properties of different permanent magnetic bearings with both axial and radial magnetization are studied by mean of equivalent current and finite element method respectively. the levitation forces and stiffness have been calculated and agreed well with measured data

    研究了採用軸向和徑向不同磁化方向的永磁環所構成的永磁磁懸浮軸承懸浮特性，分別運用等效電流法以及有限元法分析計算了磁懸浮力以及剛度特性。
  19. In order to make the converter operate normally without the interference by emf, the cable connecting the converter to a 3 - phase motor must have high resistance to emf interference, low effective capacitance and low transmission impedance

    為保持變頻率器正常工作不受電磁干擾，因此連接變頻器與三相交流電機之間的電纜就要求具有抗干擾性能、較低的有效電容及較低的傳輸阻抗。
  20. Since the dc current on each side is the same, the effective dc in the transformer core is cancelled, so there is no need to provide for a large dc component

    因為兩臂的直流電路相等而方向相反，所以在變壓器鐵心中有效直流磁通是互相抵消的，所以不再需要巨大的直流元件。
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