等效電流系 的英文怎麼說

中文拼音 [děngxiàodiànliúxì]
等效電流系 英文
equivalent current system
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 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...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total. the paper are laid on the following. ( 1 ) master plan and function of circuit, ( 2 ) hardware design including circuit and principle of a / d conversion, phase lock, liquid crystal display and keystroke and so on, ( 3 ) design of system software including digital filtering, fft, a / d conversion and monitor interface of pc, ( 4 ) system test

    監測儀能夠完成包括三相電壓、三相電流的有效值、功率因數、三相不平衡、電壓短期閃變、以及20次內的諧波、諧波相位、諧波失真總量等的測量。論文重點介紹了以下幾部分： （ 1 ）電路的總體設計和功能； （ 2 ）硬體設計，包括a d轉換、鎖相環、液晶顯示和按鍵輸入等原理和電路。 （ 3 ）系統軟體設計，包括a d轉換、 fft 、數字濾波等程序的原理和演算法以及上位機監控界面的設計； （ 4 ）系統測試。
  2. Relation between the equivalent resistance and frequence in transmission line

    載流導線等效電阻與頻率關系研究
  3. In order to obtain the most economic benefits, the paper utilized the theory of " homalographic characteristic " and " share alike compensation current characteristic " to build up the best compensation relation for " hour - current " curve applied to transformer substation and for " length - current " curve applied to distribution line

    以獲得最大經濟效益為目標，利用「等面積特性」和「補償電流等分特性」理論。推導了應用於變電站的「時間?電流」曲線關系中存在的最佳補償關系，以及應用於配電線路的「長度?電流」曲線關系中存在的最佳補償關系，及補償后的經濟效益計算模型。
  4. The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser

    大功率半導體量子阱激光器是一種性能優越的發光器件，具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點，廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎，對器件的光學和電學性能有著重要的影響，生長不出優質的材料體系，獲得高性能的器件就無從談起，因此，材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。
  5. Using contrast and orthogonal experiment methods, the effect of electrolyte formulae for varied concentration of cr03 and technology of chromium plating on coating property was studied systematically in this paper. primary factors and their interrelations, which influence the brightness of coating, the current efficiency, dispersion ability and sedimentation velocity of electrolyte were discovered

    本文採用對比試驗和正交試驗等方法系統地研究了低、中、高三種不同鉻酐濃度的鍍鉻液組成和鍍鉻工藝對鍍鉻層性能的影響，找到了影響鍍層光亮度、鍍液電流效率、分散能力和沉積速度的主要因素及其相互關系。
  6. However, recent years the study of electric eddy - current detection mostly overweights the study of measuring system, and the design of the eddy - current. methods are still equivalent magnetic circuit and equivalent electric circuit model calculation and experiment ' s experience design method

    然而，近幾年電渦流測量方法的研究多偏重於測量系統的研究，而對渦流檢測探頭的設計至今仍採用等效磁路、等效電路模型計算同實驗相結合的經驗設計方法。
  7. The paper synoptically and comprehensively introduces eddy current theory, equivalent circuit, excitation coils, test circuit and application of the eddy - current sensors. a feasible solution of motor core height control based on silicon steel sheet thickness measuring with double eddy - current sensors is presented

    論文在系統全面的分析了電渦流傳感器的基本原理、等效電路、激勵線圈、測量電路及應用后，提出將雙探頭測厚系統應用於電機鐵芯疊控制。
  8. 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。
  9. 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。
  10. The basic idea is that increasing the equivalent harmonic impedance of power network by valid control of active filter, in order to enhance the performance of passive filter and damp the resonance between the passive filter and the equivalent inductance of the power network

    無源支路在補償無功功率的同時還可以濾除因非線性負載產生的特徵諧波電流，為了抑制無源支路跟電網等效電感產生的諧振現象以及改善無源濾波器的濾波性能，系統中採用諧振注入式有源濾波拓撲。
  11. According to the relationship of the angle of the maximum torque and the q axis, the reluctance torque for salient pmsm is made full use of and the sator current amplitude is reduced by a large percentage, so that the system robustness is greatly increased. at the speed loop, this paper presents a single value model algorithmic control strategy which is the simplied form of normal model algorithmic control and has less computation work than the latter, so the real - time performance is very good

    對于嵌入式pmsm ，根據在電流幅值一定的條件下最大輸出轉矩與（為等效電流矢量和q軸之間的相位角）之間的關系，將磁阻轉矩轉換為輸出轉矩從而提高了輸出轉矩，改善了系統的控制性能；在速度環採用單步模型演算法控制，其計算量比較少，提高了系統的實時性和魯棒性。
  12. In the last section, as the design methods of high - order current - mode integrated filters, the equivalent circuits and the multi - loop feedbacks are systematically expounded

    最後本文詳細介紹了高階電流模式濾波器的系統方法，闡述了等效電路替代法和多環反饋法，給出了設計的具體步驟。
  13. Starting with automation system, this paper, firstly, outlines the status of sensor lying in automation field and its developing state, shows the superiority about eddy current test by comparing it with the other nondestructive tests, expatiates the modern developing state about eddy current technology both here and there, shows the vista about eddy current test in our country and the background of the subject about the test for the width and thickness of stripe in the in - wall of cylinder after laser thermal treatment. secondly, beginning with maxwell equation in electromagnetic field theory and combining with some electromagnetic phenomena in real life, this paper explains qualitatively the operating principle about eddy current technology and the test theory for multi - parameter test with multi - frequency by math illation and gives some applying occasions about it

    通過同其它幾種無損檢測技術的比較，給出了電渦流技術的優越性，闡述了國內外電渦流技術的發展現狀，展望了我國電渦流技術發展的未來，給出了汽缸內壁激光熱處理條紋厚度與寬度的檢測這個課題的背景；然後從電磁場理論中的麥克斯韋方程出發，通過一系列的數學嚴密推導，並結合現實生活中的一些電磁現象，定性地解釋了電渦流技術的原理，以及電渦流傳感器多頻率多參數的檢測原理，給出了電渦流技術的部分應用場合，以及電渦流檢測的等效電路。
  14. The moment method is used to calculate the rcs of three - dimensional targets in this paper. these targets include conducting targets, dielectric targets and coat targets. triangular patches are used to model the surface of the target, then electric field integral equation ( efie ) and magnetic field integral equation ( mfie ) are built which satisfy the boundary conditions. the rwg vector base functions are used to denote equivalent electric current and magnetic current on the surface of the target. finally use the galerkin method ( rwg vector base functions are basis function and test function ) to transform integral equations into matrix equation. when obtain the equivalent electric current and magnetic current, we can calculate the scattering field and the rcs of the target

    本文利用矩量法計算了三維導體目標、介質目標、塗層目標的雷達散射截面。首先採用三角形面元對物體表面幾何形狀進行模擬，然後建立滿足邊界條件的電場積分方程（ efie ）和磁場積分方程（ mfie ） ，將物體表面的等效電磁流用rwg矢量基函數表示，最後利用伽略金法（ rwg矢量基函數既作為基函數又作為檢驗函數）將電磁場積分方程轉化為矩陣方程求解未知電磁流系數，得到了表面的等效電磁流后，可以計算散射場和目標的雷達散射截面。
  15. After analyzing the mathematical model of wind turbine and doubly - fed induction generator, a schematic is given about the power flow in the wind turbine and generator and a static equivalent circuit is shown as well. then, through the reference frame transform, the electromagnetic equation, dynamic equivalent circuit, and vectorgraph of doubly - fed generator can be gotten in the dq reference frame. in virtue of the general dynamic equivalent circuit, it produces a asymmetry equivalent

    本文在對風力機和雙饋電機進行了數學分析后，給出了功率在風力機和雙饋電機中的流動過程圖解，同時給出了雙饋電機的穩態等效電路；然後，經過坐標變換，進一步得出了同步坐標系下雙饋電機的基本電磁方程、功率方程、動態等效電路和綜合矢量圖，並藉助通用動態等效電路的形式，得出了便於定子磁鏈分析的不對稱等效電路。
  16. 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。
  17. 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。
  18. In order to meet the needs of real time computation of electric power system state estimation, the estimation algorithm based on decomposing the measurement of voltage scope and power scope and the estimation algorithm based on the measurement transformation of the equivalent current are brought forward and deduced in this thesis. these two algorithms all can make the jacobian matrix a constant matrix and they are stimulated

    為了滿足電力系統狀態估計實時性的要求，本文首先提出並推導了可以使雅可比矩陣為常數陣的基於分解電壓測量量和功率測量量的估計演算法和基於等效電流測量變換的估計演算法，並對此進行了模擬。
  19. In chapter 2, eddy - current test theory is analyzed from several aspects. though analyzed the equivalent circuit of eddy - current test, the reliability of eddy - current test technology on aluminum foil thickness test on line is given and the eddy - current sensor design method and the eddy - current sensor parameters selecting are discussed

    論文第二章從多個角度分析了電渦流檢測的原理，在對電渦流檢測等效電路分析的基礎上，提出了電渦流檢測技術在鋁箔厚度在線檢測系統中應用的可行性，文中還詳細討論了電渦流傳感器的設計方法及課題中電渦流傳感器參數地選擇。
  20. When a new clean ac power supply is designed, it is very necessary to know the relationship between the equivalent induction and the thyristor turn - on angle

    在設計新型交流凈化電源時，掌握等效電感和雙向晶閘管延遲導通角之間的關系很重要。
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