定子阻抗 的英文怎麼說

中文拼音 [dìngzizǔkàng]
定子阻抗 英文
stator impedance
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 抗 : Ⅰ動詞1 （抵抗; 抵擋） resist; combat; fight 2 （拒絕; 抗拒） refuse; defy 3 （對等） contend with...
  • 阻抗 : [電學] impedance
  1. For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions

    針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機，本文提出一種基於六個離散位置信號的自同步svpwm （電壓空間矢量法）控制方法，用以削弱電磁轉矩脈動，分析了實現這種方法的主要控制環節，包括起動時電壓空間矢量的初始定位，阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。
  2. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  3. The voltage of lithium - intercalation reaction, impedance and structural stability of intercalation - type cathode material were analysed and calculated. theoritical results show that the reaction voltage depends on the content of lithium and the bond energy, and that the key ways to lower the electrode impedance are to increase the electronic conductivity of the electrode and the diffusion coefficient of lithium ion in the host and to decrease the size of powder. in addition, the thermal stability of lithium - insertion structure can be improved by using crystallographic co - lattice theory and doping treatment

    本文從嵌入式陰極材料的嵌鋰反應的電壓、阻抗及結構穩定性的分析和理論計算著手，得到了電壓取決于基體中各種離子間的鍵能及鋰含量、降低電極阻抗的關鍵是提高電子型導電性和li ~ +在基體中的擴散系數及減小粉末粒度的理論依據及其利用晶體的共格原理和摻雜改性的方式來提高材料嵌鋰結構的熱穩定性的設計思路。
  4. The results show that the electron mean drift velocity is affected by the cathode radius, the impedance of the load diode, the inner radius of vanes and the input voltage

    結果表明電子平均漂移速度決定於陰極桿半徑、負載二極體阻抗、陽極慢波葉片內徑和輸入電壓。
  5. This effects can be explained as follows : the radiation conditions are actually impedance matching condition in terms of microwave network, for a fixed dimension of a resonator and output transformer, only below the critical plasma density ", the matching condition can be satisfied in the smith circle map

    我們提出，這一現象可從阻抗匹配的角度來解釋。對於一確定尺寸的腔體、阻抗變換器，存在一個等離子體密度的臨界值，只有在等離子體密度低於這個臨界值時，腔體的輸出阻抗和波導的特性阻抗才能滿足匹配，即滿足所謂的輻射條件。
  6. Two cold - test parameters determine the working voltage, frequency band, efficiency and gain of twt. they are dispersion and interaction impedance of the slow - wave structures ( sws ) in twt, which are very important targets for twt

    行波管慢波結構的色散和耦合阻抗是行波管設計中兩個非常重要的冷參量，它們決定了整支管子的工作電壓、頻帶寬度、工作效率和增益。
  7. Cancer vaccinologists often compare their field with that of monoclonal antibodies a decade ago, when those molecules that can, say, block a specific receptor on a cell had fallen into disrepute

    癌癥疫苗學家經常把他們的研究領域比做10年前的單株抗體；單株抗體這種分子能夠阻斷某個變壞細胞上頭的特定受體。
  8. This method applies ward - pv equivalent principles to determine the injection power and equivalent impedance of external network boundary buses, and then predictor - corrector primal - dual interior point method of discrete control variables to address the sub - problem of reactive optimization of equivalent network

    該方法採用ward ? pv等值原理來確定外部網路邊界節點的等值注入功率和等值阻抗，再應用考慮離散變量的預測-校正原對偶內點法來求解等值網路的無功優化子問題。
  9. Technically, the damping factor is the specified load impedance ( in use, that ' d be the speaker system ) divided by the amplifier ' s output impedance

    技術上，阻尼因子就是指定的負載阻抗（實踐中，也就是揚聲器系統）除以放大器的輸出阻抗。
  10. Technically, the damping factor is the specified load impedance ( in use, that ' d be the speaker system ) divided by the amplifier ' s [ i ] output impedance [ / i ]

    技術上，阻尼因子就是指定的負載阻抗（實踐中，也就是揚聲器系統）除以放大器的輸出阻抗。
  11. The main works and research consequences of this paper as follows : by the basis of pigmentation mode of concrete, texture shape - taking and the factor of duration damage, whole structure and design principle of high performance color stamped decorative concrete is determined. this structure is a three - layer construct consisting of pigmentation of surface, onetime stamped with base concrete and surface coating

    根據混凝土的著色方式、質感成型方式以及耐久性破壞因素，確定高性能彩色印模飾面混凝土的整體結構及其設計原則，採用面層著色、連同基體混凝土一次壓印成型及表面封閉的三體結構，提出優異的抗離子遷移及耐磨阻蝕設計原則。
  12. A comparison is made with available simplified theories such as that corresponding to plane strain model. the comparison involves many aspects such as the soil resistance factor, the soil complex local stiffness and the pile complex stiffness at the level of the pile head. the applicability of the other two models is analyzed and checked

    3 、將本文嚴格解與其它簡化解（如基於平面應變假定的解等）從土層阻抗因子、土層局部復剛度和樁頂復剛度等方面進行了對比分析，檢驗和校核了簡化解的適用性。
  13. Thus the resistance factor and vibration modes of the soil layer are obtained and used to analysis the pile response. by considering the interaction between the soil layer and the pile with boundary condition of continuity of displacement and equilibrium of force at the interface of soil layer and pile, the dynamic equilibrium equation of pile is solved and an analytical solution for the pile response in frequency domain is yielded, which is used to define complex stiffness and mobility at the level of the pile head. based on the convolution theorem and inverse fourier transform, a semi - analytical solution of velocity response in time - domain subjected to a semi - sine exciting force is given

    首先通過引入勢函數方法對土體位移進行分解，從而將土體動力平衡方程解耦，求解得到了土層的振動模態和阻抗因子，然後利用該解以小應變條件下樁土接觸面上力平衡和位移連續條件來考慮樁土耦合作用，求解樁的動力平衡方程，得到了樁頂的頻域響應解析解、復剛度和速度導納，利用卷積定理和傅里葉逆變換，求得了半正弦脈沖激振力作用下樁頂速度時域響應半解析解。
  14. Our method is based on non - linear convolution model and uses artificial nervous net algorithm and simulated annealing algorithm, introducing the acoustic impedance as condition of constrained solution to avoid the hypothesis of wavelet or reflection coefficient in common seismic inversion, and adopting the control of fine seismic interpretation model in extrapolation

    反演方法以非線性褶積模型為基礎，引入井旁聲阻抗作為解的適定性的約束條件，避開一般地震反演對地震子波及反射系數的假設。反演外推採用精細地震解釋模型控制。演算法上，引用人工神經網路和模擬退火演算法。
  15. The impedance matching design of the ultrasonic motor has been completed. the measuring pzt have been adhered to either side of the stator, measuring voltage changes of it making use of piezoelectric effect when the ultrasonic motor works

    為增大馬達的輸出能力，定子採用雙面粘貼壓電陶瓷驅動。建立了超聲波馬達的等效電學模型，完成了超聲波馬達阻抗匹配的設計。
  16. The method of mechanical impedance to calculate stator ' s natural frequency is given, and so is the flow of modal analysis. these results are compared

    給出了機械阻抗法計算sr電機定子固有頻率的方法和使用模態分析儀分析模態的流程，針對實驗樣機給出計算及實驗結果，並進行對比。
  17. Simulation on operating process of three - phase asynchronous motor with unsymmetrical stator phase impedances

    三相異步電動機定子阻抗不對稱時的運行過程模擬
  18. The splitting method is employed to demonstrate the miller ' s theorem and coupling miller ' s theorem and the application of the splitting method for circuit analysis is described by using example

    用阻抗分裂法證明了密勒定理及對偶密勒定理，並舉例說明了阻抗分裂法在電子線路分析中的應用。
  19. The pile group and the surrounding soil are discretized into horizontal layers, which meets a plane strain assumption. by means of that the single pile dynamic impedance is developed with a transfer matrix method, the pile - to - pile dynamic interaction factor is derived. then, the dynamic impedances of rigidly - capped pile groups with due consideration to pile - soil - pile interaction for vertical oscillations are produced

    本論文充分考慮土的成層性和沿深度有變化的特性，將土層沿深度離散形成一系列均質的土層，各土層視為滿足平面應變假定，應用傳遞矩陣法推導出單樁在成層地基中的動力阻抗；並據此研究了在成層地基中的樁-樁動力相互作用因子，然後推導了群樁剛性承臺豎向動力阻抗。
  20. In the thesis, first, the single pile dynamic impedance and the single rigid foundation one are derived in homogeneous elastic media. then, the pile - to - soil, soil - to - pile and soil - to - soil dynamic interaction factors are defined and worked out. and a simple method for calculating dynamic vertical impedance of rigidly - capped pile groups in homogeneous elastic media is developed

    文中首先利用單樁和單獨剛性基礎在均質彈性土中的豎向動阻抗，然後定義了樁一土、土一樁、土一土動力相互作用因子的概念，並對諸動力相互作用因子作了理論推導及計算，進而建立了均勻介質中群樁豎向動力阻抗的簡化計算方法。
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