磁通量量子 的英文怎麼說

中文拼音 [cítōngliángliángzi]
磁通量量子 英文
fluxion quantum
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 通 : 通量詞（用於動作）
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 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...
  • 通量 : [物理學] flux; shower
  • 量子 : quantum; gion
  1. The primary theory of absorption and desorption was also explained. the effects of primary process parameters, such as hydrogen pressure, time and temperature on the magnetic properties of ndfeb have been researched. the structure and magnetic properties have been analyzed by means of optical metallographic microscopy, scanning electronic microscopy, x - ray diffraction analysis, infrared oxygen detector and magnetic properties measurement

    本文設計了燒結ndfeb的氫爆制粉設備，對設備調試以及使用過程中出現的主要問題進行了簡要的說明，提出了一系列解決方法；闡述了吸氫、脫氫的基本原理；研究了氫氣壓力、通氫時間、氫爆溫度等基本工藝參數對磁性能的影響；利用金相顯微鏡和掃描電子顯微鏡， x射線衍射分析，紅外線測氧分析及綜合磁性測量儀等手段分析了材料的組織結構和磁性能。
  2. For the mesoscopic metal ring system in external magnetic field, supposing the system has a symmetry under translation in charge space, the quantum current and the quantum energy spectrum in mesoscopic metal ring are given by solving thire eigenvalue equations ; and the quantum fluctuations of the current and the energy have been calculated by the character of the minimum shift operator

    摘要針對處于外磁場中的介觀金屬環系統，假設在電荷空間中具有變換的對稱性，通過求解本徵值方程給出系統的量子電流、能譜關系；利用最小平移算符的性質等，計算介觀金屬環中電流和能量的量子漲落。
  3. For one - dimensional mesoscopic metal rings system in external magnetic field, supposing the system has a symmetry under translation in charge space, the quantum current relation in mesoscopic metal rings is given by solving the eigenvalue equation of the current, the property of quantum current have been investigated and analysed

    摘要針對處于外磁場中的一維介觀環系統，假設在電荷空間中具有變換的對稱性，通過求解電流算符的本徵值方程，給出系統中的量子電流關系，分析和研究一維介觀金屬環中量子電流的性質。
  4. The flow - measuring system adopts the khafagi flume as the first sense organ to realize the flow / head signal conversion. the head signal is picked up and converted into voltage signal by the buoy - level mechanism and the magnet - resistant angle measuring sensor

    該流量測量系統採用卡發基水槽作為一次敏感器件實現了流量水位的信號轉換，並通過浮子?杠桿測量機構和磁阻式角度傳感器對水位信號進行拾取並轉化為電壓信號輸出。
  5. In this paper, several scheme of vscf is compared firstly, of which gets doubly - fed generating mode. doubly - fed vscf wind power generating system uses a doubly - fed induction generator, which rotate speed can be able to change with wind turbine, and it ensures a constant - frequency output, by controlling the frequency of current input into rotor windings. in vector trans control system, the control of stator active power and the control of stator reactive power can be essentially decoupled, and the former is via torque component and the latter is via exciting component of stator current

    本文首先比較了幾種變速恆頻方案，從中選擇了雙饋式變速恆頻方案；它運用雙饋電機的工作原理，允許發電機轉速變化，而在電機轉子側接入低頻勵磁電流，通過控制該電流的頻率，保證雙饋電機定子輸出的頻率恆定；再結合矢量控制技術，通過調節轉子電流來控制定子電流的轉矩分量和勵磁分量，相應獨立地控制發電機輸出的有功功率和無功功率。
  6. 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。
  7. As a non - linear and multi - coupled system, the control of the ac induction motor ( acim ) has long been challenging. thanks to the vector control algorithm, acim can offer the same control capabilities and dynamic performance as traditional high - performance dc motors. with the vector control algorithm, the stator current of acim can be expressed in two orthogonal axes, and thus the rotor flux part and torque are de - coupled

    交流感應電機難于控制是因為它是一個非線性、多耦合的系統，矢量控制演算法通過坐標變換將異步電機的定子電流分解為轉子磁鏈方向和與之垂直方向的兩個分量分別進行控制，從而實現轉子磁通和轉矩的解耦，使得交流感應電機的動態性能可以和直流電機媲美。
  8. Wire antennas are still very popular on vehicles, ships and aircrafts. they are easily to be interference sources and sensitive bodies. in our calculation we must take account of the mutual coupling between wire antennas when they are very close

    線天線在移動通信系統中被廣泛地應用，它作為許多機載、艦載、衛星、通信電子設備中電磁能量的發射和接收埠，最有可能成為輻射干擾的干擾源和敏感體，特別是當天線靠得很近的時候，必須考慮相互之間的互耦。
  9. This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement, easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented

    該方案由於引入了定子電流勵磁分量的閉環控制，使系統同時具有轉速和勵磁調節兩個調節通道，具有如下優點：一、解決了超同步工作工況不穩定的問題；二、提高了定子側的功率因數（與轉子側功率因數為1相比） 。三、由於速度調節在轉子坐標系下進行，並以轉子電流矢量定向，所以無須轉子位置傳感器，也不用檢測初始位置，易於組成無速度傳感器雙饋調速系統。
  10. A high temperature superconducting quantum interference device ( squid ) was fabricated for magnetocardiogram ( mcg ) measurement, and a single - channel dc squid magnetocardiograph was developed

    摘要研製了用於心磁測量的直流高溫量子干涉器，並建立了單通道高溫直流超導量子干涉器心磁圖儀。
  11. By calculating the feynman diagram in rtf, we find that when taking into account both the thermal photon emission, absorption and the virtual photon exchange processes, the infrared divergences at zero and finite temperature can be cancelled at the same time. the full quantum calculation results for soft photon radiation coincide completely with the poisson distribution obtained in the semiclassical approximation ( the coupling of the classical current and quantized field )

    通過實時溫度場論下的費曼圖計算，我們得到：將實光子的發射、吸收，虛光子的交換過程同時考慮時，零溫場論中出現的和由溫度效應引起的紅外發散都能得到消除；並且完全量子場論下的軟光子輻射幾率與半經典近似下（經典的電流和量子化的電磁場之間的耦合）得到的泊松分佈結果完全一致。
  12. On the bases of analyzing two typical direct estimation methods of rotor speed, a novel sensorless technique of permanent magnet synchronous motor ( pmsm ) direct torque control ( dtc ) is put forward in this paper

    通過分別計算出定子磁鏈矢量角位移與轉矩角，將後者從前者中減去得到轉子磁鏈矢量的角位移進而得到轉子速度信號，並採用改進積分器取代傳統的積分器。
  13. There are mainly two ways of theoretic study on gmr in magnetic granular alloys. one is to extended the quantum or quasi - classical treatments of gmr in multilayers to the one in magnetic granular systems. the other is a phenomenological method which adopes effective medium approxiation ( ema ) and two - channel model directly

    顆粒復合膜中巨磁阻效應理論研究主要有兩條途徑：一條是將多層膜中巨磁阻效應的量子方法和半經典方法推廣到顆粒復合體系，另一條是直接利用有效介質理論和雙通道模型的唯象方法。
  14. Based on the analysis of the control theory of the dtc of doubly fed induction machines, in this paper, two control schemes are proposed : the least mode of rotor current and the stator power factor adjustable mode. in the first control scheme, we may make the rotor voltage the same or opposite phase with the rotor current by throwing suitable rotor voltage vector

    在第一種控制方案中，通過施加轉子電壓矢量，使轉子電流與轉子磁鏈垂直，轉子勵磁全靠定子電流，即可保證轉子電流和轉子電壓同相或反相，從而實現了轉子側功率因數為1 ，可減小轉子側變頻器的容量。
  15. The contributions done are as follows : according to the mathematical model of doubly fed motor and the theory of vector control, a unit power factor of rotor control scheme is proposed. in the doubly fed adjustment system, in order to control magnetic torque of motor this scheme is designed by controlling the reverse direction between rotor voltage and current to keep the vertical direction between rotor current and flux. it is known from theoretical analysis that for partly decoupling this scheme is only effective under sub - synchronization speed, but not control the system and obtain steady state since speed adjustment system ca n ' t adjust the magnitude of rotor flux under sup - synchronization

    而傳統的無速度傳感器雙饋調速矢量控制系統，由於採用磁鏈定向方法，在同步速附近存在較大的工作死區，針對上述問題，本文做了如下的研究工作：本文從雙饋電機的數學模型出發，根據矢量控制的基本原理，提出了一種轉子側功率因數為1的雙饋電機矢量控制方案的設想，即在雙饋調速時採用轉子電流定向的方法，並控制外加轉子電壓與轉子電流始終反相，以保持了轉子電流與轉子磁鏈矢量垂直，通過控制轉子電流的大小來達到控制電機電磁轉矩的要求。
  16. In engineering, vector control ( vc ) is called as filed orientation control ( foc ). the principle of foc is to divide stator current into two dc components. one of them is oriented to the rotor magnetic flux, another is oriented to the torque. the operating process can be carried out by transforming coordinate in magnitude flux and torque keeping consistent conditions

    矢量控制一般稱為磁場定向控制，該控制理論的原理是在轉子磁通和轉矩保持不變的情況下通過坐標變換將異步電機的定子電流分解為按轉子磁場定向的兩個分量分別進行控制，從而實現轉子磁通和轉矩的解耦。
  17. In the paper, the principle and actualizing means of spatial vector control have been systemically discussed and the control software has also been designed. the magnitude of both the rotor flux and the current in torque component have been estimated by using a flux observer, which is developed based on field orientation control principle. the results show that the observer has a good feature due to its speed being calculated without speed sensor or additional hardware

    本文對矢量控制的原理、控制方法以及控制實施策略進行了較為系統的分析與研究，利用速度間接觀測理論，建立了異步電機的磁通觀測器，電機的定子磁通和電流的轉矩分量可以通過磁通觀測器估算出來，從而得到電機的轉速，並由此建立了異步電機無速度傳感器矢量控制的理論數學模型和相應的控制演算法，在此基礎之上，利用工程中常用的電機專用dsp晶元tms320lf2407作為處理器，對異步電機進行變頻調速控制。
  18. Analysis of the mathematics model of the field oriented vector - control system, design of the closed - loop pi controller of speed, torque and flux ; studies on the control principle and algorithm of svpwm, and analysis of the two control methods of svpwm. 2

    深入研究了轉子磁場定向矢量控制系統的數學模型，設計了轉速、磁通及轉矩的閉環調節器：對svpwm的工作原理和控制演算法進行了研究，並分析比較了它的兩種控制方式。
  19. This paper make a study of controller on permanent magnetsyn - chronous motor. the permanent magnetsyn - chronous motor has many virtue such as simply structure and simle solidity etc. with this excellence. it has more and more uses in industry and agriculture. the idea of this paper is to control permanent magnetsyn - chronous motor system through vector control. to solve the problem of pid regulator, we use the fuzzy control and self adaptive pid

    本文設計的思路是採用轉子磁通定向的矢量控制技術，主電路採用spwm和交-直-交電壓型逆變器，其中spwm採用sa4828晶元直接產生，在控制器的實現方面，採用了tms320lf2407型dsp晶元作為主控板cpu ，實現了電流、轉速雙閉環的控制系統。
  20. Rsfq ( rapid - single - flux - quantum ) logic family is a new type of technology in superconducting digital circuits, in which the information is carried in the presence or absence of sfq voltage pulses generated by damped josephson junctions

    超導快單磁通量子rsfq （ rapidsinglefluxquantum ）電路是一種新型超導數字電子技術，它通過磁通量子化了的電壓脈沖的有、無，來表示二進制信息。
分享友人
分享到 Line

分享到臉書