矢量變量 的英文怎麼說

中文拼音 [shǐliángbiànliáng]
矢量變量 英文
vector variable
  • 矢 : Ⅰ名詞1. （箭） arrow 2. （尿） excrement; dung; feces 3. （姓氏） a surname Ⅱ動詞（發誓） vow; swear
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  1. A svpwm control algorism for three - level inverter and its simulation

    三電平逆變器空間電壓矢量控制演算法模擬研究
  2. In this paper a kind of cardio - cerebral arterial bifurcation vessel hemodynamic characteristics are studied with the boundary element method, and the blood flowing velocity vector distributions have been calculated. in addition, the flow field distribution and the pressure on the particle surface are also calculated, when there is flow - round particle at the place of bifurcation, the move tendency of the particle is judged, the possible reasons of causing the atherosclerosis, thrombus, angioma are analysed

    本文用邊界元方法研究了一類典型心腦動脈分支血管中血液流動的流體動力特性，計算了分支血管血液流動的速度矢量分佈，同時計算了分支附近有多個顆粒狀繞流物時血液的流場分佈，及顆粒物所受壓力狀況，給出了顆粒物的運動趨勢，分析了引起粥樣斑塊病變、血瘤、血栓的可能原因
  3. Based on vector of land detailed survey database, using spot5 imagery as remote sensing information source to analyze the dynamic change of land use, and then updated the land detailed survey database, completed the cadastre change

    摘要以矢量格式的土地詳查數據庫為基準，以spot5衛星數據為信息源，進行土地利用變化監測，進而更新土地詳查數據序，並完成地籍變更工作。
  4. 4. adopt vector frequency converter motor for traction transmission, which can be controlled with invariable line speed

    4牽引傳動採用矢量變頻電機，實現恆定線速度控制。
  5. 5. adopting vector frequency conversing control for unreeling and feeding drawing, realizing more stable operation

    5收卷出料牽引採用矢量變頻控制運轉更穩定
  6. Vector - contorl wvf system of asynchomous motor is a high performance speed - control system and has been used in a lot of situations of high precision and high performence. in the base of vector - control, some control methods are developing, for example speed - sensorlesss control and self - adaptation control

    矢量變換控制的異步電動機變頻調速系統是一種高性能的調速系統，已經在許多需要高精度、高性能的場合中得到應用。以矢量變換為基礎的許多控制方法，諸如無速度傳感器控制、自適應控制等正在發展中。
  7. According to the theory of light transmission, we derived the expression of rotation angle as a function of the dielectric constant conductivity of er fluid, and ( the angle between the electric vector of linearly polarized light and electric field ) from maxwell ' s equations and fresnel reflection, on the condition of several appropriate approximations and assumptions

    進而導出了非均相結構電流變液在外電場與光場交互作用下旋光角與（入射線偏振光振動方向與外加電場方向間夾角）及參數（為外加電場e 、分散顆粒介電常數、體積分數、絕緣油介電常數、位置矢量（ ? ）等量的函數）的西北工業大學應用物理系碩士學位論文摘要理論表達式。
  8. The paper lucubrated the control theory of induction motor ' s vector transform and the method of calculating speed by induction motor ' s torque current weight, based on which, the paper designed a close - loop speed - sensorless vector control vwf system and realized the system in matlab / simulink

    本文深入研究了感應電動機矢量變換的控制理論和利用電動機轉矩電流分量進行速度推算的方法。在此基礎上設計了一個閉環的無速度傳感器矢量控制變頻調速系統。
  9. Space vector control according as ac induction motor two - axis theory speed separates the stator current into two components. one is the torque component ; the other is the flux component. a structure similar a dc machine structure where torque and field can be controlled independently is given

    矢量變換控制是以交流電動機的雙軸理論為依據，在同步旋轉坐標系中把定子電流矢量分解為兩個分量：一個分量與轉子磁鏈矢量重合，稱為勵磁電流分量；另一個分量與轉子磁鏈矢量垂直，稱為轉矩電流分量。
  10. Taking core loss into account has important effect to improve the torque performance of the motors " field oriented control. in this paper, the transient mathematical model of the asynchronous motor with core loss is setup. the method is proposed that minimizes the loss in a variable speed and torque at the synchronous rotating coordinate

    在對損耗分析的基礎上，建立了考慮鐵損時異步電機的動態數學模型，推導出在同步旋轉坐標系下變速、變轉矩時使電機功率損耗最小的方法，並且結合矢量變換提出了基於快速轉子磁場定向的矢量控制。
  11. After vector transformation control is presented, the ac machines control technology can theoretically solve the problem on the static and dynamic performance relative to the dc technology

    繼1971年矢量變換控制技術出現之後，交流傳動技術就從理論上解決了交流調速系統在靜、動態性能上與直流傳動相比所存在的問題。
  12. To get the genuine seafloor rock medium electrical model, data processing about seafloor magnetolluric raw signal requires information such as seafloor instrument bearing orientation, obliquity, and temperature, by which the real vector change bearing of seafloor magnetolluric fields can be acquired, and then the uniform explanation about the whole survey of multi station is obtained

    為真實地獲取海底巖石介質的電性模型，在對海底大地電磁實測信號進行數據處理的同時，需參考海底儀器的方位朝向、傾斜姿態等信息，以便認識海底電磁場真實的矢量變化方向，進而實現對整個測網多站位的統一資料解釋。
  13. In 1970 ' s, one method of ac induction motor control called direct torque control ( dtc ) was raised. it was developed rapidly in the middle of 1980 ' s, and it has been successfully applied to many occasions up to now. in this paper, the scheme is investigated thoroughly

    直接轉矩控制是20世紀70年代提出的，在80年代中期發展起來的新型電機調速方法，是繼矢量變換控制技術之後，且與之并行發展的一種新型的高性能的交流調速傳動的控制技術。
  14. 1. adopting frequency vector conersion motors control the main motor, unwinding and rewinding, and tension of them. seven motors controlled

    1主機收料放料及收放料牽引均採用矢量變頻電機控制全自動七電機張力控制。
  15. The result shows that the change of cutter axis vector is distributed very well, and no interference occurs between the cutter and the impeller. further more the efficiency and the quality of machined surface were improved

    結果表明，採用分段側銑的方法，生成的刀位軌跡刀軸矢量變化均勻，刀軸未發生干涉，且加工效率和加工質量明顯得到提高。
  16. Direct torque control ( dtc ) which was developed rapidly in the middle of 1980 ' s has been applied to many occasions up to now. it will be very important to apply the idea of dtc to the doubly fed induction machines speed adjustment

    直接轉矩控制是80年代中後期發展起來的新型電機調速方法，是繼矢量變換控制技術之後，且與之并行發展的一種新型的高性能的交流調速傳動的控制技術。
  17. The extending techniques such as vector transform ， excitation inrush current, ta saturation and so on are analyzed, which resolves the question that the traditional optical differential protection can not satisfy the request of line - transformer unit

    同時對光纖差動保護運用於線路變壓器組時涉及的矢量變換、勵磁涌流、 ta飽和等延伸技術進行了分析，解決了傳統的線路光纖差動保護不能滿足線路變壓器組保護的要求。
  18. The varying properties for local nodal voltage and current are analyed theoretically. the method of using local nodal voltage and current change to estimate equivalent impadence

    提出了用局部電壓、電流矢量變化估計電網側等值阻抗模的方法和對用於估計的電壓、電流矢量變化數據的篩選。
  19. 5. adopting vector frequency conversing control for rewinding and exceeding drawing, more stable operation

    5收卷出料牽引彩用矢量變頻控制，運轉達更穩定。
  20. But vector control strategy ca n ' t effectively overcome parameters changing of motor and load, and random disturbance

    但是，矢量變換控制難以解決電動機內部參數變化和負載變化而引起的控制問題。
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