電動不穩性 的英文怎麼說

中文拼音 [diàndòngbùwěnxìng]
電動不穩性 英文
dynamic instability
  • 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...
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 穩 : 形容詞1 （穩定; 穩當） steady; stable; firm 2 （穩重） steady; staid; sedate 3 （穩妥） sure; rel...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 電動 : motor driven; power driven; power operated電動擺 motor pendulum; 電動扳手 electric wrench; 電動泵...
  1. The brake system in ev and hev which are of regenerative braking is different from the conventional friction braking system in certain aspects. its braking stability would change during braking besides it can recover kinetic energy of the vehicle

    具有再生制動功能的電動汽車制動系與傳統燃油汽車的摩擦制動系有所不同，除了能回收部分制動能外，其制動時的制動穩定性也將發生變化。
  2. But with wind power capacity enlarging constantly and stochastic and incontrollable wind energy, wind asynchronous generator " s frequent startup will take inverse impact to wind power system stability, which is one of the most important restricting factor on wind power " s large - scale development

    然而，隨著風電裝機容量的不斷擴大，風能的隨機性和不可控性，使得相對頻繁起動的風力異步發電機，對風電系統穩定性的影響也愈來愈大，成為制約風力發電規模發展的主要因素之一。
  3. On the backgrounds of researches inside and outside country, and cooperating experiments with theories analyses, the influence of different processing technology parameters and different sbs modifier sorts on the sbs modified asphalts " properties has been studied. at the same time, their microstructure are observed through fluorescence optical microscopy and scanning electronic microscopy, thus to direct modified asphalt production. on the above conclusion ' s basement, analysing some disadvantages of the storage stability test of sbs modified asphalt in the current specification, a new storage stability test apparatus is developed

    本文在參考國內外研究的基礎上，採用理論、試驗相結合的方法，研究加工工藝參數以及改性劑種類等對sbs改性瀝青性能的影響，並通過熒光顯微鏡、掃描電鏡分析其微觀形態，從而指導sbs改性瀝青的生產；在此基礎上，分析我國現行規范用來評價sbs改性瀝青儲存穩定性方面的不足，開發了新的試驗儀，根據動態剪切流變試驗結果和微觀狀態分析，提出一個新的指標? ?離析率r _ s來評價sbs改性瀝青的儲存穩定性；最後，針對不穩定的改性瀝青提出改善措施，研究證明摻加增容劑和穩定劑是行之有效的方法。
  4. In this article, physical equations and relative three - dimensional finite - difference formulae in cylindrical and spherical geometries were derived and two - and three - dimensional code in cylindrical and spherical geometries for direct - drive by laser was made, based on the lared - s code in planar geometry. it consisted of the processes such as the inverse bremsstrahlung absorption, electic heat conduction and fluid dynamics

    本論文在lared - s程序平面版本基礎上，推導了三維柱和球幾何中激光驅動的物理方程和相應的差分方程，編制了二維和三維柱和球幾何中激光驅動流體不穩定性的lared - s程序版本，主要物理過程包括：激光逆軔致吸收、電子熱傳導和流體運動。
  5. Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running

    本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點，提出多變量協調控制方案，解決了系統可控性差，難以實現穩定自動運行的問題；在此基礎上，改變以往以煙氣含氧量控制送風的傳統模式，針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重，煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題，應用智能控制理論中的模糊控制技術，結合自尋最優控制的思想，設計了一種模糊自尋優控制器，應用在電站鍋爐送風控制系統上，並闡述了動靜態兩種實現途徑，通過在線優化風煤配比，實現最佳經濟燃燒，切實保障了鍋爐的經濟運行。
  6. ( 3 ) modeling of the asymmetrical half bridge converter in the thesis, a small average circuit model of asymmetrical half bridge converter power stage is established by method of state space averaging. in term of it, a system model of total converter is founded. the characteristic of stabilization and dynamic is analysed and the compensator is designed basing of it

    （ 3 ）不對稱半橋dc dc變換器的建模分析採用狀態空間平均法建立了不對稱半橋變換器功率級的小信號平均電路模型，在此基礎上建立整個變換器系統模型，對系統的動態特性和穩定性進行了分析並設計了補償器。
  7. The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed

    本文對空芯動圈式直線同步電動機進行了深入細致的研究，內容包括： （ 1 ）採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式（集中電流法、分佈電流法） ，同時介紹了兩種永磁電機氣隙磁場計算方法（磁荷法，直接求解拉氏方程法） ，分析各種方法的優缺點，討論電機參數對氣隙磁密的影響； （ 2 ）介紹了單層同心繞組的布置方式，根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式，分析靜態力?位移特性； （ 3 ）建立空芯動圈式直線永磁同步電動機動態模擬模型，模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。
  8. In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source

    摘要基於李家峽水電站雙排機組振動的現場試驗研究，並且針對傳統頻譜分析方法傅立葉變換（ fft ）對于非平穩信號已力不從心這一缺陷，利用小波分析方法在時域和頻域上同時具有良好的局部化性質，通過對開停機這一典型非平穩過程信號進行小波及小波包分析，將其分解到不同頻帶內，獲取微弱信息和提取優勢頻率，並對其作振源分析，得出開停機初始時刻因水流不穩均出現強烈的振動現象，且低頻段信號能量最大，開停機過程水流脈動壓力和尾水渦帶擺動是引起定子基礎振動的主要原因。
  9. Using the two - stream fluid model, the linear dispersion relation is derived assuming a two - dimensional spatial geometry. two cases are considered, one is that the 2d spatial geometry is defined by the plane containing the two counterstreaming electron populations and the perturbation wave vector ( referred as the xy plane ), and the other is that the geometry is defined by the plane being vertical to the two counterstreaming electron populations ( referred as the yz plane )

    對高能束流和電子迴流構成的雙流系統，建立冷等離子體流體模型，採用簡正模分析方法，分別考慮擾動波矢在平行於電流傳播方向的平面（記為xy平面）上和在垂直於電流傳播方向的平面（記為yz平面）上這兩種情況，推導了不穩定性的色散關系。
  10. Using this model, not only the normal static and dynamic characters of aircraft epgs but also the fault state system can be simulated. it is useful to analyse and design aircraft epgs

    利用本文開發的模型，不僅能模擬電源系統及其部件正常工作時的穩態和動態特性，而且能模擬其故障狀態，有助於對飛機電源系統進行分析和設計。
  11. It is means that gahc would be harmless to the stability of other generators, when it is used to reduce the ste of local generator. the simulating tests of gahc used on steam turbine and hydro turbine had been done in single machine system and multi - machine system. the results of simulating tests show that the generator stability could be improved by gahc, it is harmless to the stability of other generators in multi - machine system

    在單機系統和三機無窮大系統中對汽輪發電機和水輪發電機的gahc控制進行了模擬實驗，模擬實驗結果驗證了： gahc提高了汽輪發電機和水輪發電機抵抗三相短路故障擾動沖擊的能力； gahc在多機系統中對其它發電機的穩定性不會產生危害作用；水輪機的gahc克服了水錘效應對穩定性的危害作用。
  12. This mode of valve is a kind of brand - new patent electromagnetic valve developed by this co., with an electromagnetic block as the auxiliary valve and not directly acting on the switch valve while only through adjusting the force difference between the media to get the switch valve, having lower energy consumption, longer duration, more stable performance etc. notable feratures, compared with the traditional electric valves, and extensively used for various water etc. liquids control system

    A型閥是我公司開發的一種新型專利電磁閥。電磁塊作為輔閥，不直接作用於開關閥，僅調節介質壓力差獲得開關閥，與傳統電動閥相比具有耗能低壽命長性能穩定等顯著特點。廣泛應用於各種控水油等流質的控制系統。
  13. This machine is adaptive to sticking labels on bottles of a long tube shape that cannot stand stably during liquor filling, such as small injection bottles, ampoules, and other medicine bottles, as well as batteries. the entire machine is of s304 stainless steel or oxidation p rocessed alloy aluminium, with all the main electric and control units of internationally famous brands, among which the driving system japanese import, and the photoelectric control system german import. all these factors mentioned above can ensure a stable and accurate label sticking operation

    該設備適用站立不穩的長筒瓶貼標，如口服液瓶小注射瓶安培瓶電池針劑藥品瓶等，整機為s304不銹鋼與經氧化處理的鋁合金製成。主要電器控制元件均是國際知名品牌，貼標頭驅動系統為日本原裝進口件光電控制系統為德國原裝進口件，確保了貼標的準確性和穩定性。
  14. Based on a set of multi - function intelligent security appliance, this text redesigned the hardware and software on the part of low voltage startup and power testing, not only condensed old hardware circuit but enhanced the stabilization of the hardware circuit, and made the testing precision of voltage, current and power no more than 2 % o measure, designed interlock protect of the whole system, and finished the experimental appliance

    本文基於一套多功能智能電器安全測試儀，在低壓啟動，功率測量兩個方面在原有的基礎上重新設計了硬體，不但精簡了原來的硬體電路，而且提高了電路的穩定性。重新設計了軟體，使其電壓，電流，和功率的測量精度都不超過千分之二的量度標準，還對整個系統作了聯鎖保護的設計，並且做出了樣機。
  15. Complete h bridge driving circuit is achieved to drive motors in the hardware design of robot ' s driving and control system. it adopts pwm digital signal as its control signal. this kind of circuit has some advantages, such as economical, room saving, good resistance against noise

    在機器人驅動控制系統的硬體設計部分，實現了pwm全數字控制的全h橋式多電機驅動電路，它不但具有經濟、節約空間、抗噪能力強的優點，而且有效地消除了電機靜態摩擦死區，低速平穩性好。
  16. The simulation results show that the controller can guarantee the global asymptotical stability of the system, and the pmsm servo system achieves excellent tracking performance, and is robust to uncertain parameters and load torque disturbance

    模擬結果表明，所設計的非線性控制器保證了系統的全局一致穩定性，永磁同步電動機伺服系統獲得了很好的跟蹤效果，並且對參數不確定性及負載力矩擾動具有很好的魯棒性。
  17. The results show that, when the compressor continuously runs, the stability of the test bed after using manual valve is better than that of using thermal valve, and it is little affected by the kinds of valves for adjusting cooling water ; and that, when the compressor intermittently runs, the operation stability would be obtained if pneumatic valve is used to adjust cooling water, especially at low speed

    結果表明，壓縮機連續運行時，製冷劑採用手動閥調節后工況的穩定性明顯好於採用熱力膨脹閥時的情況，此時調節冷卻水量用的電動調節閥和氣動調節閥對工況穩定性影響相差無幾；間歇運行時，無論是熱力膨脹閥還是手動閥，即便壓縮機通電時間最長，仍達不到設定工況，特別是低速的斷續尤為明顯，而使用氣動閥就能很好地解決這一問題。
  18. Under the pattern of cyber - education, open laboratories are becoming inseparable parts which still are weak in the process of teaching. as for electric experiment category, there are many problems in common, for instance, less safe in equipment systems, less functional in instrument protection, thus forcing students to spend large quantity of time reviewing, recording, and analyzing data, while students do experiment only with less time, which have negative effect on purpose of experiment, at the same time, this does not reflect benefits that internet brings us

    然而當前大多數高校的實驗教學環節還比較薄弱，其中對電類實驗來說存在諸多共性問題，比如：實驗系統安全性差，儀表保護功能少，導致實驗器材損壞嚴重：儀表性能不穩定，零漂、溫漂現象嚴重，元器件線性度校正不夠，儀表測量精度差；學生做一次實驗要花大量時間記錄數據、整理數據、寫實驗報告，真正用在做實驗上的時間並不多，從而使實驗效率大大下降；同時也沒有充分利用校園網所帶來的便利和信息共享及互動的功能。
  19. Firstly, the propagation of intense laser light in ionizing gases is analyzed including the ionization - modulation instability, the vectorial and nonparaxial effects, and the mechanism of laser energy loss. secondly, we analyze the propagation of intense laser light in plasmas, and effects such as the weakly relativistic nonlinearity, the ponderomotive force and the wakefield are analyzed

    文中對強激光在電離氣體中傳輸的電離不穩定性、矢量非傍軸傳輸和能量損耗機制，以及強激光在等離子體中傳輸的弱相對論性非線性效應、有質動力作用和尾波場效應等都作了基本的分析。
  20. So adjusting the load voltage becomes more convenient than intrinsic test set, and the output of the load voltage is more accurate and more steady than before

    舊的測試儀，加載電壓依靠電位器手動調節，調節不夠方便，顯示不夠直觀，並且固電位器的機械使用性能而使輸出電壓不穩定。
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