電流波動 的英文怎麼說

中文拼音 [diànliúbōdòng]
電流波動 英文
current fluctuation
  • 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...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  • 波動 : 1 （不穩定） undulate; fluctuate; unsettle; surge; rise and fall 2 [物理學] wave （motion）; wave...
  1. The theories and design principles of each circuit of the spwm three - phase frequency inverter experiment unit are in detail introduced in this thesis. at the same time some experiment results are shown that include the output voltage and current waves when the load is in resistivity, inductivity or asynchronous motor

    文中詳細介紹了spwm三相變頻實驗單元所包含的各電路環節的理論基礎及設計過程，並給出了調試結果，如負載為阻性、感性和異步電動機時，實驗單元輸出的電壓和電流波形。
  2. For the bldcm which has a general crest width of the back - emf waveform, two kinds of torque ripple conditions when drived by sine - wave current as well as by square - wave current are deduced based on the mathematical models. in addition, a comparison is carried out between these two conditions, which indicates that sinusoidal current driving is more favorable to minimizing the torque ripple when the crest width of the back - emf waveform is less than a certain value

    闡述了抑制齒槽轉矩措施對反電動勢波形的影響，利用無刷直流電機的數學模型推導並比較了任意平頂寬度梯形波反電動勢在正弦波和矩形波兩種電流驅動下的電磁轉矩脈動情況，得出在梯形波平頂寬度減小到一定數值后採用正弦電流驅動更有利於減小電磁轉矩脈動。
  3. Electromagnetic compatibility - part 3 - 3 : limits - limitation of voltage changes, voltage fluctuations and flicker in public low - voltage supply systems for equipment with rated current inferior or egal to 16 a per phase and not subject to conditional connection

    電磁兼容性.第3 - 3部分:限值.額定電流小於或等於16a相併且在無條件連接情況下的設備用公共低壓供電系統的電壓變化電壓波動和電壓閃動的限值
  4. This paper introduces a power controlling system for electrosurgical generator based on thyristor, and proposes a power compensating method to maintain the output power invariable when the ac voltage fluctuates

    介紹了基於可控硅整流電路的高頻電刀控制系統，並針對該類型電刀的輸出功率隨電網電壓波動而發生漂移的問題，採用了一種功率補償的方法，實現輸出功率在不同的電網電壓的波動下保持恆定。
  5. This paper introduces a power controlling system for electrosurgical generator baaed on thyristor, and proposes a power compensating method to maintain the output power invariable when the ac voltage fluctuates

    摘要介紹了基於可控硅整流電路的高頻電刀控制系統，並針對該類型電刀的輸出功率隨電網電壓波動而發生漂移的問題，採用了一種功率補償的方法，實現輸出功率在不同的電網電壓的波動下保持恆定。
  6. This paper makes a science analysis to power system " s harmonics and harmonic oscillation in partial power net, develop the analysis software of harmonic oscillation characteristic. make use of this software can obtain the harmonic oscillation characteristic curve in a row frequency range, can discover accurately oscillation, can make an in - depth analysis and statistics and renew the realistic curve of voltage or current on the basis of the measured - data

    本文通過對電力系統諧波及局域電網諧波諧振現象的理論分析，設計、開發了局域電網諧波諧振特性分析軟體，利用該軟體可以獲取連續頻域內的諧波諧振特性曲線，發現準諧振區域，而且還能根據實際測試數據，正確統計分析出所要求的參數，同時能夠恢復電網實際的電壓、電流波形，並能根據國家標準自動生成分析報告。
  7. The study shows that the output pulse value of resistance absorption equipment is related to the chopper switch conduction ration and the selection of lagging angle

    研究表明，地面電阻吸收裝置的輸出電流脈動與斬波器的導通比、各支路斬波器的開關滯后角有關。
  8. In order to solve the existing ct saturation problem which is met in current differential principle, this paper bring forward the new method to discriminate ct ' s saturation based on bd wavelet transformation

    針對電流差動原理中遇到的ct飽和的問題，提出了基於bd小波變換識別ct飽和的新方法。
  9. Under operation system of dos and windows, control software is developed respectively. the wave of voltage and current as the ac contactors switch - on and switch - off is displayed dynamically, which make the equipment not only used as general electric life test instrument, but can apply test date for contactor study

    在控制軟體方面，分別完成dos平臺和windows平臺控制軟體設計，實現了交流接觸器觸點閉合與斷開時刻電壓、電流波形動態顯示功能，使該裝置不僅能作為交流接觸器常規電壽命試驗裝置，還對接觸器觸點的研究提供必要的試驗數據。
  10. The operation principle, stability and current ripple of the output filter inductor between serial and parallel modes are analyzed. a 1000 va serial and parallel combined dual buck half - bridge inverter ( dbhbi ) has been implemented to verify the analysis

    文章分析了該逆變器的工作原理、串並聯兩種運行模式對輸出濾波電感電流脈動、輸入電壓脈動、系統穩定性的影響，並以1000va雙降壓式半橋逆變器為例進行了實驗驗證。
  11. The widely applications of nonlinear instruments have produced many high order harmonics, they are flowing into the power network and greatly influence the quality of electric power. and the frequency is n ' t constant but changed around 50hz

    電網中非線性設備的使用日益增多，所產生的高次諧波電流大量注入電力線路中，使得電網電壓、電流波形發生畸變，同時電網頻率並不是固定不變的，而是在50hz附近波動。
  12. In electronics, a circuit for converting ac voltage to low voltage dc in such a way that the output is regulated to minimize noise and voltage fluctuation

    在電子技術中，把交流電轉換成低電壓直流電的一種電路。這種電路的輸出是經過調整的，使它的噪聲及電壓波動都很小。
  13. We introduce in detail the circuit current and voltage when the relay is switch - on and switch - off, and make the software in dos and windows. the equipment can dynamic shows the wave of the current and voltage when the relay is switch - on and switch - off

    在檢測方面，分別完成了dos和windows平臺控制軟體設計，實現了繼電器觸點閉合與打開時的電壓、電流波形的動態顯示功能。
  14. The micro - step control is proposed to reduce the torque ripple and achieve more accurate position ability

    研究表明，採用微步控制后，可有效地減小電流波動。
  15. 3 scan controlling card the same kind of circuitry board which compatible outdoor one in fourth scan, one in second scan and the whole static state work way 4

    3控制卡：採用全鎖存靜態恆流工作方式，在提高亮度的同時降低系統發熱，在扼制系統電流波動同時有效地控制色溫。
  16. The results prove that the scheme increases the stability of electrode apparently, current fluctuating has been reduced, speed of system echo has been improved. the system has fine self - adaptive ability and fine ability to resist interference

    現場調試結果表明採用的控制方法大大提高了電極控制的穩定性，電弧電流波動降低，系統的快速性大大提高，系統具有較強的自適應能力和魯棒性。
  17. Second, a direct torque control for pmsm based on stepping spwm is analyzed. in classic dtc system, the torque and current ripples are larger because of the restriction of the number of voltage vectors. by means of the vectors subdividing theory, using a new method of dividing voltage vectors based on stepping spwm, more voltage vectors on a circle in space can be achieved

    其次考慮到上述的經典的dtc演算法中，由於電壓矢量個數（六個）的限制，使得轉矩波動和電流波動都比較大；針對於此，本文利用矢量細分原理，提出了新的基於階梯spwm的電壓矢量生成方法，得到了更多的空間上均勻分佈的電壓矢量，可對電壓矢量進行更加有效的選擇。
  18. In this paper point to point control, constant frequency control and up and down frequency control are studied, in which current lagging loop control method is used to restrict over currents. and using flux tracking method, position open loop, position close loop control system are also studied. and research results indicate that larger current ripples are restricted by means of subdividing space vectors

    本文以永磁同步電動機為研究對象，分別對同步電動機的點動控制、恆頻控制以及升降頻控制進行了分析與研究，研究中採用了電流滯環控制方法，可有效地限制過電流現象；此外採用磁鏈跟蹤法對位置開環和位置閉環的步進控制系統分別進行了探討與研究，研究表明，採用矢量細分后，可有效地減小電流波動。
  19. But if we use chaotic phenomenon directly, three disadvantages exist : ( 1 ) the applied range was limited by dynamic character of the dc / dc converter system ; ( 2 ) high current fluctuation is found, and it is hard to be controlled ; ( 3 ) high output voltage fluctuation

    但是利用dc / dc變換器系統本身的混沌現象來提高電路的電磁兼容性，存在著三個方面的不足： （ 1 ）應用范圍受到系統本身動力學性質的限制； （ 2 ）電路中的電流波動大，難以控制； （ 3 ）輸出電壓波動大。
  20. Resistive screens are the oldest most widely used and least expensive and they work with any stylus finger pen capacitive screens must be touched by a finger or an electrically grounded stylus to conduct current

    電容式熒幕必須使用手指，或是接有地線的觸頭，以便傳導電流。波動式熒幕則是最新且最昂貴的類型。
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