電流誤差 的英文怎麼說

中文拼音 [diànliúwùchā]
電流誤差 英文
current error
  • 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...
  • 誤 : Ⅰ名詞（錯誤） mistake; error Ⅱ動詞1 （弄錯） mistake; misunderstand 2 （耽誤） miss 3 （使受損害...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  • 誤差 : error
  1. In digital relay, the percentage of noise will increase rapidly with the increase of sampling rate when derivation calculus is substituted by sampled difference term. to solve this problem, a new method using fragment function integrated with the least square algorithm is proposed in this paper. the influence of white noise is greatly reduced and the accuracy of the dead angle calculation is nicely improved after adopting the new method

    在數字式保護中，如果用差分代替求導將導致噪聲的百分比誤差隨著采樣頻率的提高而劇增，本文對此進行了分析並提出了用分段樣條函數最小二乘法來計算電流波形的導數值，以便在提高采樣率的同時降低噪聲誤差的影響，並將其應用於基於32位浮點dsp的新型變壓器保護裝置。
  2. This paper selects dc double - arm bridge, uses the four - port connection to remove the contact and connection resistances and reduce the electromagnetism interfere. grounding grid conductors fault levels are established during a lot of emulational computations, simulative experiments

    使用直流雙臂電橋，採用四端鈕連接法，可大大降低現場中電磁干擾及引線電阻和接觸電阻的誤差影響。
  3. In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage

    我們對兩種正交調制方式（ 16qam和4 - qpsk ）進行了模擬工作並給出了模擬結果，同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試；然後在基於軟體無線電思想的數字處理平臺（該數字處理平臺實現了中頻數字化）上用dsp軟體完成了載波的相位跟蹤。
  4. The method that measuring horzontal component of the earth magnetic field with digital quantometer is introdnces, the computational formule are given, systematic error are discussed, the advantages of the this method with tangent galvanometer measuring horizontal component of the earth magnetic field are simply expounded

    摘要介紹了用數字沖擊電流計測量地磁場水平分量的方法，給出了計算公式，對系統誤差進行了討論，簡述了該方法與用正切電流計法測量地磁場水平分量的優點。
  5. The production of yongsheng company, s paper cellular sandwich boards adopts the present - day internationally advanced, computer - controlled production line which eliminates the factor of man - made errors and thus enables the prodrct quality to be stdady and reliable

    永盛公司生產的紙蜂窩夾芯板，採用目前國際上先進的電腦控制生產流水線，消除了人為誤差因素，產品質量穩定可靠，特別是產品帶有塑料保護薄膜，不損壞彩鋼板表面塗層，確保質量。
  6. A common mistake and its harm in ct secondary connection of transformer differential protection were analyzed, the correct connection mode was explaned, and how to use the hexagon vector diagram of checking was introduced

    摘要分析了一種常見的變壓器縱差保護電流互感器錯誤接線及其危害，說明了正確接線方式，並介紹了如何通過作六角圖來檢查縱差保護二次接線的正誤。
  7. In general, a precise resistor is in series with one of the resistors in wheatstone bridge to compensate the zero offset, and the other one is in parallel with another arm of the wheatstone bridge to compensate thermal zero drift. based on this principle, in this paper, a compensation method based on virtual instrument technology has been put forward. actuated by current source, a good calculation method of compensation resistors and their position in the bridge is deduced

    本文基於串並聯電阻補償法的原理，提出了一種基於虛擬儀器的誤差補償方案，推導了在恆流源供電下可以精確的計算出補償電阻大小和補償位置的演算法，並且在虛擬儀器軟體平臺labview上完成了數據採集、處理、顯示等軟體的設計，經過實驗的驗證，對傳感器的零點溫度漂移補償取得較好的效果，而對靈敏度溫度漂移的工藝補償亦有一定的效果。
  8. The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection. prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation, put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years, avoid ct saturation district, can judge the bus bar trouble correctly

    但是在母線區外發生短路故障（特別是故障電流含有大量非周期分量）時， ct會出現飽和現象， ct飽和后，不能正確地傳變一次側電流，從而使二次電流發生嚴重畸變，產生很大的差電流，這樣就容易引起誤動作。防止ct飽和時差動保護誤動作一直是母線保護的一個重要課題，近年來提出的在ct二次電流過零時的線性傳變區投入差動保護，避開ct飽和區，能對母線故障做出正確判斷。
  9. The author has finished the following several jobs in core of the centre : 1 ) the active compensation method based on bang - bang control was put forward to realize the wide range current transformer. the method converts the complex statement space to i / o description by the two - stage current transformer. with the compensation method, the accuracy of 0. 2 grade current transformer can be improved to less than the 0. 1 grade standard at 100 % rating when the primary side current is changed from 2 % to 120 % of the rating

    圍繞這一工作核心，作者完成了以下幾項工作： （ 1 ）以實現寬量程電流互感器為目標，提出了基於bang - bang控制的有源補償方法，採用雙級電流互感器，將復雜的狀態控制分量轉化為偏差控制，該方法結構簡單，調試方便，有源補償器輸出電流小，可以將0 . 2級的電流互感器經過補償后提高到一次電流從額定值的2變化到120時，測量誤差不超過一次電流額定值100時準確度為0 . 1級的測量標準。
  10. The bus differential protection based on instantaneous values of currents is the most useful scheme nowadays. but it is easy to be influenced by current transformer saturation and to make misoperation

    目前微機保護最常用的方法是電流瞬時值差動保護，這種方法受電流互感器（ ta ）飽和的影響而容易誤動。
  11. For the breakers with abjustable instantaneous tripping characteristics, the tripping current is shown in the following tables with tolerance of 20 separately, please note when ordering

    瞬時動作特性可調的斷路器其動作電流如下表動作電流誤差為20 ，訂貨時請註明。
  12. Specific issues examined are : compensation for the variation of the stator resistance, the offset error of the dc bus voltage, the voltage error generated by the forward voltage drop the dead time of the switches, improvement of the steady state performance, and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis

    定子電阻變化，直流母線電壓漂移，開關器件反向相電壓降、逆變器死區時間引起的電壓誤差的補償，提高系統穩態運行性能以及永磁同步電機直接轉矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉矩的快速響應是直接轉矩控制演算法的一個卓越的性能。
  13. Subcircuit models are designed and simulated, which includes bias current source, voltage reference, error amplifier, pwm comparator, driver circuit, protection circuits for over - temperature, over - current. at last, combined with periphery component, the circuit is simulated, and the result meets the anticipant requirement

    並對集成電路內的各個模塊包括電流偏置電路、基準電壓電路、誤差放大電路、三角波振蕩發生電路、 pwm比較電路、驅動電路、過熱保護電路和過流保護等進行了具體的設計和模擬，並對整體應用電路進行了模擬，結果均達到了預先設定的指標。
  14. A deadbeat controller is utilized in the stationary frame, eliminating the machine back electro motion force with an assumption that it is a constant in one sampling interval

    通過差分消去電機模型中的反電動勢，利用補償電壓進一步消除電流誤差。
  15. But often what is not obvious when reading a manufacturer ' s data sheet is how the initial accuracy of the device is affected by other key device parameters such as line regulation, load regulation, initial voltage error, output voltage temperature coefficient ( tc ), output voltage noise, turn - on settling time, thermal hyste - resis, quiescent supply current, and long - term stability

    但，人們閱讀廠家的數據手冊時，因受諸如（電源電壓）線性調整率、負載調整率、初始電壓誤差、輸出電壓溫度系數tc 、熱遲滯（系數） 、靜態電流和長期穩定度等參數的影響而使初始精度往往不明顯。
  16. In the light of the principle of pipeline adc, this paper analyzes the error, points out the main reason, introduces digital error - correction technology and capacitor error - averaging technology, and proposes a solution based on these technologies

    摘要從流水線adc工作原理出發，對誤差進行了分析，指出了主要原因，介紹了數字校正技術和電容誤差平均技術，並結合數字校正技術和電容誤差平均技術提出了解決方法。
  17. A sub - circuit model for vdmos is built according to its physical structure. parameters and formulas describing the device are also derived from this model. comparing to former results, this model avoids too many technical parameters and simplify the sub - circuit efficiently. as a result of numeric computation, this simple model with clear physical conception demonstrates excellent agreements between measured and modeled response ( dc error within 5 %, ac error within 10 % ). such a model is now available for circuit simulation and parameter extraction

    從vdmos的物理結構出發建立子電路模型，進而導出描述其交直流特性的參數及模型公式.相對以往文獻的結果，該模型避免了過多工藝參數的引入，同時對子電路進行了有效的簡化.在參數提取軟體中的加載結果表明，該模型結構簡單，運算速度快，物理概念清晰，擬合曲線與測試數據符合精度高（直流誤差5以內，交流誤差10以內） ，適于在電路模擬及參數提取軟體中應用
  18. Abstract : a sub - circuit model for vdmos is built according to its physical structure. parameters and formulas describing the device are also derived from this model. comparing to former results, this model avoids too many technical parameters and simplify the sub - circuit efficiently. as a result of numeric computation, this simple model with clear physical conception demonstrates excellent agreements between measured and modeled response ( dc error within 5 %, ac error within 10 % ). such a model is now available for circuit simulation and parameter extraction

    文摘:從vdmos的物理結構出發建立子電路模型，進而導出描述其交直流特性的參數及模型公式.相對以往文獻的結果，該模型避免了過多工藝參數的引入，同時對子電路進行了有效的簡化.在參數提取軟體中的加載結果表明，該模型結構簡單，運算速度快，物理概念清晰，擬合曲線與測試數據符合精度高（直流誤差5以內，交流誤差10以內） ，適于在電路模擬及參數提取軟體中應用
  19. In this control scheme, the voltage error is processed by pi algorithms first, and then the current of the capacitor which equal to the differential of the voltage is imported to compose a two - loop control

    該方案先對輸出電壓誤差進行pi調節，在此基礎上引入相當于輸出電壓微分的電容電流反饋信號構成雙環控制，使逆變器輸出電壓具有良好的靜態特性和動態特性。
  20. The result of simulation for the closed - loop system in the matlab illustrates that the system can provide unity power factor not only in ideal condition but also in the case of errors in missing of some current

    研究表明系統在理想情況下能實現單位功率因數而且在某相電流誤差信號丟失的非理想情況下仍然能實現單位功率因數控制。
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