電動勢法 的英文怎麼說

中文拼音 [diàndòngshìfǎ]
電動勢法 英文
emf method
  • 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...
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 電動 : motor driven; power driven; power operated電動擺 motor pendulum; 電動扳手 electric wrench; 電動泵...
  1. Measuring method for thermoelectricity force of precious metals and their alloys pair up with platinum

    貴金屬及其合金對鉑熱電動勢的測試方法
  2. Determination of conductivity type in germanium by thermoelectromotive method

    用熱電動勢法測定鍺導電類型
  3. Standard test method for thermal emf test of single thermoelement materials by comparison with a reference thermoelement of similar emf - temperature properties

    與有相同電動勢溫度性能的標準熱電偶相比較測定單個熱電偶材料的熱電動勢的標準試驗方法
  4. Standard test methods for thermocouple materials. part 2 : methods for measuring the thermoelectric force of base metal thermocouple wires

    熱電偶材料試驗方法第2部分：廉金屬熱電偶絲熱電動勢測量方法
  5. For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions

    針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機，本文提出一種基於六個離散位置信號的自同步svpwm （電壓空間矢量法）控制方法，用以削弱電磁轉矩脈動，分析了實現這種方法的主要控制環節，包括起動時電壓空間矢量的初始定位，阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。
  6. Furthermore, this dissertation also gives a comprehensive analysis and comparison to the torque ripple factor, torque - current ratio and other aspects for pseudo - sinusoidal emf bldcm drived by 120 conduction mode, 180 conduction mode and self - synchronous svpwm mode respectively. the simulation and the experimental results indicate that self - synchronous svpwm method is more effective for minimizing the torque ripple without any expense of the torque - current ratio when the crest width of the back - emf waveform is less than 107 electrical angles

    對準正弦波反電動勢無刷直流電動機在120導通方式、 180導通方式和自同步svpwm三種控制方式下的轉矩脈動系數、轉矩電流比等方面進行了全面的分析與比較，模擬研究和實驗結果表明，當反電動勢的平頂寬度小於107電角時，採用自同步svpwm控制方法可以在不損失轉矩電流比的基礎上，更有效地抑制電磁轉矩脈動。
  7. Revising method of thermal electromotive force

    熱電動勢修正法
  8. Test method for thermoelectric power of precision resistance alloys

    精密電阻合金熱電動勢率測試方法
  9. The test method of thermo - emf for platinum rhodium thermocouple thin wires

    鉑銠熱電偶細絲的熱電動勢測量方法
  10. Testing method for thermo - electromotive force of metallic resistance materials

    金屬電阻材料的熱電動勢的試驗方法
  11. And the subroutine is developed to add the periodic condition in the commercial 3d fem software. 3d electromagnetic field analysis is done to analyze the magnetic flux distribution in the tfpm. base on the field analysis, the mathematical model is given

    採用簡化的三維電磁場計算方法對橫向磁通永磁電機內部磁通分佈進行了研究，計算了各部分的磁通密度分佈和漏磁通的走向，得到了電機的空載漏磁系數及空載反電動勢以及主要的漏磁通分量。
  12. In this chapter, the method of bldcm rotor position detection is first discussed. then the principle and algorithm of bemf zero crossing point detection is explained. in succession, the chapter dissertates the software realization of the bemf zero crossing point detection algorithm, the software disturbance filter and the modification of phase displacement, and the software realization of commutation point

    在這一章中，先簡述了無刷直流電機的轉子位置器檢測方法；然後論述了反電動勢過零檢測原理和演算法以及該演算法的軟體實現、軟體濾波和相移修正、換相點的軟體實現；最後對軟體開環換相起動策略作了詳細論述。
  13. An attempt is made to explore self - induced emf in theory by a quantitative means, and to demonstrate the corresponding contents or its experimental design by using the instruments such as voltage effect and digital oscillograph

    摘要用定量研究的方法，從理論上對影響自感電動勢產生和測量的因素進行了探討分析，同時用「電壓效應」和數字示波器等儀器對相應內容進行了演示或驗證性實驗。
  14. Based on the experiment of nimh battery, investigations on characteristics of discharging and charging of nimh battery, and analysis of influencing factor of nimh battery, an approach of ah ? coe ? ocu has been carried out to estimate an accurate surplus energy and state of charge of nimh batteries, and consider the compensation of the temperature, aging and self - discharging etc. after theoretic analysis has been completed, simulations are given to determine parameters of batteries for changan hev

    本文在蓄電池試驗的基礎上，分析和研究ni - mh蓄電池充放電特性及其影響因素，建立了電池內阻、電動勢模型，提出了安時?能量守恆?開路電壓演算法（ ah ? coe ? ocu法）預測蓄電池的剩餘能量和荷電狀態計算方法，並進行溫度、循環使用壽命、自放電等補償，從而建立了蓄電池的充放電模型。
  15. The speed sensorless techniques for dtc system are very fascinating and challenging subjects recently, they are received wide attention in the literature. some brief description is provided. the proposed approaches are based on speed model of dtc, motor reference adaptive control, the instantaneous reactive power of motor and the extended kalman filter

    無速度傳感器調速系統是直接轉矩控制研究領域內一個非常熱門的研究方向，本文介紹了無速度傳感技術的發展歷史及目前的研究狀況，分別利用直接轉矩控制的轉速模型方法，模型參考自適應方法、電機定子反電動勢以及擴展的卡爾曼濾波器等方法設計了無速度傳感器系統，對于其數學模型和系統構成作了比較詳細的推導。
  16. To guarantee the validity and speediness insimulation, the back - emf is generated using piecewise linear curves. in the double loop of control system, a pi controller is adopted in the speed loop and a hysteresis current controller is adopted in the current loop

    為保證模擬快速性和有效性，模型採用分段線性法生成梯形波反電動勢，系統採用雙閉環控制:速度環採用pi控制，電流環採用滯環電流控制。
  17. Then the thesis detailedly dissertates its research pivot : the software realization of sensorless commutation detection based on the method of back electromotive force ( bemf ) and open - loop commutation start - up

    然後，詳細論述了本文的研究重點：基於反電動勢法的五位置傳感器換相檢測和開環換相起動的軟體實現。
  18. The thesis first probably explains brushless direct current motor ( bldcm ), and discusses the related control methods, explains the background and meaning of back electromotive force ( back - emf ) which is used in the thesis. then the thesis expounds the basic component parts, the basic running principle, the running characteristic and transfer function of the bldcm. and then the thesis detailedly dissertates its research pivot : the simulation of bldcm system in matlab based on the method of back - emf and the control system of digital signal processor ( dsp ) based on the method of back - emf

    本文首先對無刷直流電機進行了概述，並對其相關控制方法進行了討論，說明本文所採用反電動勢法的背景和意義;接著論述了無刷直流電機基本組成環節、基本工作原理、運行特性和傳遞函數，然後是詳述本文研究的重點:基於反電動勢法的matlab調速系統的模擬以及基於反電動勢法的dsp控制系統的實現。
  19. Standard test methods for thermocouple materials. part 1 : methods for measuring the thermoelectric force of noble metal thermocouple wires

    熱電偶材料試驗方法第1部分：貴金屬熱電偶絲熱電動勢測量方法
  20. This topic discusses the back - emf zero - crossing detection, the method of phase judging and compensation in detail. in order to improve the speeding performance we adopt the digital closed - loop speed control strategy

    詳細介紹了反電動勢過零檢測、相位判斷及相位補償的原理及實現方法，並且為了在較寬范圍內提高bldcm的調速性能，採用了數字式轉速閉環控制。
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