back electromotive force 中文意思是什麼

back electromotive force 解釋
反電動勢
  • back : n 1 背，背部；背脊；背面，反面；背後，後部，後面，裏面。2 （指）甲；（刀）背；（手）背；（書）背...
  • electromotive : adj. 電動的。
  • force : n 1 力，勢。2 體力，氣力，精力，魄力。3 暴力，壓力；兵力，武力。4 〈pl 〉 部隊，軍隊，兵力。5 勢...
  1. The two key parameters, back electromotive force ( emf ) and reactance of d q axial armature reaction are investigated, too. in the process of asynchronous starting, mathematics model of repmsm is established with 1, 2, 0 complex number coordinate system. combined with the model, electromagnetic torque is studied

    論文還研究稀土永磁同步電動機的異步起動過程，建立了稀土永磁同步電動機起動時的數學模型，並對電磁轉矩的性質進行了研究，論文還提出了起動時電磁轉矩的計算方法，論文對稀土永磁同步電動機的牽入同步過程進行了原理性分析，論文也對電機參數對于電機起動性能影響進行了研究。
  2. Considering the relations between idle load characteristics and armature winding parameters of the salient pole propulsive synchronous motor ( spsm ) with its structure, stator tooth and magnetic saturation, the analysis of numerical method for the back electromotive force calculation of spsm is given under various exciting current values

    摘要針對凸極式同步推進電機的空載特性及其繞組參數與電機結構、定轉子齒槽、磁場飽和等緊密相關的問題，分析了在不同勵磁電流下同步推進電機相反電勢的數值計算方法，提出了採用電機磁場能量微動法計算相繞組的參數，並對一臺十二相同步推進電機的繞組參數及其空載特性進行了計算和測量。
  3. 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。
  4. 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。
  5. On the base of roundly analyzing and studying the running mode of the sensorless bldcm, we explain theories and realizable methods of detecting back electromotive force, phase verdict and phase compensation in detail. in order to improve the timing performance, the control strategy of this system is to use digital speed closed - loop control

    在全面分析研究了無位置傳感器無刷直流電動機運行方式的基礎上，細致闡述了反電勢過零檢測、相位判斷及相位補償的原理及實現方法，並且為了在較寬的范圍內提高bldcm的調速性能，採用了數字式轉速閉環控制。
  6. The structure and starting / generating integral working principle of dsem is firstly explained in this thesis. starting control mode and generating reason of starter / generator were introduced, and the back electromotive force ( emf ) of starting state and generating state was also analyzed

    本文首先闡述了電勵磁雙凸極電機的結構與起動/發電一體化工作原理，介紹了起動/發電機的起動控制模式和發電機理，對起動/發電機起動狀態和發電狀態的反電勢進行了分析。
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