轉子電阻起動 的英文怎麼說
中文拼音 [zhuǎnzidiànzǔqǐdòng]
轉子電阻起動
英文
rotor resistance starting- 轉 : 轉構詞成分。
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 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...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 起 : 起Ⅰ動詞1 (站起; 坐起) rise; get up; stand up 2 (取出; 取走) draw out; remove; extract; pull 3...
- 電阻 : (物質阻礙電流通過的性質) resistance; electric resistance (電路中兩點間在一定壓力下決定電流強度...
- 起動 : start (a machine, etc. ); switch on起動電動機 starting motor; 起動器 starter
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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。Combined with the peuliarity of pmsm, the pmsm starting - torque and starting - current are studied, analyze why we chose such a rotor ' s slot, at the same time, generalize how to calculate the resistance of the rotor
第四部分結合永磁同步電動機的自身特點研究了樣機的起動轉矩和起動電流,並分析了樣機所選轉子槽形,同時得出永磁同步電動機< wp = 5 >轉子電阻的計算方法。In the process of parameters identification, the stator voltag is considered as input quantity and the stator current and motor rotate speed are considered output quantities. the rotor resistance and leakage inductance are estimated on - line and the identification results is got at last
在參數辯識過程中,以電機起動時的定子電壓為輸入量,定子電流和電機轉速為輸出量,對復合籠條轉子感應電動機轉子電阻和漏感進行在線估計,最後得到轉子電阻和漏感的辨識結果。This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions, which is independent or little dependant with the viscoelasticity of polymer matrix. three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2, 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe. in this system, the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix, so the vibration fades away
本論文主要包括三個方面的研究內容: ?氯化聚乙烯( cpe ) /壓電陶瓷( pzt ) /氣相生長碳纖維( vgcf )復合材料; ? cpe /雙[ ( 2 -羥基- 3 -環己基- 5 -甲基) -苯基]甲烷( zkf ) / vgcf復合材料; ? cpe基有機小分子混雜型復合材料cpe / pzt / vgcf減振復合材料:利用壓電和導電填料填充高聚物基體,當復合材料受到機械振動時,通過高聚物基體將機械振動能傳遞到壓電陶瓷粒子上,利用壓電陶瓷的壓電效應,將機械能轉換成電能,則電流在導電粒子產生的迴路中流動,由於導電迴路具有一定的電阻,所以電能又轉變成熱能耗散掉,從而起到減振的目的。In this thesis, the basic operation theory of salient - pole synchronous motors is discussed ( based on the analysis of the electromagnetic relationship among stator winding 、 rotor winding and damper winding, the transitional process of salient - pole synchronous motors ( asynchronous starting, the thesis provids a novel control method and connection of exciting winding during salient - pole synchronous motors ( asynchronous starting
本文論述了凸極同步電動機的基本運行原理,在分析了凸極同步電動機定、轉子繞組及阻尼繞組的電磁關系的基礎上,研究了凸極同步電動機異步起動的過渡過程,提出了一種新型的凸極同步電動機異步起動過程中勵磁繞組控制方法和線路。Finally, the wave equation of the electromagnetic field of this kind damper is derived from the maxwell ' s equation. the magnetic flux density at the boundary is assumed to be harmonic, so the analytical result of the wave equation is solved. when the rotor rotates, eddy currents flowing inside the conducting material field are caused
最後,應用ahrens的電磁軸承簡化模型,從maxwell方程出發推導了應用於本文所述的被動式電磁阻尼器的波動方程,並用傅立葉級數把矩形磁場展開的諧變磁場作為磁場的邊界條件,通過求解波動方程得到磁場的解析解,從而計算了阻尼器對轉子的電磁力和由渦流引起的切向力產生的阻尼器附加功耗。Meanwhile, many problem was caused by using these technology and put forward corresponding handling method such as how to avoid congestion in mail queue because of sending document to thousands of people, how to distinguish which document is either mail message or document sent by office worker
在運用上述技術實現具體功能的過程中遇到的問題:公文群發引起的郵件隊列阻塞、區分普通郵件消息和公文消息提出了解決方法。另外,充分利用郵件系統自身的功能來完成電子公文流轉的某些特定功能:公文到達后的自動回執確認。分享友人