繞組對 的英文怎麼說

中文拼音 [ràozǔduì]
繞組對 英文
pair of windings
  • 繞 : 繞名詞1. [書面語] （彎曲） bend2. （姓氏） a surname
  • 組 : Ⅰ名詞1 （由不多的人員組成的單位） group 2 （姓氏） a surname Ⅱ動詞（組織） organize; form Ⅲ量詞（...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  1. Powerformer have some changes in constract with the conventional generator ， subsequently it also have some new problems in order to have an economical ， efficient ， credible development and application the structure and the philosophy of electromagnetism of powerformer will be on speaking terms changes electrical design ， magnetism design ， thermal design and structural design are have some new changes above all ， the electromagnetism parameter and the harmonic magnetomotive force of powerformer are studied in this paper first ， it mainly utilizes analytics to deduce formula of slot leakage reactance it considers three instances ， including monolayer - slot ， multilayer isometric - slot and multilayer anisometric - slot then ， the analytics and the fem are utilized to calculate slot leakage reactance of stator winding of prototype of powerformer and compare their results second ， the theory of utilitzing fem to calculate the reactance of powerformer is simply introduced ， including stable reactance ， transient and subtransient reactance specially ， the saturated influence of the stable reactance is considered then ， the results are analysed final ， it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding then ， it mainly analyse harmonic magneto - motive force of stator winding through arranging various arrays of stator winding and observe their influence

    基於上述原因，本文對powerformer的電磁參數以及定子繞組諧波磁勢進行了研究。首先是用解析法推導出powerformer定子繞組槽漏抗的計算公式，考慮了單層圓形半閉口槽、多層等半徑圓形半閉口槽和多層不等半徑圓形半閉口槽三種情況，並對powerformer樣機的定子繞組槽漏抗用解析法和有限元法進行了計算，並比較其結果；其次，簡要介紹了有限元法計算powerformer電抗參數的原理，包括穩態電抗、瞬態電抗和超瞬態電抗，對穩態電抗考慮飽和影響，對結果進行分析；最後，介紹定子繞組諧波磁勢對電機運行性能的影響並對定子繞組諧波磁勢進行了分析。然後通過對定子繞組進行不同排列來分析定子繞組諧波磁勢，看看繞組排列對諧波磁勢的影響。
  2. In this thesis, the author analyses the deficiency in detecting and controlling function of the computer detecting and controlling system utilized in present transforming station. the strategy of design of software on operation and direction of 5 00kv transformer station is presented. it points out that we can deduce the mathematic analytical formula using the current, voltage and power of two terminals of transmission line as input. on this basis, we do realtime calculation of 500kv transmission line ' s parameter. we can also deduce the linear analytical formula of three - winding autotransformer ' s resistence using its current, voltage and power as input. the corresponding software is programmed on this basis

    論文提出以輸電線路本端和對端電流、電壓、功率作為輸入量，導出了超高壓長線的波阻抗和傳播常數的數學解析式，在此基礎上進行了500kv輸電線路實時參數計算；提出以三繞組自耦變壓器的電流、電壓、功率為輸入量，導出了自耦變壓器繞組的電阻、電抗的線性解析式並進而對變壓器的實時參數進行計算；在此基礎上編制了相應的軟體。
  3. The control system with such method is simulated and a inverter is made for speed control of single - phase motor. the method presented in this paper offers such advantages as easy implementation, large range of frequency and rapid dynamic response. furthermore, using this method, the single - phase motor with symmetrical or dissymmetrical windings can operate symmetrically

    本文提出的變頻調速控制方法具有系統設計簡單易實現，調速范圍大，動態響應快等特點，而且在電機繞組對稱和不對稱兩種情況下均可實現變頻調速的對稱運行。
  4. The two - point to earth short fault may cause short currents whic h can lead to serious accident. so it is necessary to monitor the state of field windings of turbo - generator and detect the kind of fault and predict its inclination. thus the security level of power system will be improved

    由於發電機轉子兩點接地故障時會產生較大的短路電流，導致惡性事故的發生，因此對發電機轉子繞組進行狀態監測，判斷短路故障的形式和趨勢是十分必要，有助於提高系統安全運行水平。
  5. The calculation method using in factory has larger error and is n ' t used in high ignition point oil transformer. in this paper a calculation method, which has been verified by experiment results, is presented based on the fundamental theories and rule equation of heat transfer to calculate the temperature rise of average oil, top oil, coil, core and hot - point. a program has been compiled

    本課題立足於工程實際應用，根據傳熱學基本原理和經典試驗換熱準則式，通過對變壓器發熱冷卻原理進行分析和研究，提出了一套計算變壓器平均油溫升、頂油溫升、繞組溫升、鐵芯溫升和最熱點溫升的計算方法並編制了計算軟體，對影響變壓器溫升的因素進行了分析。
  6. The relations between relative measurementerror resulting from temperature and heat distensibility coefficient of coil ’ s framework andwindingcoilwerecarriedout. theinfluenceofelectromagnetisminterferenceontheaccuracyof rogowski coil, as well as the effect of temperature on integraph, were studied. somemeasures based on the above investigating results were proposed to insure the precision ofrogowski coil sensor head, such as the selection of materials and facture methods, improvment of technics and design of additional compensation

    利用建立的rogowski線圈的數學模型對溫度和外界干擾磁場的影響進行了分析，得出了溫度造成的相對誤差與線圈骨架和繞組線圈熱膨脹系數之間的關系;從兩個方向上分析了干擾磁場對線圈精度的影響;分析了溫度對積分器的影響等。
  7. Next, in order to comprehand the electromagnetic characteristics and the dynamic characteristics of the new type of magnetic micromotors, the dissertation applied the concept of the magnetic scarlar potential of the irrotational magnetic fields and set up the mathmatic model for the inner magnetic field of the new type of motors from the basic equations and the boundary conditions of the motor magnetic field. oh the basis of the mathmatic model, the dissertation analized the various qualities of the magnetic field of the air gap between the rotor and the stator and gave a detailed calculation of the air gap ' s magnetic potential, magnetic field intensity, magnetic induction, the shape of the magnetic scarlar potential level surface, the distribution of the magnetic circuit, the magnetic induction the self - inductance and the mutual inductance of the coils

    其次，為全面了解這種新型電磁電機的電磁特性和動力特性，本文從電機磁場的基本方程及其邊界條件出發，應用無旋磁場的標量磁位概念，建立了端面搖擺式電磁微電機內部磁場的數學模型，並以此為基礎，詳細分析了電機氣隙磁場的各方面性質，對氣隙磁場的磁標位、磁場強度、磁感應強度、等磁位面形狀、電機工作磁路的分佈、電機的工作磁通量以及激勵繞組的自感和相互之間的互感進行了詳細的分析計算。
  8. Two kinds of new on - line monitoring methods, which are based on measuring primary, secondary currents and voltages to calculate the short - circuit reactances of windings for detecting the deformation windings of power transformer, are proposed in the paper. the methods used for on - line measuring the short - circuit reactances of traction transformer in electric railways, are designed

    本文提出了兩種在線監測變壓器繞組變形的方法，通過在線監測變壓器繞組原、次邊的電壓和電流量，實時計算變壓器繞組的短路電抗來判斷變壓器繞組變形情況，並對電氣化鐵路主要接線型式的牽引變壓器繞組變形的在線監測方案進行了設計。
  9. However, the result of the simulation, in which all the parameters are kept constant except the primary and secondary inductance, is that 3 % higher conversion efficiency can be achieved in ccm than in dcm

    但對輸出功率和繞組電阻相同時逆變電路模擬結果表明， ccm的效率比dcm提高了三個百分點；試驗結果說明盡管ccm的繞組電阻比dcm的大，變換器效率仍提高了1 . 5 。
  10. In the next place, the paper analyses systematically high frequency coaxial winding transformer applied to the load of series resonance converter, puts up its mathematical model, and presents a optimum design

    其次，文中對串聯諧振逆變器的負載高頻同軸繞組變壓器進行了系統分析，給出了數學模型，並提出了優化設計方案。
  11. Based on the analysis of the magnetic characteristics, an artificial nerural network can be built and the fault samples can be gained by theoretical arithmetic. the results of computation example show that the method can not only judge if shorted field turns exit but also estimate fault turns ratio

    根據該結論構建了發電機故障診斷的神經網路，並直接獲得發電機在額定運行工況下對應的故障樣本，用於故障診斷，不僅對轉子繞組匝間短路故障的存在性，還對故障的嚴重性做出了正確的判斷。
  12. Based on the result, the fault diagnostication according to fault record data and locating the fault position of staor wtndings are put forwar for the first time, it is innovative and practical

    在此基礎上，首次提出用錄波數據對定子繞組匝間短路和相間短路進行故障診斷，確定故障點在定子繞組上的相別和匝數，有創新、有實用價值。
  13. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。
  14. This paper proves that the changes of pre - compression on the windings have effects on their natural frequencies and derives their relation, which provides the experimental and theories foundation for fault diagnosis of large - scale electric transformers

    通過對大型變壓器繞組進行振動實驗和根據建立的變壓器繞組軸向振動數學模型的理論推導，闡明了變壓器繞組預緊力的變化與其固有頻率變化之間的關系，這為大型變壓器的故障診斷提供了理論與實踐依據。
  15. To resolve the situation that the sensitivity of present ground fault protection schemes is low for the large - sized hydro - generators, a kind of protection scheme based on the fault component of third - harmonic voltage and two kinds of protection scheme based on the fault component of zero - sequence voltage at the terminals and neutral are developed, and they can obtain higher sensitivity and reliability and provide 100 % protection for the stator windings. the influence of noise on the stator ground fault protection based on the local modulus maximum of wavelet transform is analyzed

    針對目前大型水輪發電機定子繞組單相接地保護靈敏度偏低的問題，通過分析單相接地故障后機端和中性點零序電壓的變化特點，提出了一種基於機端和中性點三次諧波電壓故障分量和兩種基於機端和中性點零序電壓故障分量的高靈敏度、高可靠性保護方案，並實現定子繞組的100 %保護。
  16. By regulating the compensation current injecting into the compensation winding of the reactor, the reactor inductance at different harmonic frequencies can be independently and continuously adjusted

    有源電抗器由一對耦合繞組和一個補償電流發生器組成，通過控制有源電抗器補償繞組中的諧波磁通補償電流，可以獨立且連續地調節電抗器在不同諧波頻率下的電感量。
  17. In this background, this paper studies a new type of squirrel - cage induction generator system, dual stator - winding induction generator system which can be used in the wind generating system. firstly, the simulation model of dual stator - winding induction generator system is established by matlab

    本文正是在此背景下對一種新型的、適用於變速恆頻風力發電系統的鼠籠型感應電機發電系統? ?定子雙繞組感應電機高壓直流發電系統進行了研究。
  18. The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed

    本文對空芯動圈式直線同步電動機進行了深入細致的研究，內容包括： （ 1 ）採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式（集中電流法、分佈電流法） ，同時介紹了兩種永磁電機氣隙磁場計算方法（磁荷法，直接求解拉氏方程法） ，分析各種方法的優缺點，討論電機參數對氣隙磁密的影響； （ 2 ）介紹了單層同心繞組的布置方式，根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式，分析靜態力?位移特性； （ 3 ）建立空芯動圈式直線永磁同步電動機動態模擬模型，模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。
  19. In the end, the experiment on a single - phase motor with symmetrical windings is made by the inverter. experimental results verify the feasibility of the voltage - vector pwm method of variable frequency control for single - phase motor

    最後，利用製作的單相變頻器對繞組對稱的單相電機進行了變頻調速實驗，實驗結果驗證了單相電動機電壓矢量式pwm變頻調速控制方法的可行性。
  20. In order to analyze the characteristics of stator ground fault and develop its protection schemes, a mathematical model for large - sized hydro - generators is established based on the multi - loop theory of ac machines and considering the capacitance to ground and actual construction of the stator windings

    為了詳細分析大型水輪發電機定子繞組單相接地故障特點，校驗和開發相應的保護方案，本文建立了以交流電機多迴路分析方法為基礎、考慮定子繞組對地電容、採用實際繞組結構的發電機定子繞組單相接地故障模擬模型。
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