定子繞組機 的英文怎麼說

中文拼音 [dìngziràozǔjī]
定子繞組機 英文
stator winder
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 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...
  • 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（...
  • 機 : machineengine
  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. On dealing with earth fault of stator windings in generators

    發電機定子繞組接地故障處理
  3. 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。
  4. The ground faults in the generator stator are by far common faults to which generators are subjected. internal short - circuit faults, which may immediately damage generator, are always preceded by the ground faults. the possibility of internal fault and damages caused by it can be decreased largely if the stator ground fault protection reliably and sensitively operates

    定子繞組單相接地故障是發電機最常見的一種故障，而且往往是更為嚴重的繞組內部短路故障發生的先兆，定子繞組單相接地保護的可靠與靈敏動作可以大大降低內部短路故障的發生幾率，減少故障造成的損失。
  5. Therefore, the stator ground fault protection plays an important role in the protection system of generator. at present, the large - sized hydro - generators, such as the generators in three gorges power station, require that the stator ground protection must be with very high sensitivity, so that it is beyond the capacity of available protection schemes

    定子繞組單相接地保護是大型發電機繼電保護系統中十分重要的一項內容，而現有保護方案難以滿足目前大型水輪發電機（如三峽電站機組等）不斷提高的定子繞組單相接地保護靈敏度要求。
  6. The work principle of dual stator - winding induction generator system, and the researches on practical application of dual stator - winding generator system are analyzed in detail. aimed at the work condition of wide rotor speed and optimization of static reactive power generator ’ s volume, the performance of dynamic state and static state and optimal control of high - voltage dc generator system based on dual stator - winding induction generator, are studied in this paper. these researches not only achieve the work characteristic of dual stator - winding induction generator system, but also set up the foundation of optimal design of dual stator - winding induction generator and engineering realization of dual stator - winding induction generator system used in wind generating

    本文闡述了定子雙繞組發電機的基本工作原理，基於matlab軟體建立了定子雙繞組感應電機發電系統的模型，並在此基礎上詳細分析了定子雙繞組感應電機發電系統的工作機理、影響兩套定子繞組容量比的因素等，從而摸清了該系統的特性，尤其是定子雙繞組感應電機高壓直流發電系統在變轉速、變負載下工作的特性，從而為該系統的工程實現奠定了重要的理論基礎。
  7. Analysis for magnetic field of srm is very complicated since the flux waveforms in different parts of the motor vary with motor phase, stator pole and rotor number, also with the winding connections, etc, which results in the srm losses, especially iron loss calculation difficult. the temperature analysis due to the losses has become a study hot spot

    Sr電機鐵心的磁通波形不僅與電機的相數有關，還與定、轉子齒極數、定子繞組連接方式等密切相關，從而使得sr電機磁場分析很復雜，復雜的磁通密度波形導致電機損耗特別是鐵損的計算非常困難。電機的損耗又會引起電機的溫升，因此高性能的sr電機的熱分析也成為目前的研究熱點。
  8. Fault diagnosis for induction motors based on injecting a dc signal

    基於定子繞組等效灌注直流的電機轉子故障診斷
  9. In chapter 2, the mathematical model of two - phase hybrid stepper motor as a generator is established. then according to the model, the functional relationship is obtained between the terminal voltage of stator winding and continuous rotor position

    第二章，建立了二相混合式步進電機的發電模型，並進一步簡化得到定子繞組端電壓與轉子轉角之間的函數關系式，為步進電機實現連續角位移測量的研究奠定理論基礎。
  10. The transient simulation of stator winding inter - turn short circuit fault has been completed successfully based on the multi - loop mathematical model

    基於神經網路技術，提出了以定子負序導納平均值作為故障特徵量的異步電動機定子繞組匝間短路故障檢測方法。
  11. Powerformer is a new high voltage generator ， which use xlpe cable as stator winding instead of rectangular conductor bars ， thereby it overcome the shortcomings which the shape of these conductors results in an uneven electric field distribution with high electric field strenghs at the corners especially and prevents the output voltage of the conventional generator from exceeding about 36kv powerformer offers a direct connection to the network without the need for a step - up transformer as a consequence, there are some merits in the total plant equipped with powerformer, such as high effiency, high availability, low maintaining cost and giving less environmental impact

    Powerformer是一種新型的高壓發電機，它採用電纜代替矩形導體作為定子繞組，從而克服了矩形導體電場分佈不均勻，特別是在矩形導體在導體拐角處電場過于集中而使常規發電機的輸出電壓等級不能高於36kv的缺點，使其能夠直接和輸配電網相聯，這樣就不需要升壓變壓器，同時也使裝配powerformer的電廠具有如下優點高效率、可利用率提高、維修費用降低和降低了對環境的負面影響。
  12. Evaporative cooling has been regarded as a new cooling technology on hydro - generator, and it not only could increase the ratio of material utilization and reduce the difficulties of making large - scale hydro - generators, the running difference in temperature, the stress of the generator ' s stator and the possibilities of the incidental occurrences, but also has better performance than internal water cooling

    蒸發冷卻作為水輪發電機的一種新型冷卻技術，不僅可以提高材料利用率，減小特大型發電機製造難度，降低發電機定子繞組運行溫差和發電機定子的應力，減少事故隱患，更重要的是蒸發冷卻比水內冷具有更好的優越性。
  13. Temperature abnormity of generator stator winding is a familiar failure. to give criterion for early failure detection, this paper has work over getting the normal temperature for the winding on variant condition

    為了給這類故障的早期診斷提供判據，文章對水-氫-氫冷卻的發電機定子繞組溫度在不同運行工況下的標準值的計算方法進行了研究。
  14. This paper briefly presents the theory of the inner evaporative cooling system with pump in generator and a suit of simulation software developed based on it using c computer language

    本文簡要介紹了汽輪發電機定子繞組內部蒸發冷卻的技術原理，著重介紹了一套基於此基礎之上的用c語言開發的模擬軟體。
  15. The thesis realizes the control exciting winding method and the best exciting in towards polarity method provided in this thesis with singlechip ( at90s8535 ) and scr hardware. it proves these methods are accurate and available through the control exciting winding test. analyzing the stator current and exciting current test curves on a salient - pole synchronous motor with 2kw - 4 poles, it solves the starting - difficulty of salient - pole synchronous motors, and improves motors " starting capability

    通過在一臺2kw 、 4極凸極同步電動機上進行異步起動試驗和分析試驗過程中的勵磁繞組電流和定子繞組電流的波形，證明了本文提出的勵磁控制線路的正確性和可行性，較好地解決了凸極同步電動機起動難的問題，同時改善了電機的起動性能。
  16. Under the conditions of high safe coefficient of insulated electrical strength of the stator winding of the generator, the selection of earthing resistance value should meet the needs of matching one - point earthing protection of the stator and limiting the fault current

    在發電機定子繞組絕緣電氣強度有較高的安全系數的情況下，接地電阻值的選取應主要服從與定子一點接地保護的配合及限制接地故障電流的需要。
  17. Over - temperature is detected by a normally - closed switches connected in series and embedded in the motor stator windings

    過熱現象是通過並聯或內置在電機定子繞組的正常閉合開關來進行監測的。
  18. Before connection upon completion of generator ' s mounting, measured insulation resistance of generator ' s winding, dry out the generator if necessary

    發電機安裝完畢接線前，測試發電機定子繞組及勵磁繞組電機繞組絕緣電阻。如果需要，對電機要進行乾燥。
  19. This system is designed to measure motor ’ s three important parameters including stator coil inductance, stalling torque and back emf. all of these test results are used as basis for product detect

    設計這套測試系統用來檢測電機定子繞組電感、堵轉扭矩及反電動勢等三個重要電機參數，把其結果作為檢驗產品質量的依據。
  20. The core loss is an important criterion of its performance. if the core loss is too large, it will be heated and the efficiency will be decreased when add the exciting current to the stator coils

    鐵損是評判電機鐵芯性能的一個重要指標，如果鐵損太大，在定子繞組中加勵磁電流后則會產生發熱和效率下降等不良現象。
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