零相序電流 的英文怎麼說

中文拼音 [língxiāngxùdiànliú]
零相序電流 英文
zero phase sequence current
  • 零 : Ⅰ數詞1 （零數） zero2 （數的空位） zero sign （0）; nought 3 （表示沒有數量;無） nil; nought 4 （...
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 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...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. According to the mis configuration and flows, dfmis - 1 software system has been programmed which is composed of inventory management subsystem, purchasing management subsystem and manufacturing schedule management subsystem. through studying deeply manufacturing schedule management, we find a way to make mrpii and jit be jointed together into manufacturing schedule and monitoring block. the study discusses especially how to make certain the producing period of all of component during dynamic manufacturing with methods of jit and " electronic bulletin ", how to get true capability of implementing plans in all working procedure section, and how to empower monitoring manufacturing in order to avoiding break between working procedure sections

    其中一項就是設計並實施了整個公司的網路綜合布線和計算機系統的配置；第二項是根據公司最急需的功能，從「信息流」 、 「物流」和「資金流」的角度，提出了相適應的mis結構和流程，據此開發出具有庫存、采購和生產計劃管理功能的dfmis - 1軟體系統，並對其中的生產計劃管理模塊進行了較深入的研究，實現了mrpii和jit在生產計劃、生產監督上的結合和應用，特別對利用jit及其「電子看板」在生產動態中確定零部件的生產周期、獲得各工序段實際執行計劃的能力，以及在加強生產監督、避免各工序之間的脫節上做了進一步的探討。
  2. It includes four criterions of locating fault point ? “ transient zero sequence current amplitude law ”, “ stable base wave zero sequence current phase law ”, “ stable seventh harmonic zero sequence current phase law ” and “ s injection law ”. pointing out how the law locate the fault point to minimal fault section by applying these criterions gradually. the law will not only make up the blemishes existing in current methods for single - phase fault location in small current grounding system, but also locate the fault point to minimal fault isolating unit on fault line

    該方法通過將所包含的四個定位判據- 「暫態零序電流幅值法」 、 「穩態基波零序電流方向法」 、 「穩態7次諧波零序電流方向法」和「 s信號注入法」 -進行有選擇地遞進使用，不僅有效彌補了目前已有小電流接地系統單相接地故障選線的缺陷，更將故障定位在故障線路最小故障區段。
  3. Unified power flow controller ( upfc ) is one of the most powerful and most promising controllers of facts. if we use upfc to control the transmission parameters, terminal voltage, line impedance and phase angle in normal situation and use it to compensate zero sequence and negative sequence currents when one of transmission lines is cut off, we can implement two phases operating in high voltage transmission lines, which can improve stability and reliability for the transmission system

    統一潮流控制器（ upfc ）是功能最強、最具發展潛力的靈活交流輸電系統（ facts ）控制器之一，如果在常規條件下，用upfc實現輸電線路的電壓調節、移相、潮流控制、阻尼振蕩等功能，在發生單相永久性接地或單相斷路故障時，由傳統的三相跳閘改為單相跳閘，用upfc的並補來濾除兩端系統的零序和負序電流，用upfc的串補來提高輸電線的傳輸功率，以實現兩相長期運行，那麼輸電系統的穩定性、可靠性將大大提高。
  4. Generally, single phase grounding fault can cause both high phase current and zero sequence current. proper grounding protection set can act reliably and cut off fault

    一般地，單相短路將產生很大的故障相電流和零序電流，相應的接地保護裝置將能可靠動作從而將故障切除。
  5. From the perspective of minimum transmission losses, an instantaneous reactive power theory for systems with any number of phases and with or without neutral line is developed. under the new definition, each quantity has its own physical meaning, and the zero sequence current can be decomposed into active and reactive components. furthermore, a generalized compensation method for zero sequence current is developed

    從輸電損耗最小的角度出發，提出了任意相無中性線或有中性線系統的瞬時無功功率理論，在新的理論下，每個量都有清晰的物理意義，且能分解出零序電流的有功分量和無功分量，並給出了通用的零序電流補償方法，揭示了瞬時無功功率理論與傳統平均意義下的無功功率理論的聯系及本質區別，從而為研究hvdc - vsc及各種facts裝置的無功功率控制奠定了理論基礎。
  6. This method bases on the relativity of the current through zero order line and the sensible current through the perterson coil

    這種方法依據線路零序電流與消弧線圈感性電流的相關性為基礎。
  7. The characteristic of the faulted phase is the same as the traditional method with this new compensation method. the performance of the healthy phase has been improved by this new method

    零序電流的補償採用了自適應方法，對故障相繼電器動作性能不變，對健全相距離繼電器動作性能顯著提高。
  8. The following is the main works and conclusions of this thesis. the novel upfc needs high power rate because it is generally used in high voltage transmission lines. after studied high - power converters and the literatures of upfc, the main circuit topology of novel upfc base on diode - clamping multilevel inverter is presented and the principle of using novel upfc to eliminate zero sequence and negative sequence currents is analyzed

    本文所做的主要工作及得出的主要結論如下：由於upfc一般用於高壓輸電線，其功率等級要求很高，在綜合研究大功率變換器和upfc現有文獻的基礎上，提出了基於二極體箝位多電平變換器的新型upfc的主電路拓撲，分析了用其來濾出高壓輸電線非全相運行時所產生的零序和負序電流的原理。
  9. A new residual current compensation method based on the magnitude of current of each phase that has the clear phase selection ability is presented in this paper. the residual current is compensated in an adaptive manner

    本文中提出一種新的可變補償的方法，對單相距離測量元件提出了零序電流自適應補償方法，演算法本身帶有較強選相功能。
  10. Firstly, we analyze the transient and steady character of single phase high - impedance grounding fault. secondly, based on wavelet analysis on checking mutational signal and direction high frequency protection theory, utilizing zero sequence current and module current, this paper provides a new scheme including fault starting element, fault phase selection element, directional element and main criterion. this scheme can bear high impedance and is immune to system surge and frequency warp, which gets over the shortcoming of the lack of sensitivity

    由於現有的保護方案無法快速有效地切除此類故障，本文在詳細分析了單相高阻接地故障的穩態和暫態特性的基礎上，從小波分析原理出發，利用小波變換檢測突變信號的原理，以零序電流、模電流等為研究對象，結合方向高頻保護的原理，設計了一套包含啟動元件、選相元件、方向元件、主保護的保護新方案。
  11. The zero sequence current transformer is full enclosed type. the secondary windings and iron core are insulated by epoxy resin. the middle hole is used for cable going through

    本型零序電流互感器為全封閉式。二次繞組及鐵芯均澆注在聚脂樹脂內。中間窗孔供三相電纜穿過。
  12. So the line which the one - phase ground fault take place can be discriminated by these

    因此可以利用雙回線路中的零序電流相位差值的變化趨勢來識別故障線路。
  13. The paper put forward new method for single - phase earth faulted line selection in a compensation network. they are separately based on active power 、 variety of residual current and wavelet

    研究了自動補償電網單相接地故障選線的新方法? ?有功法，零序電流變量法、小波法。
  14. Further, the methods are proposed to compare and summarize for choosing fault line and detecting distance in neutral ungrounded system. subsequently, the characteristics of zero sequence current and transient courses are introduced and analyzed

    接著對小電流接地系統單相接地故障時零序電流的暫態過程及特點做了介紹和分析。
  15. Subsequently, the transient course and characteristics of zero sequence capacitive current are introduced and analyzed

    然後對小電流接地系統單相接地時零序電容電流的暫態過程及特點做了介紹和分析。
  16. This paper discusses the size of transient zero current and the method of analyzing it. numeral simulation shows the feasibility of it. negative current at fault line is differ distinctly from non - fault line

    文中討論了零序電流暫態分量的大小和提取方法，對數字模擬和混合模擬試驗數據進行分析，結果表明零序電流暫態分量用於單相接地故障識別是可行性的。
  17. The new standpoint that ip - iq detecting method based on three - phase three - wire system can be directly used in three - phase four - wire system is presented and proved. generalized harmful currents compensation based on multilevel converter and multi - band hysteresis pulse width modulation with timer are presented

    提出並證明了基於三相三線制系統的ip - iq檢測法可直接用於不平衡三相四線制系統有害電流的檢測，無需事先剔除零序電流的新觀點。
  18. There is no literature that discusses using upfc to compensate zero sequence and negative sequence currents and conventional upfc is three - phase three - wire, which cannot deal with zero sequence current, so we must improve the conventional upfc in order to add a function of zero sequence and negative sequence currents compensation

    傳統的upfc為三相三線制結構，不能處理零序電流，因此必須對傳統的upfc進行改進，使其既能保持原有的功能，又能增加濾序功能。我們稱這種改進后的upfc為新型upfc 。
  19. This paper brings forward that asvg is capable of compensating harmonic, negative sequence and zero sequence currents. so asvg can synchronously compensate the reactive current and harmful currents in three - phase four - wire unbalanced system

    本文提出靜止無功發生器還具有抑制諧波和濾除負序、零序電流的能力，從而可以用於對三相四線制不平衡系統同時進行無功補償和有害電流濾除。
  20. By study, we can know that when one - phase ground fault happens on the line, more far the fault location is from where relays place, more less is the difference of the two zero sequence currents, while hen one - phase ground fault happens on the other line, more far the fault location is from where relays place, more is the difference of the two zero sequence currents

    研究表明，當本回線路發生單相接地短路時，在通過公式計算得出的一特定值為正時，離保護安裝處越遠，本回線路零序電流與非故障線路零序電流相位差值越小；當另一回線發生單相接地短路時，離保護安裝處越遠，本回線路零序電流與故障線路零序電流相位差值越大，該值為負時則反之。
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