current transmission system 中文意思是什麼

current transmission system 解釋
電蓮輸系統
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  • transmission : n 遞送；傳遞；傳達；傳染；移轉；【機械工程】傳動；傳遞；變速器；聯動機件；【無線電】傳送；發射；...
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. 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。
  2. The ultrahigh - voltage direct current ( uhvdc ) link comprises two substations and a power transmission system using breakthrough technology to transmit electricity at ultrahigh voltage ( 800 kilovolts ), which will minimize the amount of power lost in transmission

    該超高壓直流輸電（ uhvdc ）線包括兩個變電站以及一個採用了突破性超高壓（ 800千伏）電力傳輸技術的電力傳輸系統，這將減少傳輸過程中的電力損失。
  3. How to combine advanced and high - efficient picture compress technology with the strong data processing ability of dsp to develop the practical wireless video transmission system, which the market can accept, is one of the current application hot points

    如何把dsp的強大的數據處理能力和先進高效的圖像壓縮技術結合起來，開發出市場所能接受的實用的無線視頻傳輸系統是當前的一個應用熱點。
  4. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  5. There was much evidence showing that substantia gelatinosa ( sg ) of the spinal dorsal horn plays an important role in nociceptive information transmission from the periphery to central nervous system. thus, the present study firstly investigated the effect of nociceptin on membrane current of spinal dorsal hom substantia gelatinosa ( sg ) neurons by use of the whole - cell patch - clamp technique

    故灘究首先應用脊髓薄片膜片鉗全細胞記錄技術觀察了在電壓鉗制下孤啡肽受體的內源性配體nociceptin對脊髓背角sg神經元膜電流的影響作用以及其對脊髓背角興奮性和抑制性突觸傳遞的作用，其次觀察了nand
  6. For high stability of the system, with the realization of hardware of the system, the second part of this paper starts from the transmission line theory, and studies the signal integrity problem of high - speed circuit system in light current. the causes of these signal integrity problems, such as signal delay, reflection, crosstalk, ground bounce noises and etc. are analyzed in theory. combined with actual design, key points of design and standard design flow of general high - speed, high - precision printed circuit board are summarized, which has been applied in actual system, and good effect has been achieved

    為使系統具有較高的穩定性，本文第二部分結合該處理器的硬體實現，從傳輸線理論出發，研究了弱電情況下高速電路印刷電路板中的信號完整性問題；從理論上分析了延遲、反射、串擾以及地彈噪聲等信號完整性問題產生的原因；結合實際設計，總結了一般高速、高精度印刷電路板的設計要點和標準設計流程，並在實際系統中獲得了應用，取得了很好的效果。
  7. Employing the interlaced scanning, current tv system can compress the frequency band of tv signal effectively and facilitate transmission. but this method reduces the scanning lines of pictures and the frequency of the field. it leads the pictures displayed on tv to have such disadvantages as large area flicker, edge flicker, interlace flicker, raster visibility and creeping line etc. to satisfy people " s vision feeling better, the big - screen, multi - function and high quality tv - set have been made great progress

    現行的廣播電視系統由於採用隔行掃描方式，從而有效地壓縮了電視信號的頻帶，有利於傳輸；但由於這種方式使得圖像的掃描行數少，場頻低，導致了重顯的電視圖像有大面積閃爍、邊緣閃爍、行間閃爍、行結構可見及行爬行等。
  8. In order to open up a patch for the china ' s monetary policy transmission in open economy system, we should reform the current pegged exchange rate system, make interest rate marketlization and propel the development of capital market

    它的實施，將增強我國貨幣政策經由資本市場傳導的效率。疏通我國開放經濟條件下貨幣政策傳導的政策建議有：改革現行匯率制度；實施利率市場化；完善發展資本市場等。
  9. The filters in high - voltage direct current power transmission system

    高壓直流輸電系統中的濾波裝置
  10. The main job of this research is : ( 1 ) analyze the operation situation of power system during faults ; pay attention to the traveling wave on the three - phase transmission line ; study the equation of voltage on three - phase transmission line with impedance capacitance coupling between phases ; contact the voltage on any point with the fault voltage, study the singularity of the voltage signal in fault point, and make it to be the base of the new fault detection method ; ( 2 ) apply the singularity detection theory based on wavelet analysis to the power system faults detection, give a complementary criterion to current fault detection criterion, study how to select the basic wavelet, how to filter noise, how to detect the singular point or fault point, and finally give a total solution. the simulations prove it to be a quick, correct and effective fault detection method

    本文的主要工作有： （ 1 ）分析電力系統在發生故障時的運行狀態，尤其對三相傳輸線上的故障行波進行了分析和研究，推導了考慮相間耦合的三相傳輸線電壓方程，並將傳輸線上任一點的電壓與故障點電壓建立起聯系，得出了傳輸線上電壓信號在故障點處的奇異性，並以此作為構造新的故障檢測演算法的理論基礎； （ 2 ）將基於小波變換的信號奇異性檢測理論運用於電力系統故障檢測中，針對目前相關研究的不足，提出了電力系統故障檢測判據的補充判據，通過對基本小波的選擇、除噪措施、信號奇異點也即故障點的檢測方法所作的分析，給出了一個可行的解決方案；模擬研究表明：這是一個快速、準確、有效的故障檢測演算法。
  11. Companies with advanced production lines and improve the management system, high - level professional and technical personnel on - site operation and guidance, the production of pp - r products through national quality inspection qualified, entered the market, the recognition by the great majority of consumers, the company has been formed, production 6, 000 tons pipe and tube production scale, the current company employees more than 200 people, including management staff of more than 20, overall responsibility for the company ' s production, quality, sales and service, companies are products system, products 36 series, 315 varieties, transmission system pipe tube, and so on, there are various control systems, such as valves

    公司具有先進的生產線及完善的管理體系，高水平專業技術人員進行現場操作及指導，所生產的pp - r產品經過國家質量檢測合格，進入市場以來，受到廣大消費者的認可，公司已形成年產6000噸管材、管件的生產規模，目前公司員工200多人，其中管理人員20多名，全面負責公司的生產、質檢、銷售、服務工作，公司現產品體系完善，產品36個系列， 315個品種，輸送系統有管材管件等，控制系統有各種閥門等。
  12. Through establishing three mathematics models including the movement equation of the mechanical and electrical transmission system, the control of the load and the sliding in stable status, direct - current - brake of ac motor, this paper ascertained the range of the frequency value of drive motor and the efficiency of transmission system, calculated the efficiency of load motor in stable status and the moment of load motor in braking. this paper completed the design of the mechanical part of inertia brake test platform and provides a tool for the measurement of the inertia brake parameters

    本文還通過建立慣性制動器試驗臺的包括機電傳動系統的運動方程、穩態運行時負載與轉差率控制、交流電動機直流制動在內的三個數學模型，確定驅動電機的頻率取值范圍和傳動系統的傳動效率，驗算慣性制動器穩態運行時負載電機軸功率和慣性制動器制動時負載電機軸力矩，完成慣性制動器試驗臺設計中的機械部分，為慣性制動器各參數的測量提供工具。
  13. The reliability of hv / ehv transmission line protection is important to the security of the power system. this thesis is devoted in the study of the transient current protection for hv / ehv transmission line

    探索新的保護原理和方法，以提高輸電線路保護的性能，是繼電保護研究領域中的一個重要課題。
  14. In this paper, through analyzing and discussing current development of typical hydrostatic drive system of crawlers at home and abroad, it studies property - matching of hydrostatic transmission systems, provides an electronic proportional controlling variable displacement pump - motor hydraulic drive circuit and control plan fit for crawlers " operation, together with typical travel drive system component

    本文對國內外推土機行駛靜壓驅動系統研究現狀進行了分析和綜合，對靜壓行駛驅動系統的性能匹配進行了分析，結合典型行駛驅動系統的組成、工作原理提出了適合推土機工作的電比例控制變量泵-變量馬達液壓驅動迴路及其控制方案。
  15. The results that increasing of bias current and shunted resistance and lowing critical current and connected inductance can decrease the transmission time are shown ; ( 4 ) a new type of circuit, ladder shape multiplayer jtl. structure is provided by author, thus output signal of rsfq circuits can be amplified before transfer to room temperature electronics system. it has highly gain of amplify relatively and the double peak structure are avoided through decreasing parasitic capacitance

    （ 4 ）針對目前超導與室溫介面電路的電壓放大器存在的「雙峰」和放大增益效率較低的不足，提出了一種全新的階梯式多層jtl電壓放大電路結構，較好的解決了以上的問題，通過初步的模擬分析證實，該電路的構思極負有創新性。
  16. 2. wp - le3pq - t2824nt 220v 220v, 5a 5a tri - phase ac active, reactive power meter ; double screen digital display ; outline dimension 80160mm ; rs - 485 standard serial communication ; ma transmission output ; tri - phase four - wire system ; switch power supply ; input voltage 0220v ; input current 05a ; active display 3300w, reactive display 3300var

    三相交流有功無功功率表雙屏數字顯示外形尺寸80160 rs - 485標準串列通訊4 20 ma變送輸出三相四線制;開關電源供電電壓輸入0 220v輸入電流0 5a ;有功顯示3300w ，無功顯示3300var ，
  17. High voltage direct current ( hvdc ) power transmission system is a typical nonlinear control system

    高壓直流輸電系統（ hvdc ）是一個典型的非線性控制系統。
  18. On the basis of analyzing the respective development and current situation at home and abroad of cad / cae / capp technology, this paper brings forward the research direction - integration and intelfectualization combining the expert system. by the analysis of the characteristic and restriction of the gear components, this paper upbuilds the characteristic model based on the restriction and actualizes data transmission and information sharing among cad. cae and capp. this paper analyzes the general principle of parameter determination and strength check about gear and researches the algorithmic of gear strength check based on the characteristic. this paper introduces expert knowledge into respective procedure of cad. cae and capp and actualizes the intellectualization in design process. strength analysis and process planning. on the basts of aforementioned research. this paper develops the cad / cae / capp integration software of gear components by means of the active - automation technology provided by autocad and vb and conducts the integration with general mechanical and shaft components integrated designing system. the application of the software indicates this system has perfect function and project applied cost

    本文在分析國內外cad cae capp技術各自的發展歷史與現狀的基礎上，結合專家系統，提出了智能集成的研究方向。以齒輪類零件作為研究對象，在分析了其特徵及約束的基礎上，利用數據庫技術和圖形單元建模技術，建立了基於約束的特徵模型，實現了cad cae capp之間的數據傳輸和信息共享；分析了齒輪參數確定、強度校核的一般原則，進行基於特徵的齒輪強度校核的演算法研究；將專家知識融入在cad 、 cae 、 capp各個過程中實現了設計過程、強度分析和工藝分析的智能化。在上述研究的基礎上，利用autocad2000提供的activexautomation技術，以vb為開發工具，開發出了齒輪的cad cae capp集成軟體，並與其它機械通用件設計系統進行了集成。
  19. Distribution power systems in our country are almost ineffective grounded systems, it is called small current neutral system ( scns ). but the unique characteristics of ground - faults of the scns make it difficult to locate exactly the fault point of transmission lines

    我國大多數配電網均採用中性點非有效接地系統，即小電流接地系統，但由於該系統自身的特點，其單相接地故障的檢測定位成為長期困擾電力工作者的一個棘手問題。
  20. The control system is the core of high voltage direct current ( hvdc ) transmission system

    控制系統是高壓直流輸電系統的核心。
分享友人
分享到 Line

分享到臉書