transformer efficiency 中文意思是什麼

transformer efficiency 解釋
變壓器效率
  • transformer : n. 使變化的人[東西]；【電學】變壓器；變換器；互感器。 polarity of transformer 變壓器繞線方向。
  • efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
  1. With the development of power electronics technology and devices in recent years, instead of using the industrial frequency transformer to boost voltage, dc / dc high frequency converter achieves the function. the system has higher power density and conversion efficiency, and the size, weight, ac noise of which has been greatly reduced

    近年來，隨著電力電子技術與器件的迅速發展，使用dc dc高頻變換技術代替工頻升壓，系統具有較高的功率密度與轉換效率，裝置體積、重量與交流噪聲大大減小。
  2. Aiming at the problem that existence in the monitoring of simulate disk in local power grid, to enhance the level and efficiency of the electricity dispatch, to improve operation procedures, to change the troublesome work about 6kv line simulation disk, 35kv transformer substation and 6kv substation host cording diagram revision and maintenance from man - power, manual promotion to direct - viewing, real - time and work flow high automation level

    針對地方電網「模擬盤」監視中存在的問題，為提高電力調度工作水平和效率，完善操作規程，把煩瑣的6kv線路模擬盤、 35kv變電所和6kv配電所主結線圖的修改和維護工作從人工、手動提升到直觀、實時和工作流程高度自動化水平，實現電力調度日報、月報及日常管理實現規范化、自動化。
  3. Hollow output transformer, efficiency and reliability of the entire machine

    無空心輸出變壓器，整機效率高，可靠，比電子管式高頻高25 %
  4. How to forecast transformer ' s fault ahead and find the fault reason quickly after the fault is a good way to increase work efficiency and lighten the economy losing

    如何提前對變壓器故障進行預測和在故障發生后迅速判斷故障原因是提高工作效率、減少經濟損失的一個重要途徑。
  5. By compared with the simulation results and the experiment results, we come to the conclusions that : ( 1 ) circuit with assistant network can widen soft - switching extent in lagging arm, reduces duty - cycle loss on the secondary, diminishes switching dissipation of inverter spot - welding power source. ( 2 ) the range of resonant capacitor, the important factor to soft - switching process, not only affects zero - voltage turn - off of power switches, but also affects the range of zero - voltage turn - on of power switches. so resonant capacitors must be considered according to many aspects ; ( 3 ) it easily fulfils soft - switching condition in lagging arm as leakage inductance of power transformer increases, but bigger leakage inductance of power transformer increases opening dissipation of transformer and decreases efficiency of soft - switching inverter power source

    通過模擬結果與軟開關點焊逆變器試驗結果的對比分析，得到了如下主要結論：採用輔助網路可以完全拓寬全橋軟開關逆變器的滯后橋臂軟開關范圍，減小了次級占空比丟失，降低了逆變電阻點焊電源的開關損耗；諧振電容是影響軟開關工作狀態的重要因素，其大小不僅影響開關管的零電壓關斷，同時也影響開關管的零電壓開通范圍，因此，諧振電容應該綜合考慮；功率變壓器漏感越大，越容易滿足滯后橋臂的軟開關條件，但是大的漏感也使變壓器的通態損耗增加，降低了軟開關逆變器的效率。
  6. The autor thought that for the main transformer, the load rate should be increased above 85 % ; and for the distributor transformers set with the electrial room, according to efficiency first principle, the load rate should be control at 40 % ~ 60 %

    作者認為：主變壓器設計選擇時，應考慮提高其負荷率達85 %以上；電氣室配電變壓器選擇時，應按效率優先原則為主，其負荷率控制在40 % ~ 60 %之間。
  7. The clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. the operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. the effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined

    本文將諧振電感和變壓器交換位置，使變壓器與滯后橋臂相連，這樣箝位二極體在一個開關周期中只導通一次，同時零狀態時諧振電感電流較小，有利於提高變換效率和減小占空比丟失，本文分析改進后變換器的工作原理，並與改進前的變換器進行對比，討論隔直電容在不同位置對變換器工作的影響，確定一種最佳工程方案。
  8. A circuit or device that converts a dc input voitage to a regulated output woltage, the output voltage may be lower, higher or the same as the input voltage, switching - regulator dc - dc circuit most often require an inductor or transformer to achieve t - he regualted output voltage, wwitching fegulator circuits can achieve a higher level of power efficiency whec compared to non - wwitching techniques

    指一電路或儀器可將一直流輸入電壓換成一高速過的輸出電壓，此輸出電壓可為較低，較高或輸入電壓相同，互動式直流對直流調整電路通常需要一電感或變壓器以達到所要的輸出電壓，交換式調整電路和非交換式技術比有較高的功率效率。
  9. Then the power circuit is designed. at last, with analysis of experiment data the relation of power output and transmission efficiency of transformer is researched in detail

    然後對扭矩儀的電源部分進行了設計，並通過實驗數據對功放電路的輸出功率和變壓器的傳輸效率的關系作了深入的研究。
  10. For the air - core pulse transformer has no magnetic material to form the magnetic loop, its coupling coefficient and energy efficiency is lower. in order to improve its property, partial magnetic material is inserted in air - core spiral strip transformer. this method not only results in better property of transformer, but also reduces the bulk of transformer

    本課題設計的變壓器是在帶繞式空芯脈沖變壓器中加部分磁芯材料以提高變壓器耦合系數，進而提高其能量傳輸效率，此方法彌補了空芯變壓器耦合系數低的缺點，並且可以使變壓器小型化，因此對部分磁芯脈沖變壓器理論和試驗的進一步研究具有重要的理論和實踐意義。
  11. Its being used can form high efficiency insulated switching power supply without using utility power transformer. the switching power ic is selected firstly in the design of high power switching power supply, precision switching power supply, application specific switching power supply and so on in the world, which has been making switching power supply short, small, light and thin the control techniques of dc - dc switching converters are completely described and analyzed

    單片開關電源管理集成電路具有高集成度、高性價比、簡單外圍電路、優越性能指標等優點，能構成高效率無工頻變壓器的隔離式開關電源，目前已成為國際上開發中、小功率開關電源、精密開關電源、專用開關電源以及開關電源模塊的優選集成電路，使得開關電源正朝著短、小、輕、薄的方向發展。
  12. We denote many typical arithmetics with apla, such as, non - recursive tree traversals, dijkstra, topological sorting etc. the test result indicates the program transformer can improve the program ' s reliability and development efficiency. it can replace softeware blue collar to complete mechanical and creative work

    5 、實現了自動轉換系統的泛型問題中的類型參數化問題，解決了apla提供泛型機制，而java語言不支持泛型機制的矛盾。
  13. The prototype test results indicate : voltage mode and current mode ac - ac mode ac / ac converters with high frequency link have the advantages such as high frequency electrical isolation. simple topology, two - stage power conversions, high power density, bidirectional power flow, good line current waveform, no audio noise, high converting efficiency, and high input power factor etc. this kind of converter lay the key technical foundation on new type regulated sinusoidal ac power supply, electronic transformer, ac regulator, and wave converter etc

    試驗表明，這類變換器具有高頻電氣隔離、電路拓撲簡潔、兩級功率變換（ lfac hfac lfac ） 、功率密度高、雙向功率流、無音頻噪音、變換效率高、網側功率因數高等優點。為新一代正弦交流穩壓器、電子變壓器、交流調壓器、同頻波形變換器的實現奠定了關鍵技術基礎。
  14. Disadvantages : like the resistor load example, much higher voltage is required. an extra tube is needed. lower efficiency than the parafeed or transformer example

    缺點：和電阻負載一樣，高壓要求很高。需要增加膽管。比旁饋和變壓器負載效率更低。
  15. A topology of asymmetrical half bridge soft switching is researched in this thesis, which has inherent zero voltage switching ( zvs ) capability and thus potentially higher efficiency by its resonating of the leakage of power transformer with the parasitic capacitances of the power mosft switches, whereas it does n ' t raise the expense of the converter these studies in the thesis have been done as follows : ( 1 ) the topology of asymmetrical half bridge is introduced, and its principle and the relation of duty cycle and input voltage and output voltage discussed, the method of eliminating the deflection magnetism is also brought forward

    雖然，軟開關技術能夠實現功率變換器的小型化、模塊化等，但是，電路變得更加復雜，使得中小功率的變換器的成本增加，往往不利於商業競爭。本文研究了一種零電壓的不對稱半橋拓撲結構，它可以在不增加電路成本的基礎上，利用電路自身的特點，實現軟開關。本文所做的主要工作如下： （ 1 ）對不對稱半橋主電路工作原理進行分析，給出了占空比與輸出電壓、輸入電壓的關系以及消除變壓器偏磁的方法。
  16. Regarding the accumulator to start motive force urgency treating the maintenance with maintaining, our factory is for suiting the needs of society to swift and violent development and extensive use along with automobile, motorcycle as well as agriculture with the car, by way of the constantly improvement to the old style battery - charging unit, producing out " full active protection battery - charging unit of computer ", it has collected to fill and the all direction protection such as flows and joining versely etc in an organic whole, being compared with the ordinary battery - charging unit, it adopts the ring mould transformer of high quality high efficiency, possesses that to bear the weight the current strong, grows in service life etc the characteristic, can make the accumulator 2 - 3 lengthening life span times

    隨著汽車、摩托車以及農用車的迅猛發展和廣泛應用，作為啟動動力的電瓶急待維護和保養，我廠為適應社會的需要，通過對老式充電機的不斷改進，生產出「電腦全自動保護充電機」 ，它集過充、過流、反接等全方位保護於一體，與普通充電機相比，它採用優質高效的環型變壓器，具有承載電流強，使用壽命長等特點，可使電瓶延長壽命2 - 3倍。
  17. Its principal means is to regulate transformer rate and to parallel with capacitors. thie paper implements reactive power optimization calculation based on above mathematical model by genetic algorithm. to overcome the poorly computational efficiency of genetic algorothm, we also makes an improvement of it to enhances its convergence speed and search efficiency

    無功優化主要採用調整變壓器分接頭和並聯電容器兩種方法，用遺傳演算法實現了基於以上數學模型的配電網無功優化計算，針對遺傳演算法計算效率低的現象對常規遺傳演算法加以改進，進一步提高了演算法的計算效率和全局尋優能力。
  18. In this paper, i analyze the practical condition of the cad applied to the transformer, make some researches on the primary technology of the expert system based on the forward chaining, on the modeling technology based on the assemble feature, on the design ideal based on the parametric drawing, on the principal of the database. i develop the practical cad software system about the transformer structural project based on the previous principal and ideal, applying to the vc + + system and the regeneration development tool of the autocad system. the system establishes the foundation for the integration of the transformer design information, reduce the time of the transformer design, increase the design efficiency and the economic effectivity of the enterprise, and have a great applicational value

    本論文分析了cad在變電設備行業中運用的實際情況，先後研究了基於正向推理的專家系統的基本技術，研究了裝配特徵的造型技術，研究了參數化繪圖的設計思想，研究了數據庫管理的基本思想；在vc + +環境下和autocad二次開發工具objectarx的基礎上，開發了基於上述技術和思想的變壓器結構方案cad應用軟體系統，為變壓器製造業的信息化和系統設計的集成奠定了基礎，在一定程度上能減少變壓器總體設計時間，提高企業的設計效率，能為企業帶來較大的經濟效益，具有較大的應用價值。
  19. The transformers are in accordance with national standards gb1094. 1 - 5 power transformer and gb t 6451 technical specifications and requirements for three phase oil - immersed power transformer. special care is taken in the choice of material, manufacture technology and construction, so that the performance can match with of the international advanced level, with low loss and high efficiency, which means substantial saving in electrical energy and low operation cost, so that it has been recommended by relevant national authority. the hermetically - sealed transformers are different from ordinary oil - immersed transformers due to without conservator

    本系列產品符合國家標準gb1094 . 1 - 5電力變壓器和gb t6451三相油浸式電力變壓器技術參數和要求，本系列產品在材料，工藝，結構上採取了一系列重大改進，使產品電氣性能達到國際九十年代同類產品的先進水平，具有效率高，損耗低等特點，可節省大量的電能和運行費用，社會效益顯著，是國家推薦的新產品。
  20. Secondly, the model of the high frequency switching mode power supply transformer with the lest loss and highest efficiency was set up. with the genetic algorithm and microsoft visual foxpro 6. 0, the optimization designing software of high frequency switching mode power supply transformer ? hfsmpst expert v1. 0 was developed. then the sample of the high frequency switching mode power supply transformer was produced

    接著本文建立了損耗最小、效率最高的高頻開關電源變壓器的設計模型，利用遺傳演算法和microsoftvisualfoxpro6 . 0開發了高頻開關電源變壓器優化設計軟體hfsmpstexpertv1 . 0 ，研製了高頻開關電源變壓器樣品並介紹了其工藝方法和流程，最後本文通過實驗測試驗證了設計的正確性，實現了預定的研究目標。
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