直流變壓器 的英文怎麼說

中文拼音 [zhíliúbiànyāqì]
直流變壓器 英文
dc transformer
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 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...
  • 壓 : 壓構詞成分。
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  1. Traveling cranes, drying furnaces, transformer wiring facilities, transformer automatic inspection machines, pressure meters, insulation resistance meters, ac dc stabilized power sources, memory high coder brightness meters, light meters, film thickness meters, noise meters, hand thermometers

    起重機，乾燥爐，變壓器卷線設備，變壓器自動檢查機，耐壓計，絕緣電阻計，交流直流穩定性電源，內存快速編碼器亮度計，光度計，膜厚計，噪音計，手指尖溫度計
  2. It is difficult to produce a very high voltage directly, by a combination of transformer and rectifier.

    用變壓器和整流器相配合直接得到很高的電壓是困難的。
  3. The fourth advantage of this circuit is since the transformer has no high voltage dc on it, the transformer can be replaced with an " autoformer " ( a single tapped winding ) allowing the output autoformer to be further optimized

    第四：由於輸出變壓器不需要通直流，變壓器可以使用「自耦」式單一抽頭繞組，從而容許進一步優化輸出自耦。
  4. Using the modified method, 6 kinds of tl topologies of single - switch converter are obtained. the deep research reveals that these tl topologies can have less value of the inductor by using interleaving modulation strategy compared with conventional modulation strategy on the condition that the current ripple of the inductor are the same. some drawbacks such as high voltage stress, difficulty of realizing soft - switching, and magnetic aberration were presented in the conventional push - pull converter

    對基本方法進行改進，提出了適合6種單管直流變換器的三電平拓撲變換方法，成功地得到了其三電平拓撲，開關管的電壓應力降為原來的一半；經過對這些三電平拓撲控制策略的深入研究，詳細論述了交錯開關方式可以最大幅度地減小電感的電流脈動，從而可以在電流脈動要求相同的情況下減小電感的設計值。
  5. Gca silicon commutate battery charger are the ideal portable tools for charging, they are composed with the conditions of voltage dropping through rectifier transformer, then the bridge rectifying of rectification circuit. the output full - wave pulstin current charge the storage battery. the voltage changing composed with multiband switch. the outputcurrent can be adjusted. this kind of product used any moment onctarging anyplace

    Gca系列整流充電機是由整流變壓器的降壓，再經過流電路的橋式整流，輸出全波脈動直流對電瓶進行充電，電壓調速同多頭波段開關組，輸出流可以調節，該產品用任何需要補充充電的場所。
  6. The three - level ( tl ) topology derivation is a method to reduce the voltage stress of each switch in the converter by increasing the number of switches

    直流變換器的三電平拓撲變換是一種通過增加開關管的數量來降低變換器中每隻開關管電壓應力的方法。
  7. Its main advantages are soft - switching while operating at constant switching frequency and a simple control. in order to be applied under more high voltage, the fb converter can also be converted to tl topology. using the basic tl topology derivation method, fb tl converter can be deduced

    應用三電平拓撲變換的基本方法，直接得到了全橋三電平直流變換器的拓撲結構，使其開關管的電壓應力降到輸入電壓的一半，進一步拓寬了全橋直流變換器的應用范圍。
  8. With the best modulation strategy which was found on condition that it must have largest energy transfer ratio, smallest current ripple of the inductor, and realizing zvs of each switches, the converter overcomes the drawbacks presented by the conventional zvs fb converter, such as high voltage stress of each switches, large current ripple of the inductor, and severe parasitic ringing on the rectifier diodes, so it can get higher efficiency, faster respond speed, and wider application area. the operation principle of the proposed converter is analyzed and verified by a 3kw, 50khz experimental prototype. experiments and research results show that the scheme of the tl topology derivation is reasonable, adjusted modulation strategy makes some other severe problems in conventional topologies easy to solve or makes the converter more competitive

    研究結果表明，本文提出的三電平拓撲變換方案合理，針對各種三電平拓撲尋找到的控制策略可以解決變換器存在的某些問題或使變換器表現出更突出的優勢：例如針對單管直流變換器三電平拓撲的控制策略可以減小電感的設計值，針對推挽直流變換器三電平拓撲的控制策略可以實現開關管的軟開關、解決變壓器偏磁問題等，針對全橋直流變換器三電平拓撲的控制策略可以減小電感的設計值、實現開關管的軟開關等。
  9. The push - pull tl converter can be deduced by using the basic tl topology derivation and by special derivation only used in this topology, in which, the voltage stress of each switches is input voltage

    應用三電平拓撲的基本變換方法，經過對該拓撲結構的特殊變換，得到了推挽三電平直流變換器的拓撲，其開關管的電壓應力為輸入電壓，與傳統推挽直流變換器相比，電壓應力降低了一半。
  10. Insulation co - ordination - part 5 : procedures for high - voltage direct current converter stations

    絕緣配合.第5部分:高壓直流電流變壓器站的工作程序
  11. At the end, a half - bridge dc / dc transformer with zero voltage switching ( zvs ) is presented

    最後本文研究了一種半橋軟開關直流變壓器電路。
  12. The converter is characterized by simple structure, zvs, low switch voltage stress, high efficiency and high reliability. the operational principle, the output characteristics and the condition for zvs of the switches are analyzed. the converter has also been verified by simulation and experimental

    文中分析了該變換器的工作原理，給出了變換器的輸出特性和實現zvs的條件，對其進行了模擬和實驗驗證，而且對採用半橋直流變壓器的航空靜止變流器進行了模擬研究。
  13. The general situation of converter transformer and smoothing reactor is presented. the development of light dc transmission technilogy is prospected

    摘要介紹了換流變壓器和平波電抗器的概況，展望了輕型直流輸電技術的發展。
  14. These harmonic current will inflow in the ac power system through the converter transformers and effect the normal operation of ac / dc system without any limitation

    這些諧波電流通過換流變壓器網側注入交流系統，如果不加以控制，會影響交、直流系統的正常運行。
  15. Finally, the operation principle of three - level shift phase pwm control with zero voltage is validated by the simulation analyze and the debugging experiment of 230v / 10a sample device

    最後，通過模擬分析以及對230v / 10a樣機的調試實驗，驗證了零電壓三電平移相控制pwm三電平直流變換器的工作原理。
  16. A current - doubler - rectifier ( cdr ) zvs pwm ( half - bridge ) three - level converter is proposed in this paper. zvs can be achieved for all the switches in a wide load range with the use of the energy stored in the output filter inductances. the output rectifier diodes commutate naturally without voltage oscillation and voltage spike

    針對傳統（半橋）三電平直流變換器的一些不足，本文提出一種倍流整流方式pwm零電壓開關三電平直流變換器，可以使開關管在全負載范圍內實現零電壓開關，副邊整流二極體無電壓尖峰，無占空比丟失。
  17. The requirements are the following : ( 1 ) input voltage : 220 vac ; ( 2 ) output voltage : 48 vdc ; ( 3 ) output current : 20 adc ; ( 4 ) switching frequency : 80khz ; ( 5 ) operated frequency of apfc : 100khz the simulated software pspice 7. 1 realizes simulation research of the main circuit, and the simulated result of key waveforms in the main circuit is introduced

    設計指標為：輸入電壓為交流220v ，頻率為50hz ，輸出電壓和電流為48v ， 20a ，功率因數校正電路的工作頻率為100khz ，直流變換器電路的工作頻率為80khz 。利用模擬軟體pspice7 . 1對主電路進行了模擬研究，並介紹了主電路的幾個關鍵波形的模擬結果。
  18. Zero - voltage - switching three - level dc / dc converter in the thesis is developed and manufactured, and the basic operation principle and its control strategies of three - level zero - soft - switch pwm dc converter are discussed. hardware design of main system and control system is accomplished by circuit design software protel99se. the difference of leading switches and lagging switches to realize the zero - voltage switching and the reason of duty - cycle loss is emphatically argued

    本課題通過三電平零電壓開關直流變換器（ zero - voltage - switchingthree - leveldc / dcconverter ）的研製，探討了三電平軟開關pwm直流變換器的基本工作原理及其控制策略，利用電路設計軟體protel99se完成了控制系統及主系統的硬體設計。
  19. The main circuit of the design in this article we used is fb zvs pwm dc / dc converter, full bridge zero voltage switching pulse width modulation dc / dc converter, which is a full bridge circuit composed of four power switches using resonance to implement zero voltage when turning - on or turning - off

    本文設計的通信電源充電模塊的主電路採用的是fbzvspwmdc dc變換器，即全橋零電壓開關脈沖寬度調制的直流變換器，它是由4個功率開關管組成的全橋電路，利用諧振使每個開關管在零電壓的條件下完成導通和關斷。
  20. Multilevel ( ml ) converters have been attracting more and more attention because they have the advantages such as low voltage stresses for power devices and reduced harmonic content of the voltage waveform. they are very suitable for high voltage and high power conversion applications

    多電平直流變換器由於其開關管及二極體的電壓應力低、輸出電壓諧波含量小等優點，特別適合於高電壓大功率的應用場合，近年來正受到越來越多的關注。
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