零電流開關 的英文怎麼說

中文拼音 [língdiànliúkāiguān]
零電流開關 英文
zero current switch
  • 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 （...
  • 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...
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. The design of rcd snubber and voltage feedback loop is introduced. finally, a 1kw prototype is researched and developed successfully to verify the operation principle of the combined converter

    該變換器中的開關管實現了在零電壓下關斷，而且其中兩個開關管在零電流零電壓下開通。
  2. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  3. Voltage segment network constituted by electron switch of bta and controlled by single chip microcomputer constitutes a new fast electronic regulator. for bta cross zero touch off, sine wave which is exported is integrity. a new way to generate stable ac current is found with feed back control system by single chip microcomputer. so a new high power ac current regulator is developed

    採用單片機控制雙向可控硅作為電子開關所組成的電壓分節網路，組成新穎快速的電子調壓器；由於雙向可控硅過零觸發，所以其輸出是不失真的完整正弦波；再用單片機組成反饋控制系統，從而找到了交流穩流的新方法，研製出一個大功率交流穩流電源
  4. Abstract : voltage segment network constituted by electron switch of bta and controlled by single chip microcomputer constitutes a new fast electronic regulator. for bta cross zero touch off, sine wave which is exported is integrity. a new way to generate stable ac current is found with feed back control system by single chip microcomputer. so a new high power ac current regulator is developed

    文摘:採用單片機控制雙向可控硅作為電子開關所組成的電壓分節網路，組成新穎快速的電子調壓器；由於雙向可控硅過零觸發，所以其輸出是不失真的完整正弦波；再用單片機組成反饋控制系統，從而找到了交流穩流的新方法，研製出一個大功率交流穩流電源
  5. ( 4 ) the experiment of asymmetrical half bridge converter design and the result of it base of the above analysis, the dc / dc converter is designed, it is proved that asymmetrical half bridge can realize zero voltage switching when it satisfies the condition of load current and deadtime by the experiment

    （ 4 ）不對稱半橋的實驗電路設計及實驗結果基於前面的分析，設計了一個不對稱半橋dc dc變換器的實驗電路，進行了實驗研究，實驗結果證實了在滿足死區和負載電流兩個條件時，不對稱半橋可以實現零電壓開關。
  6. A novel high - power pollution - free smps is presented in this paper, which accomplishes simultaneously the goal of soft - switching pwm, the input / output isolation, the output voltage regulation and three - phase pfc with a single - stage power processor and simple pseudo - phase - shift control circuit. therefore, compared with the normal two - stage system, the single - stage power supply has simpler structure, lower cost, higher efficiency and easier to control. the proposed smps can be used in the three - phase power system, and can output high power over kw - order and input / output ( i / o ) isolation dc power supply

    本文提出的新型無污染大功率開關電源正是採用三相三線制輸入電源，利用單級偽相移零電壓零電流開關脈寬調制（ pps - zvzcs - pwm ）全橋變換器完，成功率因數校正（ pfc ）和輸出電壓快速調節、隔離的雙重功能，並且該變換器開關管在零電壓或零電流下通斷，顯著的減小了emi 。
  7. ( 2 ) each state of the total switching period has been studied in detail, in which the voltage of block capacitor and current of leakage inductance of main transformer and keeping time of each state have been discussed, then the condition of zero voltage switching is attained, which gives theory guidance for setting reasonable dead time, finally, the possibility of zero voltage switching is proved by simulation of saber software

    （ 2 ）對不對稱半橋在一個完整的開關周期內各個狀態分析，描述了隔直電容電壓和變壓器漏感電流的變化規律，各個狀態的持，然後得出實現zvs的條件，從而為設置合理的死區時間提供了理論指導，最後用saber軟體進行了模擬，驗證了零電壓開關實現的可能性。
  8. According to the mechanism characteristics of the ac motor, with zero - voltage switching technology, the pdm converter mathematical models both the pwm and rectangular wave control mode are given in this paper. and the voltage and current harmonic analysis and the simulation waveforms of the output voltage, current and power are also described respectively

    根據交流電機在恆轉矩區和恆功率區的特性，結合零電壓開關技術，分別給出相應的脈寬調制控制（ pwm ）方式和方波控制方式下的高頻交流脈沖密度調制變頻器的數學模型，電壓和電流的諧波分析以及輸出電壓、電流和功率的模擬波形。
  9. A novel resonant pole zvt three - phase pwm inverter circuit for three - phase ac motor driving is presented. the proposed circuit has the feature of being more flexible with three inverter arms in zvt process. using only one resonant inductance, the inverter can not only reduce the power loss of inductance but also avoid possibility of unbalance in motor ' s three stator windings

    提出了一種針對三相交流電機驅動的新型諧振極零電壓過渡三相pwm逆變器電路，該電路中三個逆變橋臂的零電壓過渡更具有靈活性，僅使用一個諧振電感，既減少了電感損耗又防止了電機三相定子繞組可能存在的不平衡問題，並且諧振電感中殘余能量能夠回饋給電源；新型逆變器的輔助開關均工作在零電流開關條件下，並且控制邏輯簡單。
  10. The principle and application of zero current switching boost pfc circuit are given. by introducing the development of ac / dc module with pfc the key techniques of the module are stressed on the engineering design. some problems are resolved such as the module is so small that spread the hot difficulty

    從理論上分析和研究了零電流開關升壓式pfc電路的原理和應用，並結合250w帶pfc電路ac dc模塊的研製，從工程設計角度重點闡述了該模塊的關鍵技術，解決了模塊體積小、散熱困難及工藝等方面的難題。
  11. Compared with phase - shift control, pwm plus phase - shift control can reduce the current stresses and rms currents of the converter. the loss of the converter can also decrease. lt is proved the converter can achieve zvs in larger load variation

    與常規相移控制方式相比， pwm加相移控制方式能減小變換器的電流應力，減小通態損耗，同時也能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。
  12. Firstly, the basic theory of full - bridge phase - shift zvs pwm converters are expatiated and another three kinds of circuits of full - bridge phase - shift zvs pwm converters are discussed. there are four kinds of problems which are emphasized : how to expand the zvs range ; how to reduce the circulation in the primary side of the transformer in order to minimize the on state losses ; how to decrease the loss of effective duty circle and how to eliminate the parasitic oscillation of the output rectifiers

    本文首先分析了基本的全橋移相zvsdc dc變換器的工作原理，為解決滯后橋臂不易實現零電壓開關（ zvs ）的情況，討論了另外三種全橋移相zvsdc dc變換器的電路拓撲，重點分析並解決了四個方面的問題：如何擴大zvs的負載范圍；減小變壓器原邊環流，降低變換器系統通態損耗；減少變壓器次邊有效占空比丟失；消除輸出整流二極體的寄生振蕩。
  13. " soft switching " is zero voltage switching or zero current switching, which the voltage ( or current ) of the switch varies by law of sine or quasi sine, the switch is on when its voltage reaches zero ( or switch is off when its current reaches zero ) by resonance. it makes switch loss is zero, so it can increase the operating frequency and raise power density, minimize the size of transformer and inductor

    「軟開關」是指零電壓開關或零電流開關，它是利用諧振原理，使開關變換器的開關管電壓（或電流）按正弦（或準正弦）規律變化，當電壓過零時，使器件開通（或電流自然過零時，使器件關斷） ，實現開關損耗為零，從而提高開關頻率，減小變壓器、電感的體積。
  14. The scheme of realizing soft - switching can be found, at the same tune, the concepts of the leading switches and the lagging switches are presented. two kinds of soft - switching methods, zero - voltage - switching ( zvs ) and zero - voltage and zero - current - switching ( zvzcs ), can be classified on the base of realizing soft - switching of the lagging switches

    在對其控制策略的研究中，找出了可以實現軟開關的方案；同時提出了超前管和滯后管的概念，根據滯后管實現軟開關的方式，將變換器的軟開關方式分為兩類：零電壓開關方式和零電壓零電流開關方式。
  15. Among them, phase shifted ( ps ) full bridge ( fb ) zero - voltage - switched ( zvs ) pulse - width - modulated ( pwm ) dc / dc converter has strong competitive power in big power capacity fields. but it has some limitations such as smaller load range with zvs and larger circulation energy. the ps - fb - zvs - pwm dc / dc converter with a saturable inductor utilizes saturable inductor s critical saturable current characteristic and storage energy, to enlarge load range with zvs and improve output efficiency under light load

    其中，移相控制零電壓開關脈寬調制dc / dc全橋變換器在大容量領域很有競爭力，但它具有實現零電壓開關負載范圍小，循環能量大等限制，帶飽和電感的移相控制零電壓開關全橋變換器利用飽和電感的臨界飽和電流特性及儲能，來擴大零電壓開關（ zvs ）的負載范圍，提高輕載時的輸出效率，具有非常重要的研究價值。
  16. The zero - voltage - switching ( zvs ) pwm hybrid full - bridge three - level ( h - fb tl ) converter can operate in both three - level mode and two - level mode, the output rectified voltage is close to the output voltage over the entire input voltage range, thus the output filter can be reduced significantly, leading to high power density and fast dynamic response. so the zvs pwm h - fb tl converter is very attractive for the applications such as fuel cells, photovoltaic cells, and telecom power supplies, where the voltage varies in a wide range

    零電壓開關復合式全橋三電平（ zero - voltage - switchingpwmhybridfull - bridgethree - level ， zvspwmh - fbtl ）變換器可以工作在三電平模式和兩電平模式，在很寬的輸入電壓范圍內，輸出整流電壓都接近輸出電壓，從而可以減小輸出濾波器，因此可以提高變換器的功率密度和改善動態性能。
  17. 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。
  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. However, these converters become more complicate. phase - shift bi - directional dc - dc converter is attractive since it operates with fixed frequency, has small voltage and current stress and can realize zvs without auxiliary switches

    相移控制雙向dc - dc功率變換器因具有功率器件電壓，電流應力小，定頻工作和無須增加輔助器件即可實現功率器件的零電壓開關條件等優點而受到關注。
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