高壓變換開關 的英文怎麼說

中文拼音 [gāoyābiànhuànkāiguān]
高壓變換開關 英文
high-voltage change-over switch
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 壓 : 壓構詞成分。
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 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...
  • 高壓 : 1 （殘酷迫害; 極度壓制） high handed 2 [氣象學] （高氣壓） high pressure3 （高電壓） high tension...
  1. Based on the thorough investigation of the post - regulation and efficiency in multiple output switching - mode power supplies, an optimal combination topology for multiple output switching converter is presented in this thesis, which is consisted of forward converter with active clamp ( fac ), synchronous rectification ( sr ) techniques and magnetic amplifier technique ( magamp )

    本文通過研究分析近年來多路輸出開關電源輔助輸出電壓調節和提高效率的方案，面對開關電源朝著輸出低電壓大電流方向發展的趨勢，提出多路輸出開關電源新的拓撲優化組合模式? ?有源鉗位正激變換器、同步整流技術、磁放大器。
  2. High - frequency link power converters are receiving increasing attention. when the input frequency of ac - ac converter is quite high, such as 20khz or above, in order to make sure the converter switching action is restricted to the zero crossing point of the link voltage, the switching cycle becomes discrete pulse spectrums, however, the conventional pwm converters are ruled out because they would fail either to the efficiency or the low - distortion criteria

    當交-交變頻器的輸入頻率非常高，通常為20khz時，為了在零電壓條件下實現逆變器開關管的通斷，變換器的開關時刻必須選擇在高頻交流電壓脈沖為零時，這意味著變換器開關時刻在時間軸上成為不連續的點，而常規的硬開關pwm變換器是將開關時刻選擇在任意時刻。
  3. Conventional hard switching technology has several flaws below : on and off loss, inductive off, capacitive on and diode recover problems. comparing with it, the loss of on and off decreases markedly, as the switches are on and off in zero voltage or zero current cases. and also the size of converter becomes smaller because of the higher of switching frequency

    傳統硬開關技術由於存在開通關斷損耗大、感性關斷、容性開通、二極體反向恢復等問題，與之相比，軟開關技術在零電壓或零電流條件下導通，開關損耗明顯降低，加上開關頻率的提高使得變換器的體積得以減小，這也是軟開關技術受到青睞的原因。
  4. The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter

    該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，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。
  5. In this paper, research and manufacture work on high efficiency high power density high - voltage high - power dc power is undertaken on the basis of basic theories and past production. by inquisition the basic theory and project of sreies - parallel resonant converter witch is a soft - switch converter was selected to outspread research and design work

    本文是在吸收前人研究成果的基礎上，理論聯系實際，針對高效、高功率密度、高壓大功率直流電源展開的研製工作。在經過大量的實際調研工作的基礎上，選擇了一種軟開關變換器（移相控制的串-並聯諧振變換器）的技術方案，並圍繞該方案展開理論研究和實際的設計工作。
  6. In chapter 4, considering the features of high voltage transformer and the difficulties to make it, a reasonable design scheme with src was proposed, which efficiently reduced negative influence of distributing parameters of transformer on switching power supply and could completely utilize leakage inductance as resonant inductance

    第四章中分析了高頻高壓變壓器的特點及難點，提出了合理的串聯諧振變換器的設計方案，能夠完全利用變壓器的漏感作為諧振電感，有效地降低了分佈參數給高壓大功率開關電源所帶來的不利影響。
  7. In chapter 2, the nonlinear feature of iron core of transformer in switching power supply was studied. according to the characteristics of switching power supply, the topology structure of resonant converter was selected. the characteristics of out put voltage and current vs. frequency for the three kinds of resonant converter were analyzed and compared

    在第二章中，研究了高壓開關電源中高壓變壓器的非線性特性，選擇了諧振變換器作為高壓大功率開關電源的電路拓撲結構，並對三種形式的諧振變換器的電壓及電流頻率特性進行了分析比較。
  8. A novel cycloconverter - rype three - phase hf link inverter topology for soft - switching based on phase - shifted full - bridge mode is proposed, whose main advantages are as follows : under the conditions of d < i < and overlap - d, the switches of the leading leg are turned on at zvs and the switches of the lagging leg are turned off at zcs and all switches of the cycloconverter circuit are commutated in the overlapping mode in the interval of zero voltage, which makes the circuit realize soft switching to the utmost extent and reliably solve the problem of peak voltage caused by the storing energy of leakage inductance of hf transformer

    論文提出一種新型移相全橋軟開關周波變流型三相高頻鏈逆變器，電路的主要優點是：前級移相全橋的移相角控制在_ d _ i和_ （ overlap ） - _ d條件下，超前橋臂零電壓開通，滯后橋臂零電流關斷，並使周波變流器所有開關在零電壓期間重疊換相，使整機開關最大程度地實現了軟開關，並可靠解決了高頻變壓器漏感儲能引起的電壓尖峰問題。
  9. The goal of this paper is, by serial / parallel combination technique of two - transistos forward converters ( ttfcs ), to keep the merits of the ttfc, and to overcome the shortages of it. the interleaving technique is adopted, while in combining ttfcs. the interleaving technique lowers the net ripple amplitude and raises the effective ripple frequency of the overall converter without increasing switching losses or device stresses

    組合式雙管正激變換器由雙管正激變換器串並聯構成，應用交錯控制策略，在保留雙管正激變換器功率開關管電壓應力低和可靠性高的優點同時，克服了等效占空比小、副邊二極體電壓應力高、輸出電流脈動大等缺點。
  10. First of all, the main - switches of the zvs chopper have zero - voltage turn - on and turn - off totally, so it has little switching losses. for this, the efficiency of the chopper can be improved

    首先，零電壓軟開關斬波器的主功率器件完全實現了零電壓開通和關斷，所以它的熱損耗很小，減小了系統的熱損耗，提高了系統的電源變換效率。
  11. Multilevel inverter technology is a pop research in high voltage and high - power converting fields. it can synthesize multilevel output with the distribution of dc voltage and the combination of different switching actions to reduce voltage stress across the switches and bulk of the equipment, and lessen output harmonic distortion and switching loss of the inverter

    多電平逆變器是當前高壓大功率電能變換領域中的研究熱點之一，它通過對直流側的分壓和開關動作的不同組合，實現多電平階梯波輸出電壓，能有效地減小器件承受的電壓應力，縮小裝置體積，減小輸出電壓諧波和開關損耗。
  12. The tests of e - o applications by our flux ktp has been realized, the results showed : optical waveguides fabricated by using an ion - exchange process, which have an exchange - ion concentration depth profile and refractive - index profile, is close to a complementary error - function distribution, optical homogeneity and device thermal stability is much better. amplitude modulation switch formed by our flux ktp has the contrast ratio of 150 : 1 and insert loss is 2. 5 % at 1064 nm. high quality optical pulse with 1 ns width was cut successfully by using an e - o modulator from a laser pulse with 50 ns width, this modulator had run for three years, and the crystal did n ' t blackened, it showed our low conductivity flux ktp can endure high modulation voltage for a very long time

    Ktp晶體的電光應用試驗表明：用離子交換法製作的電光波導，其離子交換濃度、折射率變化符合餘弦誤差函數，光學均勻性以及器件的溫度穩定性較好；製作的強度調制電光開關，消光比為150 ： 1 ，對1064nm激光的插入損耗為2 . 5 ；製作的電光調制器用於激光脈沖整形試驗，從脈沖寬度50ns的激光脈沖削出脈寬1ns的高質量光脈沖，該電光開關經過長達三年多的使用，沒有出現晶體變黑現象，說明本實驗的低電導率ktp晶體能夠耐受長時間的調制電壓。
  13. Based on the investigation with several voltage control methods, such as venturini method, instantaneous double - voltage synthesis method and space vector modulation method ( svm ), three new control strategies are put forward. firstly, a time - varying modulation coefficient svm method is proposed to improve mc ' s anti - disturbance performance under the asymmetry input voltage. secondly, a 5 - state switching strategy is presented for mc controlled by the svm method, which reduces the commutation number and switching losses remarkably

    在分析了venturini控製法、瞬時雙電壓法、空間矢量法等電壓控制方法的基礎上，提出了在非對稱輸入條件下矩陣變換器空間矢量法的時變調制比改進控制策略，提高了變換器的抗干擾性能；對空間矢量法的開關策略進行了研究，提出了新型5狀態開關策略，在保證其他性能不受影響的條件下，減少了變換器的換流次數和開關損耗；提出了一種矩陣變換器單電壓合成的新方法，它不僅使得變換器的控制簡單，計算量減少，而且使得開關損耗達到最少。
  14. Because of the clamping capacitor and the interleaved structure, it has some good features compared with other flyback converters, such as : the topology is simple and can be realized easily ; the voltage spike of the power switch is availably restrained and without leakage - inductance energy loss ; the ripple of the input and output current is reduced, correspondingly, the volume and weight of the output and input filter is also significantly reduced

    由於箝位電容的加入，相對于其他類型的反激式變換器電路，該拓撲具有一些獨特的優點:電路結構簡單且易於實現;無需另加輔助開關管，實現了開關管的有源箝位，抑制了開關管的電壓尖峰;提高了輸入、輸出電流的脈動頻率，減小了輸入及輸出濾波器體積。
  15. 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。
  16. The two - transistor forward converter has many advantages, especially its low voltage stress, each power switches need to block only input voltage, so it is widely used in high voltage input application

    雙管正激變換器有很多優點，特別是在電壓應力方面，變換器中的兩個開關器件只需承受輸入電壓，因而在高壓輸入的場合得到了廣泛的應用。
  17. The researches have proved the current mode superior to the voltage mode in high - frequency applications. in the paper a general integrator is completed to synthesize a bilinear si filter with a cutoff frequency of 17. 2mhz

    電流模技術的研究已經證明其高頻應用中具有優于電壓模技術的特性，文中對通用積分器加以完善，推導出雙線性變換的開關電流濾波器，其截止頻率達到17 . 2mhz 。
  18. As to the video signal, alarm signal, control signal, are all weak electricity signal, exceedingly easily be subjected to the jam, in case the power supply system does not steady, wave propag ation is greatly, the harmonic content of power source overtops, the veins wave factors are great unduly, and even power source equipment breakdown, outputting abnormal, will be about to affect the video signal image effect, and dependability cuts downs to the security and alarming system. we adopt fast fu lye ' s mutation rule - fft alternatives, by the way of carrying fft alternatives to the local junction circuit, regulated power supply, ups ' s power source, and switch power source, thereby diagnose every degree harmonious wave content of power souse, and abnormal coefficient, compared to the normal working situation. thereby diagnose out the working condition of the regulated power supply, ups ' s power source, and switch power source

    如果有供電系統不穩定、波動大，電源的諧波含量過高，紋波系數過大，乃至電源設備損壞、輸出異常等情況出現，將會嚴重影響視頻信號的圖像效果，大大降低防盜系統的穩定性和可靠性，我們採用快速傅利葉變換原理，即fft變換，通過對市電、穩壓電源、 ups電源、開關電源等的電壓信號進行fft變換，從而得出信號中各次諧波的含量及信號畸變系數，並將其與正常工況下的參數進行對比，從而進一步診斷出穩壓電源、 ups電源、開關電源等設備的運行狀況；組成監控系統的設備長期處于工作狀態，往往由於設備散熱條件不好、設備老化故障等原因導致設備表面溫度過高，從而影響設備的正常運行，降低設備的使用壽命。
  19. The shift capacity also has been improved continually and the shift ways are more perfect with days. my subject study is the vaccum tap switch of the load voltage regulation with the dry transformer, which has features of safety, reliability and convenience for maintain

    開關的切換容量不斷提高。滅弧方式更加完善。本課題研究的是配合乾式變壓器有載調壓的真空分接開關。
  20. Based on comparison between the parallel - parallel and parallel - serial combination ttfc, a novel two - transistor forward converter with parallel - serial / serial combination is proposed. this converter reduces greatly the current overshoot of the primary side switches and the voltage overshoot of the rectifying diodes. moreover, the size and weight of the converter can also be reduced by interleaving technique and increasing frequency

    本文在對並-串型和並-並型雙管正激組合變換器進行了詳細比較研究的基礎上，提出了一種新型並-串串型雙管正激組合變換器，該組合變換器可以大大減小原邊開關管的電流應力和副邊整流電路中二極體的電壓應力；通過交錯控制及提高開關頻率，大大提高了變換器的功率密度。
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