電壓應力 的英文怎麼說
中文拼音 [diànyāyīnglì]
電壓應力
英文
voltage stress- 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...
- 壓 : 壓構詞成分。
- 應 : 應動詞1 (回答) answer; respond to; echo 2 (滿足要求) comply with; grant 3 (順應; 適應) suit...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 電壓 : voltage; electric tension; electric voltage
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The converter has the advantages including zvs for the switches, no voltage spike across the rectifier diodes, simple circuit and constant frequency control
該變換器具有開關管電壓應力低、實現軟開關容易、副邊整流管沒有電壓尖峰等優點,適合中大功率場合。Test method for dielectric breakdown voltage and dielectric strength of electrical insulating materials under direct - voltage stress
直流電壓應力下電氣絕緣材料的介電擊穿電壓和介電強度的試驗方法Insulation coordination for equipment within low - voltage systems - part 4 : considerations of high - frequency voltage stress
低壓系統內設備絕緣協調性.第4部分:高頻電壓應力問題The operation of buck tl converter are analyzed as well as parameter design and input / output characteristics. hfb tl converter has two phase legs, one is three - level leg, the other is two - level leg
Buck三電平變換器具有將開關管電壓應力減小一半,大大改善輸出濾波器工作條件的優勢,論文詳細分析它的工作原理、參數設計和外特性。Because the switches suffer only the half of the input voltage, the three - level ( tl ) converters have been attracting more and more attentions. this thesis proposes a family of zero - voltage - switching multi - resonant three - level dc / dc converters
三電平變換器可以降低開關管的電壓應力,並且可以減小輸出濾波器(或儲能元件)的大小,近年來逐步成為電力電子技術的一個研究熱點。The multi - level ( ml ) converter has the advantages such as low voltage stress for power devices, smaller output filters and reduced harmonic content of the output voltage, it is very suitable for high voltage and high power conversion applications
多電平變換器具有電壓應力低、輸出濾波器小及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。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。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。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。One is that the operation duty cycle can not be larger than 50 % because of the requirement for the transformer resetting. as a result, the voltage stress of the secondary diode is high, which limits the usage of dfc in high output voltage application
但由於變壓器磁芯復位的需要,其工作占空比必須小於50 ,從而造成占空比利用率不高,變壓器副邊電壓高,副邊高頻整流二極體的電壓應力大。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。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。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。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。Two kinds of common used snubber circuits are studied through simulation and experiment. it is pointed out that the rcd snubber has less power loss. increasing the turn ratio of transformer is helpful for the energy, which is stored in the primary side of transformer, to be transferred to the secondary side
通過實驗和模擬,對比研究了電路中周波變換器的兩種常用的緩沖電路,指出採用rcd緩沖電路損耗更小;提高變壓器匝比有利於減小鐵芯儲能的回饋,提高逆變器變換效率,但它同時也增加了副邊功率管的電壓應力,必須綜合兩方面確定合理的匝比。The ml converter splits voltage constraints among series - connected switches through the flying capacitors, so keeping the flying capacitor voltages at proper value is very important
該變換器利用飛跨電容使得輸入電壓在串聯的各開關管之間均分,以降低開關管的電壓應力,因此飛跨電容電壓保持在適當值是保證變換器正常工作且具有良好性能的關鍵。The characteristic of those topologies are analyzed in detail. a novel isolated interleaving two - transistor forward boost converter is proposed in this paper. this converter has less voltage stress of power switches, and no transformer magnetic deviation
研究一種新穎的隔離boost變換器,它具有開關管電壓應力低,沒有變壓器單向磁飽和問題,可以實現交錯並聯雙管正激電路所有開關管零電壓開關。The converter not only keeps all the characteristics of the basic zvs pwm h - fb tl converter, but also eliminates the voltage oscillation and voltage spike across the rectifier diodes in both three - level mode and two - level mode, leading to a reduced voltage stress of the rectifier diodes
本文在基本zvspwmh - fbtl變換器中引入兩只箝位二極體,無論是在三電平模式還是在兩電平模式,都可以消除輸出整流二極體反向恢復造成的電壓尖峰和振蕩,降低了輸出整流管的電壓應力。Compared with quasi - resonant, it can reduced transistor voltage stress and improved load range and stability in low frequency range. because of the structure of three - level, transistor voltage stress and filter can be reduced significantly
與傳統的準諧振變換器相比,該變換器功率器件的電壓應力大大降低,在很窄的開關頻率變化范圍內實現寬負載范圍的軟開關。The switches of the two - level leg suffer the input voltage and can realize zero - current - switching ( zcs ) in a wide load range, so the igbt can be adopted. the voltage across the output filter is a tl waveforms, which reduces the output filter. the input current of hfb tl converter is nearly a dc current, which reduces the input filter
復合式全橋三電平變換器不僅可以將開關管電壓應力減小一半,大大改善輸出濾波器工作條件的優勢,還可實現所有開關管的全負載范圍軟開關,本文詳細分析該變換器的工作原理、參數設計、控制方案,並進行實驗驗證。分享友人