高壓電橋 的英文怎麼說
中文拼音 [gāoyādiànqiáo]
高壓電橋
英文
high tension bridge- 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。
- 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...
- 橋 : 名詞1. (橋梁) bridge 2. (姓氏) a surname
- 高壓電 : haute tension
- 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...
-
A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter. each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge. the control strategy of voltage mode pwm forwardback is adopted by the former, and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later
每個獨立的航空靜止變流器採用占空比擴展有源箝位正激式高頻脈沖直流環節電路拓撲,由占空比擴展有源箝位正激式高頻脈沖直流環節電路與dc ac逆變橋級聯而成,前級採用電壓型pwm前饋控制技術,后級採用三態dpm電流滯環控制技術。Then novel circuit structure of bi - directional voltage mode ( based on forward converter ) inverters with high frequency link, are proposed, which is constituted of input cycloconverter, high frequency transformer, output cycloconverter, input and output filter ; the circuit topologies family of this bi - directional voltage mode inverters with high frequency link include six circuit topologies, such as push pull - full wave mode, push pull - full bridge mode, half bridge - full wave mode, half bridge - full bridge mode, full bridge - full wave mode, and full bridge - full bridge mode etc. taking full bridge - full bridge mode circuit as an example, principle of uni - polarity phase shifting controlled bi - directional voltage mode inverters with high frequency link is introduced
本文首先論述了dc / ac逆變技術的應用前景及發展現狀。基於正激forward變換器的雙向電壓源型高頻環節逆變器電路結構,由輸入周波變換器、高頻變壓器、輸出周波變換器、以及輸入、輸出濾波器構成;雙向電壓源高頻環節逆變器電路拓撲族,包括推挽全波式、推挽橋式、半橋全波式、半橋橋式、全橋全波式、全橋橋式六種電路。The thesis includes two parties : research on 2kw multi - function ac excitation power and study on high voltage high power ( hh ) dc / dc full - bridge converter
論文包括兩個部分: 2kw多功能交流勵磁電源研製和高壓大功率dc dc全橋變換器研究。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。Electro - hydraulic servo control ' s technology becomes an important constitute of modern time control technology as a bridge between the micro - electronics, computer technology and electro - hydraulic control technology. for electro - hydraulic servo control ' s technology has the advantage of fine linearity, little deadband, high sensitivity, fine dynamic performance, rapid respond, high precision and so on, it is used in many fields
電液伺服控制技術作為現代微電子技術、計算機技術和液壓技術的橋梁,已經成為現代控制技術的重要組成部分。由於它具有線性好、死區小、靈敏度高、動態性能好、響應快、精度高等顯著優點,因而得到了廣泛的應用。The height adjustment for the yardramp become very easy with using of the hand hydraulic pump as dynamic and the exteral electric supply is unnecessary
採用手搖液壓泵作動力,無須外接動力電源,即可輕松實現登車橋高度的調節。Have properties of standing high temperature and pressure, waterproof, antisepsis, preventing aging. they are convenient for cutting and making model. they can be used many times repetitively and are first selecting material in constructing bridge, building, nuclear power station and architecture industry
耐高溫高壓超強防水防腐防老化,便於切割做模,能多次重復使用,是橋梁高樓大廈核電站和建築行業混凝土施工的首選材料。High voltage capacitance bridges
高壓電容電橋Due to the complexity of the structure and control of cycloconverter - type three - phase hf link inverter for soft - switching based on phase - shift - controlled full - bridge mode, a simple and optimized vvvf control strategy is proposed. this control strategy includes : produced pwm by space voltage vector ( svm ) and equivalent carrier frequency fe = 1 / te are introduced into the pdm control of the cycloconverter ; softened equivalent pwm wave is generated at the notches of hf voltage pulses ; the harmonious control between regulating pulse width by phase - shifted angle and regulating voltage of equivalent pwm is to minimize the harmonics content of output voltage of the inverter
西安理工大學博士學位論文針對這種前級移相全橋軟開關周波變流型三相高頻鏈逆變器結構和控制的復雜性,提出了一種實現簡單而整體優化的vvvf控制策略:將空間電壓矢量產生p姍的方法svm和等效載波頻率fe = 1 / te引入到周波變流器的pdm控制;按高頻電壓脈沖前後沿軟化等效p翎波;用移相調節高頻脈沖寬度和等效p姍調壓協調控制逆變器輸出電壓,在滿足輸出電壓條件下使諧波最小。The variable polarity power supply circuit uses two stages full - bridge inverter, the former inverter is regarded as a constant - current source with fast dynamic response, and supplys energy for the second one, and the latter one is to produce variable polarity current excellently, and low - frequency pulse current by variable polarity power supply is used to reduce input energy and control the shape of weld bead while welding. a series of high - frequency pulse current is superposed on direct - current - electrode - negative ( dcen ) current through the high - frequency pulse power supply, which is used to compress the arc and improve process of crystallization
其中變極性電源採用二次全橋逆變結構,一次逆變提供快速的響應速率並給二次逆變提供能量,二次逆變提供良好的變極性性能,使輸出能量最優化,並用其低頻電流特性減小電弧線能量,控制焊縫成形;高頻脈沖電源提供的高頻電流疊加在反極性電流dcen上,利用電流的高頻特性壓縮電弧,改善焊縫金屬結晶過程。It will effect the system in safety and running economy directly > test of tradition past the method is an usage to give or get an electric shock the bridge method or direct current to press to decline the method to proceed to measure, and the electric current for producing of is only in the ma class which ca n ' t broke through the oxidize surface
高壓斷路器是電力系統中最重要的控制和保護設備之一,它對系統的安全、經濟運行有著直接的影響。以前傳統的測試方法是使用電橋法或直流壓降法進行測量,所產生的電流僅在ma級,不能擊穿觸頭氧化膜。Epdm colored granule is not only used in the track and field racetrack, all kinds of court, universities, middle and primary schools, stadium, still used in the slipresistance passway around the swimming pool, gymnasium, overpass, underpass, protecting such numerous respects as the place, ward, activity of disabled person and training court, distribution room, computer room of the army, the bathroom, kindergarten, nursery bottom game, etc
三元乙丙橡膠可用於製造耐熱輸送帶蒸汽膠管耐化學品腐蝕的密封製品極適用於橋梁碼頭軌道枕墊等緩沖及減振材料各種防水材料各種膠板和護套等它又是電線電纜的良好絕緣材料,特別適用於高中壓電纜還可製造各種汽車配件。A 3kw prototype converter is built to verify the effectiveness of the improved converter and the best scheme for the blocking capacitor, and the experimental results are also included in this paper
本文將改進型零電壓全橋變換器應用於高壓直流二次電源dc dc變換器中,研製出一臺3kw工程樣機,並給出實驗結果。In high output voltage applications, the output inductance of the buck fb converter will be sustain high voltage, resulting in complicated manufacture method. in multi - output applications, the buck fb converter has poor cross regulation
Buck型全橋變換器在高輸出電壓應用場合,其輸出濾波電感需要承受較高的電壓,使得製造工藝復雜;在多路輸出時,交錯調節能力差。In this paper phase shift full bridge sreies - parallel resonant converter is expatiated witch is good project for design of high - voltage high - power power at present. besides those we discussed basic process and practical rc load model of sreies - parallel resonant converter
論文闡述了移相控制的全橋串並聯諧振變換器,目前它是滿足高效、高功率密度、高壓大功率直流電源設計的一種很好技術方案;本文闡述了運用基波分析方法建立的串並聯諧振變換器的等效電路模型。The design of 270 voltages high - pressure dc drive is settled utilizing bridge inversion circuit in this thesis. the miniaturized and low consumed design of hardware circuit and the design of dual - redundancy structure of system are also realized adopting tms320lf2407a dsp chip as main control cell
論文應用全橋式逆變電路解決了系統270v高壓直流驅動設計,採用tms320lf2407adsp晶元為主控單元,實現了系統硬體電路小型化、低功耗設計及系統雙余度結構設計。However these converters become more complicate. phase - shift zvs technique has been used in bidirectional dc / dc converters since it can realize zvs for all switches without auxiliary switches. however when the amplitude of input voltage is not matched with that of output voltage, the current stresses and rms currents of the converters become higher, in addition the converters can not achieve zvs under light - load condition
諧振、準諧振或多諧振技術方案,變換器的電壓電流應力較高,變頻控制增加了濾波器設計的難度;能量緩沖吸收電路或有源鉗位電路方案,由於需要增加多個額外輔助元件,增加了變換器的復雜性;全橋相移技術方案,由於主電路無需增加額外元件,只需利用相移控制,即可實現軟開關,因此引起關注。To reduce the emi, reverse reset of the diode are studied, and design way about spike - killers and saturable inductors witch can suppress voltage and current spikes are showed. in this thesis, a transformer clamping full - bridge dc / dc converter is presented to salve the high input voltage. in this chapter, the operating principle is analyzed and experimental results have been showed on the 2kw converter
在處理高壓問題上,本文又提出了變壓器箝位高壓大功率dc dc全橋變換器拓撲方案,文中對其工作原理進行了分析,文中以一臺2kw的原理樣機對其工作原理進行了驗證,很好地解決了輸入電壓高的問題。Abstract : the uni - polarity phase - shifted controlled voltage mode ac / ac converters with high frequency ac link based on forward converters are firstly proposed and deeply investigated. this kind of converters is constituted of input cycloconveter, high frequency transformer, output cycloconverter, input and output filters. it includes full bridge - full wave mode and full bridge - full bridge mode topologies, the former is suit for low output voltage field and the later is suit for high output voltage field
這類變換器由輸入周波變換器、高頻變壓器、輸出周波變換器、以及輸入、輸出濾波器構成,包括全橋全波式、全橋橋式兩種電路,前者適用於低壓輸出變換場合,後者適用於高壓輸出變換場合。Abstract : the multifunctional inverter power sourcethe handy inverter welding, plating & charging manchine, developed with advanced inverter and micro - electronics control techniques, adopts “ half - bridge power expansion supply midpoint voltage autocontrol setting ”, and technically and effectively having solved inverter subvision of inverter power expansion circuit for leaning magnetism, reliability of high - power inverter setting, achives combination of constantcurrent and constantvoltage export, and realizes low - voltage dc and high - voltage ac double power supply
文摘:運用先進的高頻逆變技術和微電子控制技術設計研製的逆變式多功能電源便攜式逆變焊鍍充電多用機,採用「半橋式功放級供電中點電壓自動控制調節裝置」 ,在技術上解決了逆變功放電路因偏磁而造成的逆變顛覆,有效地解決了大功率逆變器的可靠性問題;進行多種外特性的綜合設定,實現了恆流與恆壓輸出的合一;與傳統焊機相比,實現了開環和閉環狀態下都互不影響的低壓直流電瓶和高壓交流雙供電分享友人