負載換流 的英文怎麼說
中文拼音 [fùzǎihuànliú]
負載換流
英文
load commutation- 負 : Ⅰ名詞1 (負擔) burden; load 2 (虧損) loss 3 (失敗) defeat Ⅱ動詞1 [書面語] (背) carry on th...
- 載 : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
- 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
- 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...
- 負載 : [電學] load
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In order to eliminate the influence of the output filter capacitor current on the grid current, a novel control strategy for the grid - connected inverter in grid - tied and off - grid modes is proposed. the control strategy can also realize seamless transfer between grid - tied and off - gird modes. the grid - connected inverter can supply power to the critical load when the grid is off
本文針對傳統並網控制策略進網電流受輸出濾波電容電流影響的問題,提出了一種新的並網控制策略,該控制策略能基本消除輸出濾波電容對進網電流的影響,實現獨立與並網兩模式之間的無縫切換,對關鍵負載起不間斷供電的作用。Energy consume, electric strength, insulation resistance, ground conductivity, leakage current, microwave leakage, power input, normal temperature, humidity treatment, glow wire, horizontal flame, vertical flame, tracking, ball pressure, rainproof, water splash, dustproof, salt fog, endurance, motor load test, cord flexing, cord pulling, pull & torque test, lamp replacement, construction check etc
能耗、電氣強度、絕緣電阻、接地連續性、泄漏電流、微波泄漏、功率、溫升、濕熱試驗、灼熱絲、水平燃燒、垂直燃燒、漏電起痕、球壓試驗、防雨淋、防濺水、粉塵、鹽霧、耐久性(壽命)試驗、電機負載試驗、電源線彎折、電源線提拉、拉扭力測試、燈頭互換性、安全結構檢查等。Finding a feasible and efficient load balanced strategy for the ultra - scalable multi - plane multi - stage switch architecture is a top of nowadays research. the dissertation proposes a two - stage load balanced scheme for the ultra - scalable multi - plane multi - stage switch architecture based self - routing and non - blocking permutation benes network. the approach uses reasonable and efficient logical queueing strategy and schedule scheme in ingress traffic managers and switch planes to realize the two - stage load balancing of ip traffic which for different destination addresses
本文提出一種適用於基於完全可重排無阻塞benes拓撲構建的多平面多路徑(多級)超大容量交換結構的兩級負載均衡策略,通過在輸入流量管理器和benes交換平面內部實施合理而高效的隊列組織調度方法,有效實現了基於不同目的地址的ip流量在兩個層次上的負載均衡,較好彌補了ciscocrs - 1系統在平面選擇和中間級選擇時所採用的簡單隨機或輪循方案的不足。In order to solve the default of the limited valid scope and discontinuity characteristic, introducing the state continuous conversion gene based on establishment of respective mathematics model for low and magnitude current scope, and integrate with them reasonably then having established the mathematics model of suitable whole scope and having solved present mathematics model existent problems
本文針對目前電弧爐負載數學模型存在的適用范圍有限、特性不連續等缺點,在建立了分別適合大、小電流區域運行特性的數學模型的基礎上,引入狀態連續轉換因子,將分別適合大、小電流區域運行特性的數學模型有機結合為一個整體,建立了適合全范圍的數學模型,解決了目前數學模型存在的問題。( 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。Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system
首先在流變學原理的基礎上,深入分析混凝土在輸送管道內的流動狀態,得出混凝土泵的負載特性方程;然後根據功率鍵合圖的建模方法,建立泵送迴路和分配迴路的數學模型,並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬,分析了在不同的輸入流量(泵送頻率)和換向時間下,活塞桿的位移和系統的液壓沖擊情況,找到了引起液壓沖擊的根本原因(即分配迴路的響應時間(固定值)與活塞桿的運動時間(變化值)不相匹配) ,並提出了相應的改進方法。Zero - voltage turn - on and zero - voltage turn - off in lagging arm and leading arm of soft - switching topology, working waveform of power transformer and process of rectifier and transition are presented in detail. the influence of resonant inductance of the power transformer, resonant capacitor and variation of load to the process of soft - switching are given
主要對軟開關滯后橋臂和超前橋臂的零電壓開通、關斷過程,功率變壓器的工作波形及整流換流過程進行了詳細的模擬分析,並重點討論了逆變器的諧振電感、諧振電容以及負載變化對軟開關過程的影響。The typical performance characteristics include : line and load transient response, efficiency, output voltage ripple, quiescent current, maximum load current, output voltage temperature characteristics and the short
其中,整體模擬指標包括:晶元線性調整率和負載調整率、轉換效率、輸出電壓紋波、晶元靜態電流、最大負載電流、輸出電壓溫度特性及短路負載電流。The result shows that, when the full - bridge power converter is joined with boost / buck dc chopper in parallel, it can serve a dc voltage of over 340v and a power of 800w, meanwhile, as output voltage of the fuel cells changes due to loadings, the sliding - mode controller can cause more rapid responses and robustness to the dc bus voltage source
實驗結果顯示,本論文之全橋式功率轉換器與升壓/降壓直流截波器並聯供電時,輸出電壓可達340v以上,輸出功率約為800w ,同時,當燃料電池之輸出電壓因負載而改變時,本論文所提出之滑動模式控制器能使直流鏈電壓具有較快速的響應及強健性。In fact, the electronic ballast is also a kind of power supply converter, but, because of the especial requirement of the hid lamps for electronic ballast, the design of it is very complex
電子鎮流器實際上是一種電源變換裝置,由於hid燈負載對電子鎮流器的特殊要求而增加了其設計的復雜性。Purpose of the rectifier transformers is to operate with the ac / dc power converters connected to them, to adapt the power line voltage to the voltage required by the load but can ' t provide galvanic separation between load and power line
整流變壓器的作用是連接到ac / dc電源轉換器上將電源側電壓轉換為負載所需電壓但不提供負載和電源之間的電隔離。These topologies of inverters are composed of two bi - boost dc / dc converters, they are symmetry. so whole circuit turn into four - quadrant converters, we can control every power mosfet on or off. then we can get sine wave with direct current polarization at the left, at the same we also can get sine wave with direct current polarization phase contrast 180 compared of the left at the right
這類逆變器由左右二個雙向boostdc / dc變換器構成,左右二邊是對稱的,所以整個電路構成了一個四象限變換器,我們可以恰當控制各功率管的開、關,使左邊的兩象限dc / dc變換器輸出一個帶直流偏置的正弦波,使右邊的兩象限dc / dc變換器輸出一個相差180度帶同樣直流偏置的正弦波形,這樣,負載zl上的電壓是左、右兩個dc / dc變換器電壓的差動輸出,正好可以消掉直流偏置,最終在負載r1上得到的就是正弦波。Aeronautical static inverter ( asi ) is a kind of static converting device, which converts the dc ( 27v / 270v ) in the main power of aircraft into ac of constant - voltage and constant frequency by means of power semiconductor devices. with the development of the aircraft, all the electric equipment on the plane requires the power supply system with better performance
航空靜止變流器( asi ? aeronauticalstaticinverter )是航空電源系統的二次電源,其作用是將飛機主電源直流電27v或270vdc變換成恆壓恆頻單相115v 400hz ,單相36v 400hz ,三相115v 200v ,或三相36v交流電,供飛機上負載使用。The current in the dac ’ s output can drive the load, and the structure can save a buffer consisted of operational amplifier, so the structure can achieve high speed with no close - loop and feedback in this circuit
該10位分段式電流舵型數模轉換器的輸出端可直接用電流輸出來驅動負載阻抗,省去運算放大器構成的輸出緩沖,整個電路中沒有形成閉環和反饋,因此這種電路結構可以達到很高的速度。The test results demonstrate that this prototype has excellent comprehensive performances such as small bulk, lower weight, high efficiency, high steady precision, fast dynamic response, wide range input voltage, good output waveforms, strong over - load and short - circuit ability, and strong function with different nature load and three - phase unbalanced load
試驗結果表明,該變流器具有體積重量小、變換效率高、靜態精度高、動態響應快、輸入電壓變化范圍寬、輸出波形質量高、過載與短路能力強、帶不同性質負載和帶三相不平衡負載的能力強等優良的綜合性能。4. through using the concept of logic balance, a high performance telecommunication switch network test chip is accomplished by using xilinx virtex 300e - 6 and the working clock frequency is up to 125mhz. this chip can give an exact test for the network delay time, throughput, network delay time dither, rate of errors and lost data
4 )結合邏輯平衡的思想,採用xilinxvirtex300e - 6器件,為一家著名的通訊技術有限公司設計了速度達125mhz的交換網測試晶元,能夠對交換網的吞吐率,網路延時,網路延時抖動,數據包錯誤率,包丟失率等進行嚴格的測試,並根據當前網路的流量大小自動調節網路負載。Power cables - part 1000 : current - carrying capacity, general, conversion factors
電力電纜.第1000部分:電流負載容量總則換算系數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。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。A 2kva prototype is built to verify the validity of the proposed inverter
通過一臺2kva的原理樣機,驗證了該變換器的優點和負載電流前饋方法的有效性。分享友人