流入電流 的英文怎麼說
中文拼音 [liúrùdiànliú]
流入電流
英文
inrush current- 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...
- 入 : Ⅰ動詞1 (進來或進去) enter 2 (參加) join; be admitted into; become a member of 3 (合乎) conf...
- 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...
- 流入 : inflow; influx; indraught流入角 fluid inlet angle; influx angle; 流入量 influx; inflow
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
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Analysing and restraining the surge current of tsc arc suppression coll
式消弧線圈的湧入電流及其抑制To reduce the harmonics in the line current, the random pwm mode is adapt. related to the typically constant pwm carrier frequency and its high harmonics, modulation of this frequency can be used to decrease emi and cost no more gain
為了抑制輸入電流中一些幅值較大的諧波成分,利用dsp控制的特點,電路採用了隨機pwm方式,在不增加系統成本的前提下,有效地抑制了輸入電流的高次諧波含量。A topological study of representative single - stage pfc converters are presented. in sigle - stage pfc approach, there are two important issues of concern. one issue is how to implement the input current shaper ( ics ). another one is how to control the energy - storage capacitor voltage below 450v
本文對現有的單級pfc變換器拓撲進行了詳細的分析,指出在單級pfc變換器中,必須解決兩個問題:如何實現輸入電流整形和控制電容電壓在450v以下。Ppfc working principle, circular current and effects of clamping capacitor are studied in this paper in detail. because of the clamping capacitor, ppfc have some good features compared with ppc : reducing the fluctuate of the input current ; restraining the voltage spike of the power mosfet ; avoiding the bias - magnetic of the transformer
由於箝位電容的加入,相對于推挽電路而言,該拓撲具備了一些獨特的優點:減小了輸入電流的脈動:削弱了開關管的關斷電壓尖峰;有效抑制了變壓器的偏磁。Input current is discontinuous ( chopped )
輸入電流不連續(斬波) 。There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not
首先引入開關函數概念,建立了正弦脈寬調制( spwm )逆變器供電異步電動機,考慮主磁路飽和時的變頻調速系統整體數學模型,模擬系統的低頻振蕩;其次從逆變器-異步電動機系統能量轉換角度出發,提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c ( f _ c為逆變器載波頻率)來判定系統是否出現低頻振蕩;最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。As the injection current is increased above the threshold value (10. 7-24), the laser oscillation intensity builds up.
當注入電流增加到由式(107-24)表示的閾值以上時,激光振蕩強度就會增長。Abstract : presents the in - depth investigation of the influence of algae, humic acid and low turbidity on the flow current response characteristics of water in lakes or reservoirs for the successful application of flow current self - controlled coagulant dosage system
文摘:近年來,在國內多家以地表水為水源的水廠的混凝投藥生產實踐中已經較為成功地應用了流動電流自控投藥系統,而對于具有特殊水質特徵的湖泊、水庫水的流動電流響應特性尚未進行較為深入的研究,本文將分別就藻類、腐殖酸、低濁對流動電流響應特性進行詳細的探討。To reduce the inductor and the phase displacement between the input current and the input voltage simultaneously, multi - level ( ml ) converters are adopted as the pfc topologies in this thesis
為了同時減小電感和輸入電流與輸入電壓間的相位差,本文提出採用多電平變換器作為pfc變換器的拓撲。The characteristics of three - level ( tl ) converter and its effect to the zero - crossing distortion are analyzed, and extended it to ml converters, which are suitable for the high input frequency pfc application
文章詳細分析了三電平( three - level , tl )變換器的特點和對輸入電流過零畸變的改善作用,並推廣至多電平變換器。Rated input current
額定輸入電流值Firstly, this paper proposes the mathematical model and finite - element analysis model of torque motor with mf and without mf. secondly, the electromagnetic field of torque motor is analyzed using the ansoft maxwell software ; static output torque of torque motor with mf and without mf is calculated. then the rotary angle of torque motor with different input electric current and mf is measured using three - coordinate measurement device
本文首先給出了添加磁流體和不添加磁流體的力矩馬達磁路數學模型及有限元分析模型,其次,利用ansoft公司的maxwell電磁場分析軟體進行了力矩馬達的二維和三維磁場有限元分析,對添加磁流體和不添加磁流體的力矩馬達靜態輸出力矩進行了計算,並採用三坐標位移測量儀對不同輸入電流作用下、添加不同特性磁流體時力矩馬達的轉角進行了測量,從而對輸出力矩特性進行了實驗研究。In order to measure the characteristics of such semiconductor optical amplifier, we adopted a set of measurement system. this measurement system can be used to measure the characteristics of all kinds of active or inactive optical passive components. such device presents good polarization insensitivity ( < 0. 9db ), wide 3db bandwidth ( > 33nm ) at 0 - 200ma and different input signal light wavelength and power, the maximum fiber - to - fiber gain of 10db, lossless operation current of 50 - 75ma for different input signal light wavelength and power, large extinction ratio ( > 50db ) and lower noise figure ( nf ) ( < 8db )
與張瑞英博士一起,首次利用該種有源區結構制備出偏振不靈敏半導體光放大器,並在0 - 200ma注入電流范圍內獲得33nm的3db帶寬,在不同信號波長,不同信號功率0 - 200ma的注入電流范圍內,偏振相關損耗均《 0 . 9db ,在耦合差損為7db / facet的條件下,最大fiber - to - fiher增益達10db ,無損操作電流為50 - 70ma ,消光比達50db以上,而噪聲指數則低於8db ,最小可達4 . 6db 。A new viewpoint to observe the relation of bus voltage, bus current injection and branch current of the network considering branch mutual inductance has been provided in this paper. the process of building the z - matrix of a large - scale power network is set forth in particular in this paper. and the method is employed in the fault computation system successfully
本文為了從演算法上提高故障計算的速度,在完全計及支路互感的前提下,利用節點注入電流與支路電流以及支路電流與節點電壓的關系,提出了一種能夠統一處理互感和無互感線路、快速形成大規模電網節點阻抗矩陣的新方法。Then the direct ac - ac converter was gotten by eliminating the middle direct current link
整流階段,採用輸入電流空間矢量調制;逆變階段,採用輸出電壓空間矢量過調制模式。The displayer based on pic16f877 mcu, expanded the can communication circuit, the keyboard and the led. in the part of the software design, the intensity signal processing algorithm, the frequency signal processing algorithm and the keyboard program are conducted
在二次儀表硬體電路設計中,詳細介紹了輸入電流電壓轉換電路、強度信號處理電路、頻率信號處理電路以及電源電路,數字電路部分以pic16f877為核心,擴展了can通訊介面,鍵盤及顯示部分。After introducing the background and the trend of research on ppv thin film light - emitting diodes ( leds ) and the structure of ppv device and its characterizes, the theoretical model of the leds * light - emitting efficiency was presented. based on this model, the formula of light - emitting efficiency was deduced to be : the injecting - currents and the recombining - efficiencies were calculated nwnerically, we found the calculated results agreed very well with the experimental results under the electric field from 0. 5 x 106 to 1. 5 x 106v / cm, the numeral calculations and theoretical analyzes of the light - emitting efficiency were done. the conclusions were as follows : ( 1 ) the basic mechanism of the injection transportation and recombination of the carriers which were presented in this paper were proved to be right ; ( 2 ) the electroluminescence in ppv thin film is the result of exciton recombination, the light - emitting efficiency was affected by many factors
本文主要研究聚對苯乙炔( ppv )薄膜發光二極體發光效率及主要影響因素,簡單地介紹了ppv薄膜發光二極體的研究背景及發展趨勢、 ppv器件的結構和性質后,提出了一個計算器件發光效率理論模型,利用這個理論模型得出了發光效率公式的表達式:並對注入電流、復合效率等進行了數值計算,通過合理地選擇計算參數,發現計算值在場強為0 . 5 10 ~ 6 1 . 5 10 ~ 6v / cm的范圍內與實驗結果較好地符合,在此基礎上,對發光效率進行了數值計算和理論分析,結果表明:計算結果與理論研究結果相符較好,得出結論如下: ( 1 )本文的理論推導正確地反映了器件中載流子的注入、傳輸和復合等基本機制; ( 2 ) ppv薄膜中的電致發光是激子復合的結果,發光效率受多種因素影響。The input of traditional ac - dc converter is diode - capacitance combined circuit. it ? input current wave presents pulse shape, and the power factor ( pf ) on ac line side is low
傳統的ac ? dc開關變換器輸入端是二極體整流-濾波電容組合電路,其輸入電流波形呈脈沖狀,交流網側功率因數很低。The mc controlled by this strategy not only achieves the dtc of asynchronous machine with excellent dynamic performance but also acquires good input currents and an adjustable power factor
按這種策略進行控制的矩陣式變換器,既可實現對異步電機進行動態性能優良的直接轉矩控制,又可獲得良好的輸入電流波形以及可調的功率因數。Like the boost, the input current is smooth and output current is not
與升壓一樣,輸入電流平滑而輸出電流不平滑。分享友人