正弦電壓 的英文怎麼說
中文拼音 [zhēngxiándiànyā]
正弦電壓
英文
sine voltage-
The experiment apparatus has been developed, which is based on software ( labview ) and hardware ( pci board ni 6024e ). the displacements and generative force at the tip of the ipmc actuators were measured with respect to the different voltages, frequents and various waveforms which include square, sinusoidal, and triangular wave
實驗選取了不同電壓幅值,不同頻率的方波、三角波、正弦波三種波形作為電激勵信號,利用高速攝像記錄ipmc的位移變形,並通過力傳感器實測了ipmc試樣末端的輸出力。Experimental results certify that the proposed flyback inverter features small thd in the output sinusoid voltage, small size, light weight and fast dynamic response
研製的100va原理樣機實驗結果表明,該逆變電路輸出正弦電壓失真度小,體積小,輸出動態及靜態性能良好。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。In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high
針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析,變頻器輸出的電壓波形諧波大,沖擊大,電壓上升率高達6600v / s ,是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低,額定頻率在8 - 20hz ;調速范圍寬,最低運行頻率低到0 . 5hz ,起動次數相當頻繁,每小時高達600 - 800次,沖擊負荷大,過載能力要求較高。For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions
針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機,本文提出一種基於六個離散位置信號的自同步svpwm (電壓空間矢量法)控制方法,用以削弱電磁轉矩脈動,分析了實現這種方法的主要控制環節,包括起動時電壓空間矢量的初始定位,阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。The ideal power system needs to be supplied with sine voltage whose frequency and amplitude are both stable. to three - phase ac power system, the currents and voltages must be equal of amplitude and the phase - shift between each other should be 120 of positive order
理想的電力系統要求以頻率和幅值穩定的正弦電壓進行供電;對於三相交流電力系統,各相電壓和電流應處于幅值大小相等、相位互差120的正序對稱狀態。Three - phase dry - type distribution transformers 50 hz, from 100 to 2500 kva with highest voltage for equipment not exceeding 36 kv - determination of the power rating of a transformer loaded with non - sinusoidal current
小於36kv設備的最高電壓值為50hz 100 - 2500kva三相干式配電變壓器.負載非正弦電流的變壓器額定功率的測定Three phase oil - immersed distribution transformers, 50 hz, from 50 to 2500 kva with highest voltage for equipment not exceeding 36 kv - determination of the power rating of a transformer loaded with non - sinusoidal currents
小於36kv設備的帶有最高電壓值50hz 50 - 2500kva三相油浸式配電變壓器.載有非正弦電流的變壓器額定功率測定The response of rl circuit under sinusoidal excitation
電路對正弦電壓瞬變響應及其後果Three - phase oil - immersed distribution transformers 50 hz, from 50 to 2500 kva with highest voltage for equipment not exceeding 36 kv. part 4 : determination of the power rating of a transformer loaded with non - sinusoidal currents
最高電壓不超過36 kv的設備用50 hz 50至2500 kva三相油浸配電變壓器.第4部分:加載非正弦電流的變壓器功率額定值的測定With the development of modern industry, the nonlinear loads of power system are greatly increased. they absorb the non - sine current waves from power network and result in voltage aberrance. voltage aberrance makes the power quality severely deteriorate, endangers the safe and economical running of power system and affects some users ’ s normal work
隨著現代工業的發展,電力系統中的非線性負荷大量增加,這些非線性負荷從電網吸收非正弦電流,導致電網電壓發生畸變,使電能質量嚴重惡化,危及電力系統安全和經濟運行,影響了用戶的正常工作。This digital amplifier made up of a digital inverter can implement the sine voltage signal ' s power amplifying based on the digital signal processor. with the high processing ability of dsp, the advanced digital control arithmetic can be realized in the software. also the feasible and effective technique for the time delay compensation of digital control can be achieved
該放大系統用數字化逆變器來實現電力系統正弦電壓信號功率的放大,利用dsp數字處理器高速的處理能力,可以使系統實現高性能的演算法控制,並且能靈活地對系統的誤差進行補償,從而實現逆變系統的高性能和高精度,為解決電力系統電容式互感器二次側帶負載能力弱的問題進行了有意義的研究。The topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full - bridge mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of the converter are investigated. the output characteristic curve, the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1 / n times line voltage frequency are given
該電路拓撲族包括單四象限功率開關式、推挽式、半橋式、全橋式電路,以全橋式電路為例分析研究了這類換器工作模式、穩態原理與電壓瞬時值反饋控制策略,給出了變換器的外特性曲線、關鍵電路參數、與電網電壓n倍頻或n分頻信號同步的基準正弦電路的設計。Since the analysis of the inverter and its control system is very complex, the frequency analysis, time domain analysis and control system is made in capacitance operated conditions limited to pressure of time and paper length. the research content can be summed up as follows : ( 1 ) a new equivalent circuit of dbd circuit ( dielectric barrier discharge ) that consider the consume of transformer, the on - off switching loses and so on is presented based on the ozonier powered by sine current source. as compared with the former equivalent, the new equivalent circuit can be depicted the actual ozone circuit accurately
本文主要針對容性狀態下的臭氧發生器電源進行相關研究,研究內容包括以下幾部分: ( 1 )在正弦電流源供電的dbd型發生器的基波等效電路基礎上,提出了一種考慮電路雜散損耗(變壓器勵磁損耗、開關管開關和導通損耗以及其他元件的熱損耗)的改進型基波等效電路,並採用該等效電路得出了適用的臭氧發生器電源設計方法,實驗驗證了該基波等效電路具有工程設計精度高的優點。The 500va experimental prototype of aero static inverter has the advantages of flat volt - ampere characteristic, small thd of output sinusoid voltage, high efficiency, small size, light weight and low cost
500va輸出的航空靜止變流器樣機試驗結果表明,逆變電路輸出外特性平直,正弦電壓失真度小,變換效率高,體積小,成本低。Counting of the stable state of uniform long - line affected by sine wave
正弦電壓作用下勻長線穩態計算Withstanding voltage testers the laboratory offers calibration for withstanding voltage testers with sinusoidal output voltages ( 50 hz ) not exceeding 11 kv ( r. m. s
本所為輸出正弦電壓50hz不超過11kv均方根值的交流耐壓測試器提供校正服務。Calibration will be made by applying appropriate sinusoidal voltage and current signals with known phase relationship to the meter under test. the ranges of test voltages and currents are 25 v to 250 v and 50 ma to 100 a respectively
按已知的相位關系,將適當的正弦電壓及電流訊號加於接受測試的功率因數表,以進行校正。測試電壓及電流量程分別為25v至250v及50ma至100a 。The experiment result shows that conversion efficiency in ccm is improved by 2 percent compared with that in dcm, although the on - resistance of winding in ccm is more than that in dcm. the analysis of open - loop transfer function in both dcm and ccm shows that pull - push hfl inverter at ccm
微分補償網路的推挽高頻鏈逆變電路在輸出從空載變化到額定阻性負載變化的過程中,逆變電路工作模式從dcm變化到ccm模式,實驗結果表明電路在這兩種模式下都能輸出穩定的正弦電壓,且具有較高的穩態精度。During the process of numerical calculation of electromagnetic, the stator terminal voltage is set as restriction condition and the starting current is iterated in order to obtain the starting current and starting torque under the rating voltage. finally, the calculated results and measured results are compared to test that the calculation of starting performance can agree with the need of practical engineering project
在電磁場的數值計算過程中,以定子端電壓為約束條件,對定子起動電流進行了迭代計算,得到了額定電壓下的起動電流和起動轉矩,最後把正弦電磁場計算結果與實測結果進行了對比,表明復合籠條轉子感應電動機起動性能的計算結果滿足工程實際的需要。分享友人