高諧波分析器 的英文怎麼說
中文拼音 [gāoxiébōfēnxīqì]
高諧波分析器
英文
high frequency analyzer- 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...
- 諧 : Ⅰ形容詞1 (和諧) in harmony; in accord; in tune 2 (詼諧) humorous Ⅱ動詞(商量好; 辦妥) come t...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 析 : Ⅰ動詞1. (分開; 散開) divide; separate 2. (分析) analyse; dissect; resolve Ⅱ名詞(姓氏) a surname
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 高諧波 : higher harmonics
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The way of taking one nth out of capacitor ' s the first harmonic capacitive reactance as its nth harmonic impedance is verified whit the data from tang7c. according to the approximately estimating method, the first harmonic impedance of 220kv system is calculated. on the basis of the models, this paper gives the harmonic equivalent circuit of substation and gives the b ( n ) function of the harmonic time n. when the capacitors has different combination, b ( n ) ' s value will also change, with the inputting local measurement data, the paper studies the series and parallel resonance at the substation, and deduces that the reason the capacitor ' s fuse of tang6c is frequently interrupted is that its capacitor current contains a large number of 5th harmonics, and that the reason the discharging pt of tang7c capacitor being exploded is also that the 7th and 9th harmonic currents are amplified
據此,對該站進行了串聯諧振分析和並聯諧振分析,並結合測試數據和有關變電站的運行記錄,指出了導致該站電容器湯6c頻繁燒保險的主要原因是5次諧波電流含量偏高,引起湯7c放電pt爆炸也是因為7次和9次諧波電流被放大。針對這些導致湯陰變電站補償電容器故障的原因,提出了相應的諧波治理措施,包括針對湯6c電容器5次諧波電流含量偏高的原因,提出了停運湯6c電容器或者通過把湯sc電容器的部分容量併入湯6c電容器(湯sc其餘部分停運)以增加湯6c諧波承受能力的措施;針對# 2變低壓側7次和9次諧波電流被放大的現象,提出了在湯7c電容器上加裝一定百分比的串聯電抗器的措施。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。Based on the geophone vibration formula, this paper presents the affective factors to the seismic data from high resolution geophone arrays and its main property specifications, such as natural frequency, damping coefficient, sensitivity, harmonic distortion, and alias
為此,從檢波器的振動方程出發,對高解析度地震檢波器性能指標(如自頻率、阻尼系數、靈敏度、諧波失真、假頻等)以及檢波器組合的連接方式對地震資料品質的影響進行了分析。In accordance with the driving characteristics of ac driving locomotive, the working status of its traction transformer is analysed. the questions that should be considered in the traction transformer design of ac driving locomotive are mentioned. these questions are the large short - circuit impedance of traction winding, higher harmonic current, over - excitation and dc magnetization caused by large variation of the network voltage, etc. some disposal methods are given
針對交流傳動電力機車的傳動特點,對其中的牽引變壓器的工作狀態進行了分析,指出交流傳動電力機車用牽引變壓器設計時需考慮的牽引繞組的短路阻抗大、電流的高次諧波、網壓波動大可能引起的過勵磁以及直流磁化等問題,同時給出了相應的一些解決方法。Some researches about frequency doubling are made, and two methods to improve intensity of second frequency generation are given. we realized q - switched 532 nm laser, by using nd : gdvo4 as laser crystal, using cr4 + : yag as saturable absorber, using ktp as intra - cavity frequency doubling crystal. average power of 109mw, repetition of 40khz, pulse width of 30ns, pulse energy of 2. 6uj, peak power of 91w are obtained
4 .對倍頻理論進行研究和分析:討論兩種提高二次諧波功率密度的方一法;實驗匕在國內首次實現ld端面泵浦nd : gdvo4 / ktp ,用cr4 + : yag作為可飽和吸收片的綠光激光器,腔內倍頻得到了平均功率為109mw 、重復頻率為40khz 、脈寬為3ons 、單脈沖能量為2 . 6閃、峰值功率為glw的調q綠光輸出。Through theoretic reckoning and simulating analyzing, several control strategies for shunt apf were compared and chose ip - iq arithmetic of the instantaneous reactive power theory control strategy as the right scheme to produce the instructing current. based on it, some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage. two topologies of main circuit were compared and chose the three - phase voltage - source converter with a split - capacitor as its main circuit structure
通過理論計算和模擬分析,比較了並聯型apf的幾種控制策略的優點和缺點,從中選擇瞬時無功理論控制策略i _ p - i _ q計算方式為指令電流產生的演算法,並在此基礎上增加了抑制系統諧振和平衡直流側電容電壓的控制;比較了並聯型apf主電路的兩種常見形式,從中選擇了三相電壓型變流器的主電路形式;算出適合該apf的直流側電容和出線電感的參數;設計出能有效消除apf產生的高次諧波的高通濾波器。A virtual cathode oscillator with an axially extracted te10 or te11 mode has been investigated using the pic code. it can emit microwaves axially through an antenna without mode converter or transition waveguide, making the system more simple and compact. the efficiency of this device can be enhanced by employing premodulation cavity, resonant cavity, feedback mechanism, and virtual cathode formed by two electron beams
本文利用物理分析和粒子模擬的方法研究了軸向提取te10 / te11模虛陰極振蕩器,結果表明通過引入預調制腔、諧振腔、反饋端面、雙電子束陰極等結構,可以實現結構相對緊湊、束波轉換效率較高的軸向提取虛陰極振蕩器。Based on the analysis of the paper, we can draw the conclusion that this device has several issues to be solved to put into use, such as low filtering capacity, large bulk and area the device occupies, complexity of connection, and the hazard of ferro - resonance existing when switching without disconnecting the circuit of the step - up transformer
經過分析發現,這種補償方案存在一些問題,如濾波能力低,補償裝置體積大,佔地面積多,接線復雜;並且如果在投切過程中不將升壓變壓器高壓側迴路斷開,存在著發生鐵磁諧振的危險。This paper explicitly describes the optical measurement of the electric parameters in the high - voltage electric power system, and an optic fiber large current sensor based on farady magnetooptic effect and an optic fiber high voltage sensor based on the linear transformation characteristic of led are developed from research on both theory and experiments. by combining the two sensors to form a synchronous system, the task of harmonic analysis, phase demodulation, power and wattless power computation is accomplished, which helps to monitor and control the electric power system
本文詳細論述了電力系統高壓電網電參量的光學測量的一種實現方法,從理論和實驗兩方面研究了基於farady磁光效應的光纖電流傳感器及基於led線性電光轉換特性的光纖電壓傳感器,並聯合兩種傳感器形成了電壓、電流的同步測量系統,實現了諧波分析、鑒相及有功、無功功率的計算,可對電能質量進行監控。According to the mechanism characteristics of the ac motor, with zero - voltage switching technology, the pdm converter mathematical models both the pwm and rectangular wave control mode are given in this paper. and the voltage and current harmonic analysis and the simulation waveforms of the output voltage, current and power are also described respectively
根據交流電機在恆轉矩區和恆功率區的特性,結合零電壓開關技術,分別給出相應的脈寬調制控制( pwm )方式和方波控制方式下的高頻交流脈沖密度調制變頻器的數學模型,電壓和電流的諧波分析以及輸出電壓、電流和功率的模擬波形。Based on the requirement and target of the projects, firstly, pcf bragg grating are investigated theoretically and experimentally. moreover, the effects of filling high refractive index material ( nematic liquid crystal, nlc ) in pcfs on the transmission mechanism and propagation properties are studied by using plane - wave method and finite - element method ( fem ), farther, several novel pcfs are proposed and designed. lastly, we propose and demonstrate a clad - pumped er3 + / yb3 + - codoped fiber laser, which integrate all performances of broad - band tunable wavelength, uniform output power spectrum, high repeat frequency and high average power to together
本論文選題于國家973 、 863以及國家自然科學基金等項目,結合課題的要求和主要目標,在對光子晶體光纖( pcfs )傳輸特性研究的基礎上,首先對光子晶體光纖光柵進行了理論和實驗研究;然後,採用平面波展開法和有限單元法分析了在光纖的空氣孔中填充高折射率液晶對光纖傳導機制和傳輸特性的影響,提出並設計了幾種新型光子晶體光纖;最後,提出並研製成功連續可調諧、輸出功率譜均衡的全光纖化、高功率包層泵浦鉺鐿共摻光纖激光器實驗樣機。Because the harmonics in tangyin substation are primarily from electric traction loads, this paper gives the structures of several main locomotive models and general harmonics they produce. the harmonics produced by electric locomotive have a characteristic that their range and phase are both dispersive. this paper also analyzes the impedance - matching balance transformer ' s structure and harmonics injected into the power system at its primary side, and sums up the characteristics of the harmonics from electric traction loads in the tangyin traction substation
鑒于湯陰變電站的諧波主要來自電力牽引負荷,本文列舉了電力機車幾種主要車型的結構以及它們產生諧波的概況,得出了電力機車的各次諧波電流幅值和相角具有較大分散性的特點。針對湯陰牽引變電站的牽引變壓器,分析了阻抗匹配平衡變壓器的結構及其高壓側注入電網的諧波,推導了有關計算公式。通過理論分析並結合湯牽線的實測諧波數據,歸納了電力牽引負荷注入湯陰變電站的諧波的特點。Apf can achieve dynamic compensation for harmonics and reactive current, and the compensate performance is not affected by the impedance of the electric network, it has advantages as follows, fast response, high controllability and adaptability, etc. analysis is performed to existing main circuit topology, harmful current detecting method and current tracking control of apf in this paper
有源電力濾波器可實現對諧波和無功的動態補償,其補償特性不受系統阻抗的影響,具有響應快、可控性高、自適應性強等優點。本文對現有的有源電力濾波器的各種主電路拓撲、畸變電流檢測和電流跟蹤控制方法進行了分析。Solid - state dye lasers exhibit some attractive features as compared with conventional liquid - dye lasers, such as lack of toxicity and flammability, compactness and low - cost gain medium which, in addition to being an essentially maintenance - free system, make them suitable for applications in field such as medicine, remote sensing and spectroscopy
染料激光器因具有波長調諧范圍寬、輸出功率高、吸收和增益容易控制等優點,在醫療、遙感、光譜分析等領域得到了廣泛應用。與液體染料激光器相比,固態染料激光器結構緊湊、應用簡便、無污染、成本低,因此染料固態化是人們一直以來研究的目標。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。Harmonic analysis can be produced in as little as 10 milliseconds, or measurements may be integrated over more than a day. the user may set any measurement interval, perform synchronous averaging on harmonics, and even perform full spectrum analysis to detect non - harmonic signal content. the system s main processor controls all display, data storage and i o functions, thus allowing each channel to perform its analysis at maximum speed
在每通道雙數字信號處理器結構中,結果形成超快速諧波分析,諧波分析可於至10毫秒產生,或可綜合測量超過一天,用戶可設定任何測量區間,執行諧波同步平均,及進行全頻譜分析從而探測非諧波信號內容,系統的主微處理器控制全部顯示數據儲存與i 0功能,故使各通道可於最高的速度下進行分析Abstract : since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem , an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
文摘:提出壓電諧振濾波器不能很好地濾除高頻諧波的問題,結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率,從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題,提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性,具體分析了改進型雙端固支微梁靜電激勵諧振濾波器,理論推導證實基於雙端固支微梁的各階振型正交的原理,通過適當調整激振電容的間距,雙端固支微梁的高階振動模態受到很好的抑制,因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過Since piezoelectric resonant filter can not effectively prohibit higher - frequency harmonic, the mechanism of this problem has been discussed by means of a specific example which shows that there exists lots of undesirable resonant frequencies of piezoelectric that would let pass undesirable signals. to solve this problem , an ameliorated electrostatic mechanical resonant filter is proposed and a specific case is demonstrated. the example of electrostatic resonant micro - bridge asserts that by adjusting the gap of exciting capacitance the higher - frequency vibrating model of micro - bridge cannot be excited based on orthogonal character of intrinsic vibrating shape of micro - bridge, so that this kind of resonant filter can effectively filter out undesirable higher - frequency harmonic
提出壓電諧振濾波器不能很好地濾除高頻諧波的問題,結合一個具體例子理論推導了壓電諧振濾波器存在許多干擾諧振頻率,從而不能有效濾除一些特定頻率的干擾信號.為了解決這個問題,提出一種改進型的靜電激勵諧振濾波器.為了說明其可行性,具體分析了改進型雙端固支微梁靜電激勵諧振濾波器,理論推導證實基於雙端固支微梁的各階振型正交的原理,通過適當調整激振電容的間距,雙端固支微梁的高階振動模態受到很好的抑制,因此這種諧振濾波器可以有效阻止濾波器中心頻率的高頻諧波的通過It is very important to the electromagnetic simulations. this paper base on the theory and method of electromagnetic calculation and fdtd, associate with the particle simulation technology, develop an algorithm to resolve the problem of the eigenmode analysis of the cold - cavity in practice
本文從分析電磁場計算的基本原理和方法出發,立足於時域有限差分法,結合計算機粒子模擬技術和數值計算原理,開發出一種能夠分析計算高功率微波器件冷腔諧振頻率以及本徵模式的演算法。分享友人