補償電壓 的英文怎麼說
中文拼音 [bǔchángdiànyā]
補償電壓
英文
bucking potential- 補 : Ⅰ動詞1 (修理; 修補) repair; mend; patch 2 (補充; 補足;填補) fill up; add supplement; supply; ...
- 償 : 動詞1. (歸還; 抵補) repay; compensate for 2. (滿足) meet; fulfil
- 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...
- 壓 : 壓構詞成分。
- 補償 : compensate; make up; make up for; make it up to sb. ; make sth. good; compensation; offset
- 電壓 : voltage; electric tension; electric voltage
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The electromagnetic unit is composed of medium - voltage transformer, compensation reactor, damper etc., the casing is filled with insulation oil
電磁單元由中壓變壓器、補償電抗器、阻尼器等器件組成,箱體內充絕緣油。Exchange non - clearane metal oxidate matter arrester is suitabe for the voltage protection of transformer switch cupboard, vacuum switch etc
交流無間隙金屬氧化物避雷器,適用於變壓器、配電屏、開關櫃、真空開關、輸電線路、電力計量箱、並聯補償電容器、旋轉電機等電壓保護。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。After which, the battery will be charged by large constant current to allow the fast charging. finally, the constant voltage charging is adopted to guarantee the battery was charged to its full capacity. under the condition that the temperature has raised to a certain threshold at the constant current charging stage, the over temperature circuit is performing and it provides a compensation current which switches the system to constant temperature charging mode with the intention of protecting the ic
即在充電初期採用較小的電流對電池進行預處理,對出現過放電的電池進行修復和保護;然後採用較大的恆定電流對電池充電,實現快速充電的目的;最後採用恆定壓充電,確保電池充滿;在恆流充電階段,當晶元溫度上升到一定程度時,晶元過熱保護電路開始工作,該電路以提供充電補償電流的形式使充電進入恆溫充電模式,對晶元進行保護。Second, the results of theory analysis and simulation research show that the output of one cycle controlled bridge switching power amplifier have dc offset because of the nonideal characteristic of reset signal. the magnitude of output dc offset voltage is proportional to width of reset pulse. a voltage compensation technique is used to solve this question, and the computation formula of compensation voltage is gived. the circuit compensated and not are researched through simulation and experiment, which results show that compensated circuit solve the output dc offset effectively
其次,理論分析和模擬研究結果表明,由於復位脈沖的非理想特性,單周控制的全橋開關功率放大器輸出端存在直流偏置問題,其大小與復位脈沖的寬度成正比。針對輸出直流偏置問題,提出了電壓補償的改進方案,給出了補償電壓的具體計算公式。對補償前和補償后的方案進行了對比模擬研究和實驗研究。In the part of the transmitter, the pre - amplifier logarithmic amplifier, temperature complement circuit, anti - disturbing circuit, and v / i circuit, are discussed. the transmitter outputs 4 - 20ma. in the part of the displayer hardware design, the i / v convert circuit and the flame intensity signal processing circuit are introduced
在探頭的設計中,詳細介紹了前置對數放大器電路設計,在對數放大器加入了溫度補償電路和抗干擾電路,以保證測量精度和較大的量程,最後信號經電壓電流的轉換,得到4 - 20ma的標準信號作為探頭的輸出信號,進行遠傳。With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly
四川電網的二灘水電站和500kv輸變電系統投入運行后,由於二灘水電站的大量電力遠距離輸送至負荷中心,迫使負荷中心的火電機組在豐水期大量停機,使負荷中心失去電壓支撐,大大降低了電網的電壓穩定水平;同時,因為四川電網中的無功補償裝置全為靜態無功補償電容器(或電抗器) ,這些設備只能在系統正常運行狀態下起到無功補償和電壓支撐的作用,而在電網出現事故時,不但不能起到電壓支撐作用,反而會促使電網電壓崩潰事故的發生。The key items include the car sinking, constant speed characteristics, inspection function, auto relevelling function and level accuracy, etc. the research contents focus on the following three parts : firstly, research on effects of system parameters on car sinking has been completed. secondly, the constant speed performance with the compensation of internal leakage of pump / motor is improved. lastly, research on improvement of the car level accuracy and contrast to that of traction elevators is presented, and the reasons of low car level accuracy of hydraulic elevators are discussed
重點研究了三方面內容:一是研究了停層沉降特性及影響電梯轎廂停層沉降特性的各種因素;其次是通過負載壓力補償液壓泵馬達內泄漏來改善電梯轎廂速度穩定性;最後是液壓電梯平層精度的理論和實驗研究,並與曳引電梯的理論模型進行了對比,闡述了液壓電梯平層精度低的原因,理論探討了影響液壓電梯平層精度的主要因素。On the base of widely investigating and researching, author deems that the conventional reactive power compensation devices used by consumer had many defects with among others : lower response time, remaining residual voltage on the compensation capacitors, and so on. because of existing improper trigging time, it is impossible to realizing balance compensation for 3 - phrase unbalance loads
本文在充分調研的基礎上,認為目前採用的傳統的無功功率補償裝置存在響應速度慢、觸發時刻不合適、補償電容器上有殘壓、不能實行三相平衡補償、對電網產生污染、不能消除負荷本身產生的高次諧波等弊病。First the paper use the different four network operating condition as the primary given conditions and set the 330 / 220kv transformer tap changer position in the standard position, adding the paralleled capacitor bank sets one by one into the network to change the amount of the input reactive power, thus obtained four sets of the 330kv and 220kv bus voltage and the active and reactive power losses changing curves
進而研究了在每一確定並聯補償電容器組投入量條件下,隨聯變調壓檔位變化而產生出的一組並聯補償量、母線電壓與損耗的變化曲線。進而選出了隴南電網在四種選定電網運行方式下、有功損耗最小條件下的最優綜合控制組合曲線。Then the paper uses the same typical four network operating conditions as the primary given conditions and when adding one set of the parallel capacitor bank, changing the 330 / 220kv transformer tap changer position step by step to change the transformer ration, through this study methods this paper found out all the optimized combination of the tap changer position and the amount of input reactive power, also obtained four sets of the 330kv, 220kv and hokv s / s bus voltage and the active and reactive power losses changing curves. through analyzing the optimized combination control curve and the network power flow, the paper generalizes the rules as following : the chief measure of coordinative control is inputting shunt reactor in chengxian s / s in winter time both in the planning year of 2010 & 2005 ; in summer time in planning year of 2010 the chief measure is to input proper shunt capacitor
本研究通過分析所獲得的最優綜合控制組合曲線及電網潮流,總結出了如下規則:隴南電網在2005年及2010年冬大、以及2005年夏小運行方式下,綜合控制應以成縣變投入適量並聯補償電抗器作為主要措施;在2010年夏小運行方式下則投入適量並聯補償電容器作為主要措施,再輔助以選擇合適的主變有載調壓分接頭來調節,達到控制網內無功潮流分佈合理、各變電站母線電壓在理想的范圍內時電網有功損耗最小,從而也提高了電網安全運行水平及供電質量。With the consideration of most of our transformers " taps are changed manually and some fluctuate unnecessarily, this paper presents a supervision system of oltc based on plc control technique. then we combine this system with reactive power compensate device such as shunt capacitor to design a new supervision system of substation voltage and reactive power synthetic control based on plc fieldbus
針對國內變電站電壓調整大多依靠人工調節,且有載調壓變壓器( oltc )分接頭動作頻繁的特點,本文提出了基於plc控制技術的有載調壓監控系統的研製方法,並以此監控系統為基礎,結合併聯補償電容器組等無功補償設備,設計了一種基於plc現場總線的變電站電壓無功監控系統。The main contents to be studied and solved are shown as follows : designing scheme of the error compensation system, studying and designing the signal conditioning circuit, designing the data - acquisition circuit, designing and realizing the max1457 software development system. the compensating circuit is designed in virtue of the signal conditioning chip max1457 as its core. the data - acquisition circuit is designed in virtue
硬體方面,根據總體方案設計了以信號調理晶元max1457為核心的補償電路;以max1401為核心的數據採集電路,用來採集傳感器的電橋電壓和max1457輸出電壓;設計了max1457電源電路, max1457的電源電壓是失調dac和靈敏度dac的參考電壓,採用了ad586給max1457提供精密5v電源電壓。Dynamic voltage restorer ( dvr ) is an important member of custom power family. it can compensate voltage harmonic, fliker, sag, swell, unbalance, and has the advantage of high performance / price, so it is necessary to investigate the theory and operation of dvr
動態電壓恢復器( dynamicvoltagerestorer ? dvr )是custompower家族的一個重要成員,它可以補償電壓的跌落、突升以及諧波,具有高性價比的優點。According to zero sequence voltage distribution from system zero sequence impedance to shunt reactor zero sequence in zero sequence circuit, the zero sequence voltage at the terminal of shunt reactor and the zero sequence compensating voltage at neutral are compared in the scheme
即根據零序網路中零序電壓在系統零序阻抗和電抗器零序阻抗上的分佈情況,通過直接比較電抗器首端零序電壓與補償到電抗器末端中性點的零序補償電壓的幅值大小,來判別電抗器匝間故障。A deadbeat controller is utilized in the stationary frame, eliminating the machine back electro motion force with an assumption that it is a constant in one sampling interval
通過差分消去電機模型中的反電動勢,利用補償電壓進一步消除電流誤差。After getting the experiment data, the resistance value and the deviation value of compensation voltage can be calculated by the two algorithms which can be realized by vb program language and math software such as matlab and maple
得到採集數據以後,通過vb編程語言, matlab和maple數學計算軟體編程,利用最小二乘法和最佳一致逼近演算法,計算出補償網路的電阻參數和補償電壓的擬合差值。At first, it describes structure of the full - length prototype, manufacturing craft and prepare to work, including sting, sealing, wire tension and leak current measurement, mounting of the preamp, gas system, high voltage system, reduction of noise and so on. the construction of full - length prototype provided valuable experience and important reference to the besiii drift chamber. then good function of the full - length prototype was performed using 55fe 5. 9kev x _ ray source. we can see that the uniformity of gas gain of the full - length prototype is well and it is effective for the compensation voltage to adjust the uniformity of gas gain of the boundary cells
為了初步測試模型的性能用55fe5 . 9kevx射線進行了氣體增益的均勻性檢測,隨之用55fe5 . 5kevx射線初步測試了模型性能,對部分高壓和補償電壓的設置進行了調整,驗證了對邊界場絲層加補償電壓能夠有效地調節邊緣層氣體增益的均勻性,實驗結果表明全長模型能正常工作並具有良好的性能。Among them unified power quality controller ( upqc ) is a better set, which can compensate voltage 、 current and promote power quality
統一電能質量控制器( unifiedpowerqualitycontroller ,簡寫為upqc )則是其中一種能夠綜合補償電壓、電流,改善電能質量的裝置。Abstract : the basic operational principle of the series active power filter, when compensating the voltage type load, is analyzed through its system configuration
文摘:通過所給出的串聯型有源電力濾波器系統結構,分析了其補償電壓型負載的工作原理。分享友人