電力定量器 的英文怎麼說

中文拼音 [diànlìdìngliángqì]
電力定量器 英文
instrument for electric load control
  • 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...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 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
  • 電力 : [電學] power; electric power電力變阻器 power rheostat; 電力捕魚 electrofishing; 電力潮流 directio...
  1. 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。
  2. Auto fatness measuring system, fat measure, hearing aid. gas pressure gauge of measure, digital woman thermometer, electronic infrared high - power massager, eye massager, suction unit, refractor, film box. diagnostic set, head mirror. magnetic acupuncture suction cup

    全自動身高體重計、體脂肪測定器、助聽器、氧氣流量表、電子體溫計、電子婦女基礎體溫計、紅外線電動按摩器、眼部按摩器、吸引機、視力檢查器、看片箱、喉頭鏡、檢耳鏡、額頭反射鏡、哈慈五行針
  3. Di - on electric one of the beijing hi - new - tech enterprise develop and manufacture lots of equipment like sf6 dewpoint meter dp100, cable fault location system cfl6000 and more. di - on electric supply the most advanced technology and equipment on such as gis surge arrestor on line monitoring, resistance measuring, ac dc metrology, thermal - temperature bridge, power transformer diagnostic and testing, cable diagnostic and fault location, sf6and oil moisture measuring, oil treatment and testing, optic fiber temperature monitoring, circuit breaker testing, relay testing and more

    迪揚電氣在gis和避雷器的帶電測試與故障診斷分析，電力電纜的故障定位與局放檢測，變壓器電抗器的各種測試診斷與溫度監測， sf6的水分測量與回收，絕緣油的測試分析與濾油處理，紅外測溫與光纖在線測溫，以及各種電阻測試與計量，溫度計量與電能計量等方面擁有世界一流的技術與成熟的儀器設備。
  4. Because the pt secondary loop voltage drop directly affects the accuracy of the electric energy measurement. after consulting a great amount of materials, the best method to reduce the pt secondary loop voltage drop was put forward based on analyzing the cause of which

    由於電壓互感器二次迴路壓降直接影響電能量計量的準確性，嚴重時會危及電力系統的穩定運行，因此本文從分析電壓互感器二次壓降的形成機理入手，並提出最為合理的二次壓降治理方案。
  5. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  6. Conventional power system stabilizer ( cpss ) has such shortcoming as complex design, fussy parameter testing, poor adaptability and so on. in this article formula fuzzy control algorithm is put into the design of pss. quantified factors and modifying factors, which have large effect on the performance of formula fpss, are optimized

    本文針對傳統電力系統穩定器（ cpss ）設計復雜、參數調試繁瑣、適應性差等缺點，將一種公式型模糊控制演算法應用於pss設計，並對公式型模糊電力系統穩定器的性能影響較大的量化因子和修正因子進行優化，從而設計出一種自尋優模糊電力系統穩定器（ sofpss ） 。
  7. 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。
  8. The principle and the mechanical structure of the air - gap inductance - type transducer are analyzed in this article, and the static parameters are calibrated. dynamic calibration is applied to air - gap inductance - type transducer which is not good in dynamic capability, to obtain the dynamic parameters of the transducer and its measuring circuit. based on the result of the dynamic calibration, the transducer and its serving circuit are modeled so that the method of how to improve the dynamic performance can be found

    本文對現有氣隙式電感傳感器在原理和機械結構上作了深入的分析，對其參數進行了靜態標定；並且針對常規電感傳感器動態響應低，不宜用於快速動態測量的缺點，引入測試系統動力學的思想，設計了一套動態校準系統，對現有傳感器進行多次動態校準，根據動態校準的實驗結果對現有傳感器建立數學模型，得到現有傳感器的動態特性；在此基礎上，根據磨床工件在線檢測的要求，設計一個硬體補償系統來提高整個測試系統的動態特性。
  9. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  10. So choose parameter of damping device with reduce energy storage to improve cvt become and respond effective way of characteristic wink rational, this increases the capacity of sending for raising the dynamic stability of the supervoltage power transmission and transformation system, guarantee power system safe and reliable to run and have important technology economic meanings

    因此，合理地選擇阻尼器的參數以降低儲能是改善cvt瞬變響應特性的有效途徑，這對于提高超高壓輸變電系統的動態穩定性，增大輸送容量，保證電力系統安全可靠運行具有重要的技術經濟意義。
  11. The optical structure on solenoid collecting magnetic field is designed applying the above principle, which can improve the stability of aoct greatly. according to iec660044 - 8, the performance of aoct is examined roundly applying the standard testing system authenticated by the state authority. the results indicate that the measurement precision of the aoct has already reached 0. 2 class

    以iec660044 - 8標準為依據，以通過了國家權威檢測部門鑒定的標準檢測系統華北電力大學博士學位論文摘要為測試平臺，全面地對所研製的自適應光學電流互感器的測量性能進行了檢測，檢測結果證明了自適應光學電流互感器已經達到了0 . 2級的測量水平。
  12. The first, in this article analyzed the development of the hydraulic spring operating mechanism and based on the theory of energy and liquid, founded the athletics equation in the case of no load. so it was certainly to know the fluence of the data which come from the mechanism

    本文首先總結分析了當今電力市場上極為走俏的彈簧液壓機構發展歷史和工作原理，然後根據能量守恆定律和貝努利方程，建立了選用彈簧液壓機構的壓氣式開關在空載情況下的機械運動方程式，分析了彈簧液壓機構各有關參數對斷路器分、合閘過程的影響。
  13. Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly

    但是高性能的交流調速系統實現很困難，這是因為交流電機是多變量、強耦合的非線性系統，不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題，其基本思路? ?應用坐標變換將三相等效為二相，實現定子勵磁電流分量與轉矩電流分量之間的解耦，達到對交流電機磁鏈與電流分別控制的目的，交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步，計算機技術飛躍發展，高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中，促進矢量控制迅猛發展，日趨成熟。
  14. The reactive power optimization compensation is to find the suitable compensation place and the best compensation capacitance by adjusting the generator bus voltages, transform taps and reactive compensation capacities in the condition of satisfying power load requirement, which can guarantee the secure and high quality power for consumers. the improved genetic algorithm is applied in this thesis according to the features of reactive power optimization of high voltage transmission bus, which are the non - linear problems with multi - variables and multi - restrictions

    電網無功優化補償是在有功潮流調度給定的情況下，以負荷節點電壓和線路輸送無功功率作為狀態變量，運用優化演算法，調節發電機節點電壓、變壓器可調分接頭和無功補償裝置，在滿足電力負荷的要求下，尋求合理的無功補償點和最佳補償容量，保證電網能夠安全、優質地向用戶供電。
  15. In order to ensure the whole system operate economically, power department equip transformer with onload tap changer and shunt capacitors for most distribution substations, according to the operating condition, adjusting the position of transformer taps and capacitors can control the variation of voltage and reactive power exchanger of distribution substations and power system in certain extent

    為確保整個系統運行經濟性，降低網損，電力部門在大多數變電站配置了有載調壓變壓器和並聯補償電容器組，根據運行情況適當調節變壓器分接頭的位置和投切並聯補償電容器組，可以降低電壓變化和變電站與系統的無功交換控制在一定的范圍內，確保供電質量和電網運行的經濟性。
  16. Air filtration portfolio, air filters, valve, oil mist machine, filter valve, oil mist separator, micro - mist separator, stability activated solenoid valve, pressure gauge, micro - valve and vacuum valves, links the release of the closure - pressure valves, and pipe connection, a one - way valve, t - shelves, shelves, brackets, diaphragm - type flow switches, blades type flow switches, further growth actuator, the valve lock, precision valve, pressure switches, mechanical pressure switches, pneumatic control ratio positioning devices, and electric - gas ratio positioning devices, and telecommunications - pressure converters, electro - pneumatic proportional valve, filter valve, shuttle valve, gas - electric relay and gas indicator, delay pneumatic valve and cylinder fcl, plumbing fcl, mufflers and exhaust cleaner, the excess flow valve with silencer, a one - way valve, rapid valve, rapid joints, rapid valve with fcl, rapid joint sub - cluster gas, micro joints, gas pipes, pipe from the devices, and helical coils, pipes, channels, scissors, multiple fastener, high - speed rotary joint, 10000 threaded joints, and insert the tube joints, rotary joints began, 68. 25 rapid joints and hoses, hose fittings and rapid non - electrostatic

    空氣過濾組合空氣過濾器減壓閥油霧器過濾減壓閥油霧分離器微霧分離器穩定啟動電磁閥壓力表微型減壓閥減壓氣閥三通釋放式截流閥壓力開關管接頭單向閥t型隔板隔板托架膜片型流量開關漿葉型流量開關增速繼動器鎖定閥精密減壓閥壓力開關機械式壓力開關氣控比例定位器電-氣比例定位器電訊號-氣壓轉換器電-氣比例閥過濾減壓閥梭動閥氣-電繼電器氣源指示器氣動延時閥氣缸限流器管道限流器消聲器排氣潔凈器限流閥帶消聲器單向止回閥快速排氣閥快速接頭快速排氣閥帶限流器快速接頭集束分氣微型接頭氣喉管喉管脫離器螺旋管排管管道剪刀多管扣件高速旋轉接頭萬用螺紋接頭插入式管接頭旋式緊鎖接頭難燃性快速接頭和軟管不帶靜電快速接頭和軟管
  17. Under different load, when we apply this software to any time, region and cooling way, we can get the hottest spot increment and aging rating. to manufactory, the software means sounder thermal design, which will meet the load, putted forward by user, while to user, the software equal to a master who can help them decide the capacity rating of the transformer, which will fit the load. by using the software, the potential danger and the waste, caused by unfit load choice may be avoided

    研究開發了計算乾式電力變壓器負載能力的計算軟體，可對于各種絕緣結構，各種冷卻方式和任一地區、任一時間下運行的變壓器在不同運行載荷下的最熱點溫升絕緣老化率進行分析和計算，同時利用該軟體製造廠可以依據用戶提出的運行負載量給出相應的熱設計方案，用戶可根據運行負載情況利用軟體計算所需變壓器的額定容量，避免額定容量選擇不當造成隱患和浪費。
  18. Prosprosing a tansformer winding model to judge whether the transformer has come into bing interturn short circuit and the degree of interturn short circuit, and providing an availability for condition monitoring of transformer that improves the accuracy of condition monitoring and fault diagnosis. 3. the accuracy and invalidity of diagnosis of fault positions and fault characters of power transformer would be improved greately if reasoning and analyzing the operation records and oringnal datums of transformer

    建立變壓器繞組狀態監測和故障診斷的模型，通過對繞組在線監測判斷繞組是否發生了匝簡短路、具體哪一相發生匝間短路以及匝間短路的嚴重程度，為變壓器狀態監測提供了有效的狀態監測量，實現了變壓器故障的局部定位，有效地提高了電力變壓器故障診斷的準確性。
  19. This thesis disusses the current states and the matter of the transformer condition monitoring and diagnosis fault. afer analying that dga can only reflect the fault type but ca n ' t confirm the fault location, part - discharging signal can realize fault location in theory but ca n ' t be carried out easily for the inconstant influence of circumstance, we present a method that conbinates the oli - gas and electric quanlities to monitor the transformer. using on - line monitoring of oli - gas conform the fault type. using on - line electric quanlities confirm the fault location. with this method, a fault diagnosis system and corresponding diangnosis flow are proprosed. the main work of this thesis consists of the following parts : 1

    本文主要研究了電力變壓器狀態監測與故障診斷的現狀以及存在的問題，針對目前dga （油中溶解氣體色譜分析法）只能定性分析變壓器的故障，不能進行故障定位，而局部放電雖然能夠進行故障定位，但由於現場的干擾復雜多變，難以提取有效的局部放電信號，從而提出了結合油氣量和電氣量兩個方面對變壓器進行狀態監測。通過油氣量在線監測，判斷其故障類型和性質；通過電氣量在線監測，對變壓器的關鍵部件? ?繞組實現故障定位。
  20. In the paper, the relationships are introduced between gases category, and content dissolved in transformer oil and the destroy degree and fault style. the author have a deep research on the method of grey clustering, and classify together about consanguineous samples when giving attention to the sample characteristics " complexity and illegibility, so the system can realize expectant aims on the bases of lesser information. the analysis of instances testifies that the implement of theory of grey clustering on fault diagnosis in transformer is effective and the calculation is convenient

    針對目前電力變壓器故障診斷方法的現狀，特別是對結構復雜的大型電力變壓器等電氣設備的故障診斷，首要的問題是如何根據反映變壓器故障特徵量指標來正確判斷待診設備是哪一類故障，作者對灰色聚類方法原理進行詳細分析，在兼顧樣品特徵的復雜性和模糊性的基礎上，依據樣本一定的特徵因素，使兩樣本間關系比較密切、相似程度比較大的同屬一類，把一個不甚明確的整體信息不足的灰色系統盡可能地淡化、白化、量化、優化和模型化，以便能依據較少信息實現預期的目的。
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