電流需求量 的英文怎麼說

中文拼音 [diànliúxūqiúliáng]
電流需求量 英文
current demand
  • 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 : 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...
  • 需 : Ⅰ動詞（需要） need; want; require Ⅱ名詞1. （需用的東西） necessaries; needs 2. （姓氏） a surname
  • 求 : Ⅰ動詞1 （請求; 要求） ask; beg; request; entreat; beseech : 求人幫忙 ask sb a favour; ask a favou...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  • 需求量 : gross requirements
  • 需求 : needs; need; demand; requirement
  1. Based on the demand of power department, a full distributed multifuncitional monitoring device is studied. this instrument not only can measure the data of hydroelectric plant, but also integrate the funcition of control the dynamotor, by cooperate with the program of epigynous system, it can realization the auto generate electricity on the hydroelectric plant and ordinal startup - stop of the dynamotor. 2 furthermore, performance of integrated dft arithmetic enhances the acturacy and reliability of measure. by communication several devices can run online to be controlled dispersedly and managed centrally

    本文分析了國內外水電站自動控制裝置的研究和發展狀況，尤其是國內小型水電站的自動化現狀，針對現有電力部門的需求，設計並實現了一種單元式的微機自動監控裝置，該裝置不僅實現了對水電站內各種模擬參數和數字信號的實時監測功能，還對水輪發電機組進行了調控，通過與上位機處理程序的配合，可以實現水電站的自動發電控制、機組順序啟停；在測量發電機組機端電壓和電流參數的時候，採用32點離散傅立葉演算法（ dft ） ，增加了測量的準確性和可靠性；通過通訊可以實現裝置的聯網運行，做到「分散控制、集中管理」 。
  2. With the deveiopment of hydraulic technology, hydraulic system and hydraulicequipment are more complicated, hydraulic technology is more widely and morecomp1icatedly used in agricultural machine and their malfunction is more difficu1t to bedetected. fault diagnosis of hydraulic system is not as apt to be observed as that of themechanical equipmeflt or is not as easy to be detected as that of electric equipmeflt bymu1tipurpose meter or other meters. flux meter gage and pressure gage ca n ' t meet the needof fault diagnosis for hydraulic system because its working medium and workingcomponents are hiding inside the sealed vessel

    隨著液壓技術的發展，液壓系統及液壓設備越來越復雜，液壓技術在農機上的應用也變得廣泛而復雜，農機液壓系統的故障診斷也越來越困難，液壓系統的故障診斷不象機械設備那樣直觀，也不象電氣設備那樣通過萬用表等儀器測得，液壓系統的工作介質和工作部件都在密閉的容腔內，流量計、壓力表等測量儀器遠遠不能滿足故障診斷的需求。
  3. In the paper i investigate the postion & performance & payement of zhejiang thermal power construction company " s human resource, the recombined organization pattern and the demanded human resource quantity & designability during the year 2004 to 2008. all these mentioned above are on the basis of the original and adjusted layout of national electricity corporation, analyzing the intending competition strategy and trend of development of electric power construction industry

    結合國電公司原十五規劃及調整后規劃、分析電力建設行業未來的競爭戰略和發展趨勢的前提下對浙江省火電建設公司的人力資源戰略的崗位管理、績效管理、薪酬管理三個重要組成部分和強調以流程為導向的組織模式重組以及2004年- 2008年期間的人力資源需求總量和結構性需求進行了探討和實現。
  4. Various forms of combining parts of the invention, by which water in multi - stage recirculating water - heating tank for collector and / or multi - stage confluent water - heating tank, as a whole or separately, can be heated by solar energy collector, or a heat pump, or an electrical heater, fall into the following categories : on sunny day, it ' s enough to use the solar energy collector to heat water, then hot water is stored ; in confrontation with off - peak electricity at night, use the heat pump or the electrical heater to heat water, then hot water is stored ; during the time of a cloudy day without off - peak electricity, use the heat pump to instantly heat water according to the storage capacity of predetermined amount of produced hot water, then hot water is stored

    所述的經太陽能集熱器、或熱泵、或電加熱裝置同時或分別對集熱器循環加熱水箱、分級加熱式匯流熱水箱中的水進行分級加熱的組合包括:陽光天可全部採用太陽能集熱器進行加熱和儲存熱水，夜間峰谷電時段可採用熱泵或電加熱裝置進行補充加熱和儲存熱水，無陽光的非峰谷電時段可根據定量的熱水儲量設置需求採用熱泵進行即時加熱和儲存熱水。
  5. Validate system load flow and fault models using instantaneous voltage angles. use system - state measurements to increase stable system loading through reduced margin requirements

    批準電力潮流和故障類型使用瞬時電壓角度.通過縮減利潤需求，使用系統狀態測量以增加穩定的系統負荷
  6. By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion

    由此得出結論，在非線性磁場計算中：採用迭代法的情況下，在各迭代循環之間進行磁導率修正時，一個欠鬆弛迭代過程是必需的；對永磁體中的等效電流修正時可以不作欠鬆弛迭代；在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值，會使得插值求出的磁導率在該磁飽和值附近有一突變，這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中，由於微波管磁路比較復雜，作者認為磁體的工作點並不能很好地反映磁體的工作狀態，而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況；要表示磁系統設計好壞的程度，則用磁能利用的效率為標準更好。
  7. And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion

    論文首先描述了數字電視地面廣播的需求條件，技術難點和目前存在的問題，並重點分析了dvb - t系統結構流程，核心技術及系統通道特性和參數，該系統採用了cofdm （編碼正交頻分多路復用） ，大量導頻信號插入和保護間隔技術等核心技術，使之能抵抗高電平（ 0db ） ，長延時的靜態和動態多徑失真，有利於數字和模擬電視的混合傳輸，它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。
  8. Since high tc superconducting ( hts ) tapes for practical applications became commercially available over the past few years, the development of superconducting power technology has achieved significant progress. it is foreseen that superconducting technology will be the prevailing high technology of the 21st century, and that superconducting power equipment will be commercialized soon, enjoying a large - scale worldwide market before 2010. china ' s economy is expanding fast, and the demand for electricity is increasing quickly. at the same time, higher electricity quality will be required. traditional power technology will no longer be able to satisfy future requirements, so superconducting power technology would be the best solution, leading a revolution in the power industry. the history, present status and prospects of superconducting power technology as well as the economic benefits and basic physics problems involved are reviewed

    人們認為，超導體在電力方面出現大規模應用的時間距離我們還非常遙遠.然而，隨著最近幾年來實用高溫超導材料的研製取得重大的進展，高溫超導電力技術的應用已經成為現實，預期將在2010年左右出現大規模的應用，並將帶來電力工業的革命.因此，下一個10年將是國際超導技術競爭最關鍵的10年.我國的經濟發展很快，電能需求量增加十分迅速，對電能質量的要求也越來越高.常規電力技術已經無法滿足我國電力發展的需要，超導電力技術是實現我國電力發展目標的必由之路.文章有代表性地介紹了超導電纜、超導限流器、超導磁儲能系統、超導變壓器和超導旋轉電機等的基本工作原理及研究發展歷史，並著重介紹高溫超導電力應用研究的現狀、應用前景、經濟可行性及基本物理問題
  9. With the development of power system, on one hand, the capacity of the power system is increasing very rapidly and the system current becomes larger and larger. on the other hand, with the optimization of the administration and allocation of the power energy, the traditional ct can ’ t meet the demand. our company ’ new product ( vsm ) is very urgent to develop a new type of ct to meet such requirement

    現代電力系統的容量在不斷加大，系統電流值不斷增加;並且對電力系統的輸配電自動化要求也越來越高，需對電力系統的運行進行在線監測、實時控制、故障預測、保護、通訊等，傳統的電流互感器越來越難以滿足電力系統的發展，因此，在電力控制保護和監測中起樞紐作用的電流傳感器提出了小型化、高可靠性、智能化的要求。
  10. The boilers are well - structured and bring good benefit for enviroment protection. china is a big country for energy consumption, now, saving energy and enviroment protection have been already put on the importment order of the day. the quantity of the boiler required for the development of industry has been increasing, the annual requirement is about 100, 000steam - tons. recently, it has higher requirment to develop the thermoelectricity combustion production. therefore, 220ton hour circulation fluidized bed will have a good prospective market

    中國是一個能源消耗大國，現已將節約能源和保護環境，提到了重要日程，而工業的發展對鍋爐的需求量還在不斷增大，每年約需10萬蒸噸，且目前對發展熱電聯產有更高的要求，因此，生產220噸時循環流化床鍋爐有較好的市場前景。
  11. With the development of power system, on one hand, the capacity of the power system is increasing very rapidly and the system current becomes larger and larger, so it becomes very difficult for a traditional current transformer ( ct ) to undertake the measurement task. on the other hand, with the optimization of the administration and allocation of the power energy, it is very urgent to develop a new type of ct to meet such requirement

    隨著我國電力系統的不斷發展，一方面，電力系統的容量在不斷加大，系統電流值不斷增加，一次側電流值的測量對傳統的電流互感器越來越困難；另一方面，隨著運行管理和調度向著快速，可靠，自動化方向發展，要求對電力系統的運行進行在線監測和實時控制，對作為一二次側聯絡設備的電流互感器提出了更高的要求，要求設計出一種新型的適應電力系統發展需要的電流互感器。
  12. In the proposed technique the bemf waveform of bldcm need to be measured in advance at first, through computer simulation and frame transformation, the optimum q - axis current command is achieved. in order to minimize the torque ripple, the d and 0 - axis current command should be zero. furthermore, through reference frame transformation from dqo - axis to abc - axis, we can get the optimum current command in static abc reference frame

    在這種控制方法中首先測量出電機的實際反電動勢波形，然後通過計算機擬合和坐標變換，求得產生恆定電磁轉矩所需的q軸電流，令i _ d ~ * = i _ 0 ~ * = 0 ，通過坐標變換，得到三相靜止坐標系a - b - c下的參考電流i _ a ~ * ， i _ b ~ * ， i _ c ~ * ，利用電流滯環控制來產生pwm信號，由於這種控制方法中電流不會突變，從而可以較好的抑制轉矩脈動。
  13. For the bldcm which has a neither sinusoidal nor trapezoidal back - emf, that is, for a general shape back - emf bldcm, this dissertation proposes a novel id = 0 vector control method. by this method, the iq for a constant torque to produce is calculated through coordinate transformation, and the reference iq is tracked by vector control in the dq0 frame

    對于實際反電動勢波形既非正弦又非梯形波的無刷直流電動機，提出一種新型的任意波形反電動勢無刷直流電動機的i _ d = 0矢量控制方法，通過坐標變換浙江大學博士學位佑文摘要求解產生恆定電磁轉矩所需的q軸電流，並在dqo坐標系下通過矢量控制對q軸參考電流進行跟蹤。
  14. Baded on market requirement, jianwei has built up ten odd series of procedures for floor construction, which include the initial common coating, self - leveling floor coating, anti - static floor coating, elastic plyurethane track, tennis court, acrylic tennis court, etc. yabaoli ' s dozens of products show its professional standard and can meet the diverse and individual require - ment of customers

    根據市場的需求，企業在地坪施工方面設計了大量的方案，從最初的普通塗裝，發展到環氧砂漿耐磨地坪、彩色環氧砂漿地坪、自流平地坪、防靜電地坪、彈性聚氨脂跑道、網球場、丙烯酸網球場等十幾個系列，幾十個品種，充分展示了本公司的專業水準，能滿足不同客戶多樣化和個性化的需求。
  15. Power transformer test is simulanted in test - room, try to prove that online measure of transformer test is feasible. the test results are satisfaction. in the end, there is software design : the instrumented - test - interface is developed ; location computer entering to sample state is the same time, and after the same " log time ", it stops the data sample note. every test signal data keeping in the data note memorizer is at the same time, so it realizes data synchronization collection. some blocking design in the process of software design can apply to the other software

    文章的最後，針對變壓器試驗微機測試系統對電流、電壓、功率等變量數據採集的特殊要求，分析了同步誤差的產生原因，給出了同步軟體采樣的無差條件；建立了電壓電流有效值和平均功率測量誤差的數學模型，提供了減小測量誤差的措施；應用「同步軟體采樣技術」 ，不需要增加采樣周期數，不需要硬體同步環節，較好地解決了同步誤差對測量精度的影響。
  16. Aiming at several representative electric - hydraulic control module of the construction machine control system based on the can bus will stand out all the electric - hydraulic control system of the construction machine. based on what we have said above, we design the communication adapter, data acquisition module, data control module and the hydraulic test flat which is controlled by the high - speed switch valve

    針對工程機械幾種典型的電液控制模塊，分析其功能需求，並探討了其實現的控制方式、控制復雜程度和數據傳輸和處理的量，經過縱橫向比選后，認為基於can - bus的數字電液控制系統必將成為下一代工程機械電液控制的主流。
  17. Four network platforms - qq, qq. com, qq game and paipai. com created and their vast communities respectively formed, we have primarily set up a new business layout and industry model - online society. tencents diversified products satisfy users multi - requirements in their daily life, such as qq. com, qq im and foxmail acquired in early of 2005 for transmitting information and obtaining knowledge ; personalized blog, q - zone together with our bbs, chatting room and group discussion function making group communication and sharing resources more easily ; characterized showing and entertainment being satisfied by qq show, qq pet, qq game and qq music radio tv on live, the special wireless value - added service, color ring and message just for those mobile users ; an c2c website, paipai. com being designed and developed for our tencent s users, now it is already combined with other products seamlessly

    在滿足用戶信息傳遞與知識獲取的需求方面，我們有qq . com門戶qq即時通訊工具以及年初收購的foxmail電子郵件滿足用戶群體交流和資源共享的方面，騰訊推出的個人博客qzone將與我們訪問量極大的論壇聊天室qq群相互協同在滿足用戶個性展示和娛樂服務方面，騰訊擁有非常成功的虛擬形象產品qqshow qqpet寵物和qqgame游戲qqmusic radio livetv音樂電臺電視直播產品，另外對手機用戶提供彩鈴彩信等無線增值業務在滿足用戶的交易需求方面，專門為騰訊用戶所設計開發的c2c電子商務平臺拍拍網已經上線，並和整個社區平臺無縫整合。
  18. High quality and high automation and high practicability are the goal of this thesis. this paper is aimed to develop an intelligent management system of residential areas, a combination of measurement and monitoring of water, electricity and gas system, which is safe, reliable and energy saving, in accordance to the requirements of current market in china. it studies real - time data - collection technique and application of the automatic control technique in the intelligent residential areas

    本文通過對住宅小區智能化技術發展，國內外小區智能化產品的應用現狀的了解，以及國內小區住戶、物業管理部門、供水供電供氣專業管理公司對小區智能化產品的需求狀況的調查，提出了集水、電、氣等資源計量及安全監控於一體的住宅群智能管理系統是符合目前國內市場主流需求的小區智能化產品，要求其性能可靠、安全適用、節能經濟的。
  19. With performance of up to 900 million floating - point operations per second ( mflops ) at a clock rate of 150 mhz, tms320c6711 is fit to tackle with the problem. this thesis made a deep research on the h. 263 standard and the tms320c6711. we propose the plan of the software and the hardware for the realization of the h. 263 protocol which include the structure of the whole program, the c code of the key algorithm of the h. 263, the c code of some subprogram, and the circuit for image processing with the tms320c6711 as the processor. furthermore, we optimize some subprogram in common use to make the coding more quickly. we encode a video sequence with the tms320c6711dsk successfully, even if the compression rate is as high as 100, video effect we get after decoding the code stream is satisfying

    首先系統地研究了h . 263協議編碼器的基本演算法，句法，碼流結構和tms320c6711dsk的原理結構以及ccs2 . 0的開發環境；在系統的軟體方面給出了總體流程圖，對于h . 263協議編碼器的某些核心演算法和子程序，給出了部分源代碼，對于dsp的各種代碼優化方法進行了討論，並且對代碼進行優化，從而在提高系統處理速度的同時減少代碼大小和內存需求量；硬體方面以tms320c6711為核心處理器，提出了基於tms320c6711的圖像處理平臺的硬體實現方案，並給出了原理電路圖；最後在tms320c6711dsk上成功對視頻數據進行高壓縮比（ 100倍以上）的編碼，對回傳的結果解碼后得到了令人滿意的效果。
  20. Current transformers are nonreplaceable in the field of protection and measurement for decades, but the electromagnetic current transformers can not meet the development of the electric power system for the reasons of magnetic saturation, ferro resonance, little dynamic range, narrow service band and so on 。 with the popularization of microcompute, it will be irreversible to apply microcompute in the protection and measurement, the equipments do not need the current transformer with high power, so the rogowski coil can apply on the field of protection and measurement

    電流互感器在繼電保護和電流測量中的作用長期以來具有不可替代的地位，但電磁式電流互感器所固有的磁飽和、鐵磁諧振、動態范圍小、使用頻帶窄等都難以滿足電力系統發展的要求。隨著微機的普及，在繼電保護和測量中應用微機已是不可逆轉的潮流，設備已不再需要高功率輸出的電流互感器，因此可以選用rogowski線圈作為低電壓輸出要求的電流測量和繼電保護應用。
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