有功功率計 的英文怎麼說

中文拼音 [yǒugōnggōnglǜjì]
有功功率計 英文
effective power meter
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 功 : 名詞1 （功勞） exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 有功 : have rendered great service; have performed meritorious service
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    作為一家靈活的、有經驗的產品供應商為您提供高質量的測地學，圖符、圖、圖形、圖表，制圖、測圖，制圖，地圖，測量功率，計劃、規劃、意圖、打算、提綱、草案，衛星、行星齒輪，航運、航行，工業機械裝置。
  2. Taking load uncertainties, infeasibility problem and multiple objection of the reactive power optimization in the radial distribution system into consideration, loads are modeled as fuzzy interval numbers. fuzzy power flow is proposed based on fuzzy interval load for the more practical membership function of line losses rate and maximal voltages offset. this thesis presents multiple objection model of the reactive power optimization considering uncertainties using the fuzzy set theory

    對配電網電壓無功優化問題中負荷的非概率性的不確定性問題、多目標問題、約束不可行性問題進行了研究，用模糊區間來描述實際的負荷情況，並用負荷的模糊區間值計算配電網的潮流，得到有功功率損耗和電壓的模糊區間值，使網損率和節點電壓最大偏移量的隸屬函數更接近實際情況；將改進遺傳演算法與模糊集理論相結合，通過求解多目標函數和約束條件的模糊集合的交集，得出網損率和節點電壓最大偏移量最小的最優運行狀態。
  3. The reactive power compensation is an important engineering in the power system. the active reactive power compensator designed in this text takes the instantaneous reactive power theory of three - phase as foundation, and is formed by the reactive current testing circuit, current tracking control circuit and the main circuit, and among them the current tracking control circuit is formed by instruction current arithmetic circuit, current polarity checkout circuit and current tracking control logic circuit three parts in the circuit form

    無功功率補償是電力系統中的一項重要工程，本文所設計的有源無功功率補償器是以三相瞬時無功功率理論為基礎的，它由無功電流檢測電路、電流跟蹤控制電路和主電路三大部分組成，其中電流跟蹤控制電路由指令電流運算電路、電流極性檢測電路和電流跟蹤控制邏輯電路三部分構成。
  4. Lines design method and effective power estimation of craft with round bilge

    圓舭艇線型設計與有效功率估算
  5. 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。
  6. With promulgation and obliging actualization of iec 1000 - 3 - 2 etc. international standards, power factor correction ( pfc ) technique become a hotspot of research in power electronics field. based on average current mode, the paper introduce the design and implementation of a fully digital controlled single - phase boost power factor corrector with fast response. the control - loop circuit is realized using digital control and the corrector can tend to unity power factor, lower current harmonics and high transfer efficiency

    本文在平均電流模式控制的有源功率因數校正技術的基礎上，設計了一種控制電路基於數字信號處理器（ dsp ） 、主電路採用boost變換器拓撲結構的全數字單相功率因數校正器，用數字電路代替傳統的模擬電路來實現對整個迴路的控制，最終使得校正器具有輸入功率因數接近於1 、低電流諧波以及高轉換效率的特性。
  7. A new full - wave measurement circuit structure is put forward that would increase distribution automation system reliability and veracity. the distributed protection and monitoring unit in this paper can instead of general instruments of low voltage distribution system. it not only combines ampere meter, voltage meter, active power meter, reactive power meter and power meter, frequency meter into a meter, but also increases monitoring position switch, control bus switching alternately and monitoring energy

    本文研製的保護和測控單元，可替代低壓配電系統中所使用的常規儀表，將原來迴路需要的電流表、電壓表、有功功率表、無功功率表和功率因數表、頻率表簡化為一塊表，並增加了位置開關量檢測，控制母線投切和電度監測功能，從而極大的簡化了低壓配電二次儀表設計、安裝調試，提高了運行、維護和管理水平。
  8. This unit is particularly designed for monitoring 400v feeder with backup automatic switch. it could accurately measure and calculate : voltage, current, frequency, active power, reactive power, power factor and energy. when bus gets into trouble, it can perform the function of automatic switching to backup power supply

    該單元是特別針對400v饋線備自投而設計的，它具有測量母線的電壓、電流、頻率、有功功率、無功功率、功率因數以及有功電度、無功電度等電參數的功能；當母線出現故障（過壓或欠壓）時，能夠完成兩組母線的自動投切，即備自投的功能。
  9. 4. the double dsp technique is introduced, and the furthermore the traditional fft analysis and nowaday theory of instantaneous reactive power is combined, thus the combined system of shunt passive filters and active power filters is designed

    4 、採用雙dsp晶元技術，將傳統的頻域分析fft計算與現代的瞬時無功功率理論相揉和，進行lc無源濾波器和並聯型有源電力濾波器混合系統的設計。
  10. The algorithm of economic power dispatch, which considers the constraint condition of network loss and frequency variation, is studied, and a pragmatic and effective method of frequency control is put forward, and the marginal cost is analyzed

    本文研究了計及網損和頻率變化率約束條件的有功功率經濟分配的演算法，提出了一種實用有效的頻率控制方法並對邊際成本進行了分析。
  11. A special clamp for etching optical fiber and depositing pd film on the fiber is designed. designed a encapsulation set of the characteristics that is dampproof, shake and eroding resisted. the experimental set - up for hydrogen sensing includes the light source, gas cell, mass flow controller, stainless steel helical tubing and the detector, etc. the experimental results are also discussed

    本文還設計了一套光纖腐蝕用夾具、光纖封裝加熱夾具和一套光纖濺射鍍膜實驗夾具;設計並製作了一套具有防潮、抗震和抗腐蝕功效的光纖傳感頭封裝裝置;設計了一套由激光器、反應混合氣室、光功率計、質子流量計和流量控制器等組成的氫氣定標實驗裝置並對實驗數據進行了分析與處理。
  12. An electrochemical capacitor is new storing energy system between batteries and conventional capacitors. it is intensively used as memory back - up sources for computers and power sources in many fields of electronic and communication equipment because of its high specific power and good cycle life

    電化學電容器是介於電池與傳統電容器之間的一種新型的儲能裝置，由於它具有比功率高、循環性能好的特點，因此可以用作計算機的后備電源、小型電子儀器的功率電源。
  13. As the developing of economy and the progressing of science, microwave power meter has been used to measure output / input of transmitter / receiver ， output of signal generator and output of monofier, it has many uses in national defence, communication and scientific research

    隨著經濟的發展，科技的進步，微波功率計已被廣泛用於測量發射機/接收機的輸出/輸入功率，信號源的輸出，以及振蕩器的輸出等。在國防、通訊、科研等領域有著廣泛的用途。
  14. Furthermore, sampling and processing of ac, including some ac sampling algorithms, are reached. mainly, fft algorithm and full - wave fourier algorithm are discussed. calculation of active power and imaginary power is researched

    同時對模擬量的採集與處理以及一些交流采樣的演算法進行了研究；主要就快速傅里葉變換演算法、全波傅氏演算法以及有功功率、無功功率的計算、濾波的參數選取、諧波的計算進行了討論。
  15. The whole machine is covered by a stainless steel outshell, the surface is clean and delicate, multi homogenic constructions are designed is the working valve, so, under the cirumstance of same homogenic effect, there are such advantages as power - saving and obviously effective. it is suitable for liquid - liauid emulsification manufacturing industry

    產品說明:整臺機器用不銹鋼外殼罩住，外表光潔精緻，在工作閥中設計了多次均質過程的結構，因此在達到同樣均質效果的情況下，具有省功率，效果明顯等優點，適用於制備液-液乳化物的行業。
  16. According to the characteristic of nine - area diagram of substation vol / var coordinated control, this system gives the defination of fuzzy sets and the degree of membership of input / output variables, and designs corresponding control rules. the results of simulation demonstrate the system can satisfy the constrains of the day - adjusting times of the switching of on - load transformer and paralleled compensation capacitors, and ensure voltage quality, reactive power basical balance. considering the var requirement in different load time period and the control demand in load saltation, a improved control scheme is provided. the results of simulation show the improved scheme can meet the demand of vol / var in different load time period, protect the wrong operation when either voltage or reactive power appears saltation, and decrease the times of regulation of the switching of on - load transformer and paralleled compensation capacitors finally, a background software module of substation vol / var coordinated control is designed, based on the supervisory control and data acquisition system of substation

    模擬結果證明該系統能在各種負荷條件下確保電壓合格和無功基本平衡，且能滿足變電站對有載調壓變壓器分接頭日調節次數和並聯補償電容器組的日投切次數的限制。通過考慮不同負荷時段對無功功率的需求和負荷突變情況下的控制要求，對上述模糊控制策略進行了改進，模擬結果證明改進后的控制策略能滿足不同負荷時段對電壓和無功的要求、抑制電壓或無功突變情況下的誤動作，且有效地減少了有載調壓變壓器分接頭和並聯補償電容器組的調節次數。最後基於變電站scada系統設計了一后臺電壓無功綜合控制軟體模塊。
  17. Based on the large disturbance equation and using the measured power angle as an observation argument in an identification algorithm, the electrical parameters and mechanical parameters are obtained. in this thesis, micro - computer testing systems for synchronous generator is analyzed. withmcs - 196 series single chip micro - controller of high price performance ratio, a high precision, intelligent instrument for automated testing has been developed

    設計了同步發電機參數測試儀器，完成了利用發電機定子電壓電流的波形，辨識發電機參數的計算機軟體，該裝置運用鎖相環技術自動跟蹤和獲取電量頻率，進行交流采樣，利用傅立葉演算法求得電量基波的幅值、有效值，從而可獲得三相有功功率、三相無功功率以及功率因數。
  18. Adopt advanced microprocessor carry out smart control and to the simultaneous inputed single phase ac voltage and current signal carry out accurate measurement, through cpu automatic count the single phase ac active power value, reactive power value, which is displied clearly and visually by the high brilliance led digital tube or high resolution light column, uper screen display active power and down screen display reactive power, and can select serial communication function

    採用先進的微處理器進行智能控制，對同時輸入的單相交流電壓與電流信號進行精確測量，經過cpu自動計算出單相交流有功功率值，無功功率值。上屏顯示有功功率下屏顯示無功功率，並可選擇串列通訊功能。
  19. Adopt advanced microprocessor carry out smart control and to the simultaneous inputed three phase ac voltage and current signal carry out accurate measurement, through cpu automatic count the three phase ac active power value, reactive power value, which is displayed clearly and visually by the high brilliance led digital tube or high resolution light column, uper screen display active power and down screen display reactive power, and can select serial communication function

    採用先進的微處理器進行智能控制，對同時輸入的三相交流電壓與電流信號進行精確測量，經過cpu自動計算出三相交流有功功率值，無功功率值。上屏顯示有功功率下屏顯示無功功率，並可選擇串列通訊功能。
  20. The host computer finishes the calculation of active power, reactive power and power factor, inquire fuzzy form of controlling, give and publish the controlling amount

    工控機完成有功功率、無功功率以及功率因數的計算，並查詢模糊控製表，給出控制量。
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