負載功率因數 的英文怎麼說

中文拼音 [zǎigōngyīnshǔ]
負載功率因數 英文
load power factor
  • : Ⅰ名詞1 (負擔) burden; load 2 (虧損) loss 3 (失敗) defeat Ⅱ動詞1 [書面語] (背) carry on th...
  • : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • : 名詞1 (功勞) exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
  • : 率名詞(比值) rate; ratio; proportion
  • : Ⅰ動詞[書面語] (沿襲) follow; carry on Ⅱ介詞1 [書面語] (憑借; 根據) on the basis of; in accord...
  • : 數副詞(屢次) frequently; repeatedly
  • 負載 : [電學] load
  1. The harmonic circulating current balancing is an important factor in the parallel operating control for it makes the units of the system to get. an equal power factor and makes foundation for the system to work stable and reliable

    並聯電源系統的諧波環流均分控制是實現的失真均分,保證各並聯單元的輸出均衡,保證並聯系統穩定可靠工作的一個重要方面。
  2. Under the result of the inverter ' s steady sate study, the limitation limited by two factors : the minimum time of opposing voltage and the ajustive range of power factor can be gained. a qualitative analysis method based on energy decomposing is applied to study the initialized energy

    在討論串並聯逆變器穩態工況的基礎上,從最小反壓時間和調節范圍兩個限制條件,求出允許的穩態運行極限,啟動電路在此極限下能可靠地啟動就足夠了,追求更高的啟動能力沒有實際意義。
  3. This paper describes mainly system functions, measuring methods, circuit design, software program and errors analysis of a new type of measuring instrument. this instrument can measure and monitor electric parameters in single - phase circuits, three - phase ( three - wire or four - wire ) circuits. this system can be applied to electric devices and power plants, transformer substations with harmonic pollution. it can measure current, voltage, power, energy, frequence, power factor etc. it also can detect load quality, phase sequence, alarm, display and print results, as well as detect and dispose negative power

    該儀器適用於含有諧波污染情況下的機電設備現場、發電廠、供電局、企業變電所現場,可用來測量電流、電壓、有、無、視在、有電能、無電能、視在電能以及頻等電參,並具有性質(感性、容性)判別,正、逆相序判別指示能;超限報警能;列印記錄能和檢測及處理能。
  4. Especially when lots of inductive fecilities are applied, the supply capability of electric net will be sharply declined

    相對于發達國家,我國大部分城鄉電網的一直都偏低,特別是大量感性的應用使得電網供電能力大幅下降。
  5. The simulation results show that the power factor and efficiency of lim are much lower than that of rotary induction motor due to end effect and big air gap of lim. end effect force has a great influence on the thrust of lim. the performance of lim can be improved with the proper secondary structure, small air gap, big goodness factor or heavy load

    結果表明:受邊端效應及大氣隙影響,直線感應電機及效較低;運行狀態下的邊端效應力對電機推力有較大影響;設計電機時選用合適的次級材料、減小氣隙、增大品質、增加都可提升電機的輸出性能,通過設計有效的控制演算法可使電機在額定滑差下具有較高的運行效
  6. This text verify the linear regression relation of the power factor, efficiency and rated loading according to the spot data, and proof the linear regression relation is more accurate than other related relation

    本文還根據現場據確定了、效三者之間的線性回歸關系,並證明了線性回歸關系比其他相關關系準確。
  7. The inverted pwm changing electric current the technique is applied in the prototype model. the prototype model was tested and operated on spot, power factor could reach beyond 0. 95, the effect of following modulating voltage was better, the curve of factor of modulated voltage of exchanging systems changed following load rate was linear, the output of wave form was a flat and steady sinusoidal wave

    樣機採用了逆變式pwm變流技術,對其進行了現場測試與試運行,測試結果是電網側的可達0 . 95以上,跟蹤調壓效果良好,變流系統輸出調壓系( k )隨( p )的變化曲線基本滿足直線關系,輸出波形呈平滑穩定的正弦波。
  8. According to the fact that power factor of low voltage power networks is very low in china and field bus technology is developing in the world, in order to enhance power factor of low voltage power networks, on the basis of central transmitting and controlling information among every compensation equipment, the author of this dissertation studies systematically the design principles of power factor dynamic compensation system. based on analyzing structure of control system at present, the author of the dissertation puts forward a distributed completely and multi - layer structure framework based on field bus technology and builds a power factor intelligent dynamic compensation system. the functions of compensation unit, intelligent node, host computer, are presented

    根據目前低壓電網用電負載功率因數偏低和國內外現場總線技術的應用現狀,立足於提高交流電機的,基於將每個補償裝置進行集中監控、信息集中傳遞的思路,本文作者在分析現有的控制系統體系結構的基礎上,提出了基於現場總線技術的全分散式多層控制系統的體系結構,構建了素智能動態補償系統;對補償執行單元子系統、智能節點子系統、上位機子系統三部分進行了能分析。
  9. Aiming at the fact that power factor of low - voltage power equipment is very low in china and application condition of fieldbus technology in the world, based on enhancing power factor of ac motor, lowering losses of the reactive power, improving power quality, therefore, it is of great significance and practical value to research the reactive power compensation by applying the technology of fieldbus, computer and power electronics

    針對目前國內低壓設備用電負載功率因數偏低和國內外現場總線技術的應用現狀,基於提高交流電機的、降低無損耗和改善電能質量,本文綜合運用現場總線技術、計算機技術和電力電子技術對交流電機無補償的有關方面進行了研究,其研究成果具有一定的理論意義和實用價值。
  10. The analysis and study on the dynamic efficiency of pmsm performing under the various loads. the influence of machine ' s parameters on dynamic efficiency and dynamic power factor is studied ; this has significant meaning for design of pmsm applied in the various load fields. the theoretical analysis and fem calculation fo air - gap magnetic field of pmsm is done

    在建立永磁同步電動機dq軸學模型時,考慮了電機的鐵耗和雜散損耗,提高了模擬計算的精度,根據實測的變化情況,對永磁同步電動機的動態性能進行模擬,並研究分析了電機各參量對其動態平均效和動態平均的影響,總結出變化規律。
  11. In order to instantly and real time eliminate harmonic and compensate reactive power, the definition of traditional reactive power, an integral average during a period, which is confined to apply under some circumstances. for example, when the load power varies swiftly, it will lead to can " t compensate reactive power rapidly

    為了實時、快速的補償無和消除諧波,傳統的基於平均值計算出來的,是以一個周期內積分而得出來的平均值,這在某種情況下就限制了它的應用,如系統快速變化時,就不能做到迅速、實時地補償無
  12. The effect on the generator excitation magnetic field is different when the capacity and power factor of load are different, and the effect on the internal impedance voltage drop is different, too

    而不同容量的,以及的不同,對同步發電機勵磁磁場的作用是不同的,對同步發電機的內部阻抗壓降的作用也是不一樣的。
  13. The load is changing when the dynamo is normal. the effect to the dynamo excitation magnetic field is different when the capacity and power factor is different. the intemal anpedance voltage drop is different

    而不同容量的,以及的不同,對同步發電機勵磁磁場的反映作用是不同的,對同步發電機的內部阻抗壓降也是不一樣的。
  14. So the emergence of facts is just for the purpose of solving these problems of power system. as a branch of facts, active power filter ( apf ), a new power and electric equipment, its function is to eliminate load harmonic and compensate system line reactive power, damp system surge of node voltage, decrease power waste of system line

    作為facts的一個重要分支- - - -有源濾波器( apf ) ,是為了解決系統線路無過低以及線路諧波過多,從而出現線路損耗大、電源電壓的瞬態波動過陡等一系列相關問題而產生的一種新型電力電子裝置。
  15. Starting current the meter can work corectly at rated voltage, rated frequency. when load currdnt is large then 0. 4 ib. power facotor : 1. running with no - load the meter use logic circuit to anti - creep

    啟動電流:在額定電壓額定頻為1的條件下,當電流大於0 . 4 ib時電度表都能正常工作。
  16. Abstract : this paper deals with the simulation result analysis of three phase synchronous generator with rectified output with stator y connected, as well as with stator connected. the curves of overlap angle, displacement angle and power factor with load are presented, and the tendency of these curves are also described

    文摘:對整流時凸極同步發電機定子繞組及y聯結模擬結果進行分析,繪出反映整流特性的換流重疊角、位移角以及變化曲線,並對變化趨勢進行分析。
  17. The test shows that the vector control speed system has low inverter power, high power factor, perfect dynamic performance, wide speed range. it suits the variable speed system of fan machine and pump and has good prospect on industry application

    試驗證明調速系統具有變頻器小、高、動態性能好、調速范圍廣等優點,適用於風機、泵類的調速,有良好的工業應用前景。
  18. With the 300mw turbo - generator as an example, the effects of saturation on operational characteristics and the stator and rotor ' s practical dimensions and configuration on the saturated characteristics have been studied ; some work on the grid division strategy considering the practical dimensions and configuration and the precision of the nonlinear finite element equation also has been studied. then the program for calculating and analyzing turbo - generaors " steady characteristics has been compiled and devised

    本文在系統地研究了汽輪發電機運行特性(飽和特性、短路特性、零特性和u形曲線) 、非線性有限元方程計算精度、定轉子實際結構對飽和特性的影響及計及定轉子實際結構時的剖分策略等問題之後,進一步研究開發了適于不同型號汽輪發電機穩態分析的通用性有限元軟體。
  19. Study of load characteristic and power factor enhance for pump oil machine

    抽油機的特性及提高措施的研究
  20. As the object of the task, ups inverted by igbt with constant current adjusting and high power factor ( abbreviated to ups with constant current ) is known from others by : 1, high power factor as to the power system 2, constant current output at different level according to the demand ( from zero load to rating load )

    作為本課題的主體,高恆流調光igbt逆變ups (以下簡稱恆流ups )具有其區別于普通ups的獨特之處: 1 、實現電網側的高2 、電源輸出為分級恆流(從零到額定) 。
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