降壓發電機 的英文怎麼說

中文拼音 [jiàngyāfādiànjī]
降壓發電機 英文
dropping voltage generator
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 壓 : 壓構詞成分。
  • 發 : 名詞（頭發） hair
  • 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...
  • 機 : machineengine
  1. This design absorbed the goods of traditional electric driven screw elevatory stages. lt followed the mechanical - electrical - hydraulic combined idea to analyze the key technic of the total mechanism. the history facts of elevatory stage were discussed. features of various stages were compared ; the developing trends of it and the utilization of hydraulic driving system were discussed

    文中介紹了升降舞臺的歷史與現狀，詳細分析和比較了升降舞臺的各種傳動方式及其優缺點，探討了升降舞臺的發展方向與趨勢，闡述了機電液一體化技術在舞臺機械領域的應用前景，以及採用液壓傳動驅動升降舞臺的可行性與實用性。
  2. Finally, because high - speed power solenoid valve is one of the most important executive parts in the electronic control diesel engine and the performances of diesel engine are strongly related to the solenoid valve, the response performance of the solenoid valve is investigated. the response performance of the solenoid is influenced by many factors, such as driving voltage, electric driving unit etc. in order to have high excitation voltage and in low maintaining voltage, a high - low voltage electric driving unit is designed, and in order to make the solenoid valve close more rapidly, an active free - wheeling circuit and a bootstrapping circuit are designed in the electric driving unit, too. in the high - low electric driving unit, high voltage and low voltage are supplied by the dc - dc device and by the accumulator respectively

    高速強力電磁閥的響應性能除了與閥本身的結構和材料有關外，與驅動電壓、驅動電路的設計密切相關，本文通過分析，首先開發出一種高低壓驅動電路，高壓電源是山升壓式dc - dc原理獲取的，低壓由蓄電池本身提供，實現高壓強激和低壓維持的功能，電路中採用有源續流電柴汕機中卜軌知介系統的設訓及其七川j敝略的叭究路進行續流，加誣了電磁閥的關閉速度；採用自舉吐路，降低了場效應管對驅動電壓的要求。
  3. But there is a main question that pvdf does not be in p phase with higher piezoelectric property, but be in other phases with lower or without piezoelectric property, thus, which can not improve distinctly piezoelectric constant d33, reduce notably dielectric spoilage ( tg5 ) and raise remarkably mechanical coupling factor ( kp ) of 0 - 3 pzt / pvdf piezoelectric composite, so these will restrict its development and application. in this paper, 0 - 3 pzt / pvdf piezoelectric composite will be prepared by room pressing - solidity, high - temperature - pressing and room - pressing techniques respectively

    由於這個壓電復合材料體系存在一個主要問題? pvdf在0 ? 3型pzt / pvdf壓電復合材料中通常不是以具有較強壓電性的相晶態形式呈現，多是以其它的相態存在，不能有效地提高0 ? 3型pzt / pvdf壓電復合材料的壓電常數d _ （ 33 ） 、降低介電損耗tg和增大機電耦合系數kp等壓電和介電性能，從而嚴重地制約它的發展和應用。
  4. Finally, we can not use electric power but the engine of bus or subsidiary engine to drive air compressors of bus air conditions. because the change range of turnaround speed of engine is very wide, that brings difficulties in controlling the rate of flow of cold - producing medium. in the control of bus air - conditions, preventing evaporator from freezing to make the air - conditions work with high efficiency and controlling the temperature of railway carriage are the basic tasks in air - condition control

    與一般的建築空調相比，汽車空調的工作環境惡劣，條件差，控制難度要增加很多，主要體現在以下幾個方面：一是車外熱負荷變化大，難以確定控制參數；二是要求空調負荷大，而且要控制空調使其降溫迅速：三，不便於用電力作為動力源，必須用汽車發動機或輔助發動機來帶動壓縮機，當採用汽車發動機作為動力源時，由於汽車的車速變化大，發動機轉速的變化可從600r min到4000r min ，壓縮機轉速與發動機轉速成正比，其轉速變化高達7倍，給空調系統製冷劑流量控制帶來困難。
  5. 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。
  6. Measuring engine transient process data in ca1258p1k2l11t1 truck in accelerated mode, recording and analyzing the data, then analysis the test error. 4. building model and simulating two typical running mode ? fixed 6th gear acceleration with initial vehicle speed 40km / h and gear change acceleration starting with 2nd gear, comparing calculated result with test result, revising transient process simulation model and analyzing error between calculation

    本文基於ca1258p1k2l11t1載重卡車對ca6df2 - 26發動機的瞬變工況進行試驗和模擬計算，結果表明: 1 ） gt - power軟體可以很好的模擬、分析、預測發動機瞬變過程，模擬計算的結果與試驗結果很接近，試驗證明，預測分析指出的改進方向是正確的; 2 ）加裝電動增壓器可以降低整車使用油耗，改善低速煙度排放，縮短加速時間，改善整車的加速響應; 3 ） gt - power軟體預測分析配合發動機和整車試驗是分析、解決發動機瞬變過程的有力工具。
  7. The result of the study shows that the electro - hydraulic proportional technology is useful for all - hydraulic operated drilling machine to simplify the operations and composition of system, to improve the level of automatization and efficiency and to reduce the consumption of energy. the result of the study also shows that the system of feeding has the properties as followed : fast respone, stable pressure - adjusted characteristic, distinct effect of energy - saving, some improvement of system efficiency

    研究結果表明：全液壓鉆機中應用電液比例技術，可以簡化系統組成和操作，提高鉆機自動化水平，提高系統效率，降低發熱和溫升；採用恆壓變量泵的給進加壓電液比例控制系統調壓性能穩定、響應快、節能效果明顯。
  8. Powerformer is a new high voltage generator ， which use xlpe cable as stator winding instead of rectangular conductor bars ， thereby it overcome the shortcomings which the shape of these conductors results in an uneven electric field distribution with high electric field strenghs at the corners especially and prevents the output voltage of the conventional generator from exceeding about 36kv powerformer offers a direct connection to the network without the need for a step - up transformer as a consequence, there are some merits in the total plant equipped with powerformer, such as high effiency, high availability, low maintaining cost and giving less environmental impact

    Powerformer是一種新型的高壓發電機，它採用電纜代替矩形導體作為定子繞組，從而克服了矩形導體電場分佈不均勻，特別是在矩形導體在導體拐角處電場過于集中而使常規發電機的輸出電壓等級不能高於36kv的缺點，使其能夠直接和輸配電網相聯，這樣就不需要升壓變壓器，同時也使裝配powerformer的電廠具有如下優點高效率、可利用率提高、維修費用降低和降低了對環境的負面影響。
  9. Voltage dip voltage dip is the dip in voltage that results when a load is added, occurring before the regulator can correct it, or resulting from the functioning of the voltage regulator to unload an overloaded engine - generator

    電壓暫降電壓暫降是在負荷增加而調整器還未能進行校正時、或電壓調整器正在為過載的發動機卸載時出現的電壓下降。
  10. This dissertation describes in detail about the operation principle of cooling system, the hardware circuit design and software design of the single chip control system. being different to the structure collation method of traditional cooling system, this system divided the whole system into two parts : cooling system for engine and cooling system for hydraulic oil system, and both of them are controlled by one singlechip

    這種電液混合驅動冷卻方式可以使風扇離開發動機而靈活布置，克服了傳統驅動方式的各種弊端，減小了風扇的徑向間隙，提高了容積效率，降低了能耗，並有效解決了發動機和液壓傳動系統的過熱問題。論文對該系統的工作原理、硬體組成、軟體設計作了詳細論述。
  11. Considering the local nonlinearity of the rotor - bearing system, a systematic dimension reduction method is applied in this paper for low - pressure rotor - bearing of the 200mw turbine set system. the model of the rotor - bearing system is established by fem ( finite element method ). the fixed - interface component mode synthesis procedure is applied to significantly reduce the dimension of the system

    本文針對200mw汽輪發電機組低壓轉子?軸承系統，採用了一種系統的降維分析方法:利用有限元方法建立了轉子?軸承系統的有限元模型，然後利用固定界面模態綜合法顯著地降低系統的維數。
  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

    而不同容量的負載，以及負載的不同功率因數，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

    而不同容量的負載，以及負載的不同功率因數，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. Abstract : it is capable for stabitizing operating data, raising generating capacity, and saving energy that a low pressure and condensing turbine - set was installed on the exhaust pipe of turbine - set of back - pressure or extraction and back - pressure, and was run in parallel with a little heat load

    文摘:在背壓或抽汽背壓式汽輪機排汽處增裝低壓凝汽式機組，與少量熱負荷並列運行，可穩定運行參數、提高發電量、節能降耗。
  15. Combined with the key project " the design of evaporative cooling transformers " of hebei province, the thesis not only carries out some theoretical explorations of the application on electrical transformers, but also presents the method on selecting coolants and studies the characteristics of the selected coolant. then it proposes the design method of the tank structure and cooling systems of evaporative cooling transformers for the industrial application

    本文結合河北省科技攻關項目「蒸發冷卻變壓器的研究」 ，對電氣設備相變降溫的理論進行了探討，提出了蒸發冷卻變壓器箱體結構和冷卻系統的設計方案；對冷卻介質的選用和相關特性進行了研究；針對工程實際研製了一臺容量為30kva的蒸發冷卻變壓器樣機，並進行了相關實驗。
  16. Then reactive power optimizing calculation is figured out on the chongqing power network on condition that the loss minimum of the active power network is object function, taking account of the limit of voltage restriction condition, adopting three mode of generators adjustment reactive power compensation and tap change. it achieves satisfaction result, expectable purposes of reducing voltage and active loss

    然後以系統有功網損最小為目標，考慮電壓約束條件的限制，採用發電機調節、無功補償、分接頭調整三種調控方式對重慶電網低谷時段的運行方式進行了無功優化計算和分析，取得了滿意的結果，達到了預期的降壓目的，減少了網損。
  17. The experiment of under - excitation operation and adjusting voltage of generator was carried through in chongqing electrical power plant. based on the result, a thorough analysis was taken on the step - down effect, stable limitation, capability of absorbing reactive power when generator operating under excitation

    通過對重慶電廠發電機的進相運行和調壓試驗，全面分析了發電機進相運行的降壓效果、穩定極限、進相能力，做出發電機p 、 q運行曲線，作為發電機進相運行的依據。
  18. The results show that the exhaust fan current increases with frosting enhancement, while the increasing speed gets slower in the end of frosting, and the curves of current are slightly different at different voltages ; that the evaporation temperature decreases with frosting enhancement, and the decreasing speed becomes increasingly faster ; and that misoperation of defrosting can be avoided by using the intelligent defrosting control method based on exhaust fan current combined with evaporation temperature presented according to the experimental results

    結果表明，排風機電流隨結霜厚度的增加而增大，增加速率在結霜後期趨緩，不同電壓下電流變化曲線略有不同；蒸發溫度隨結霜厚度的增加而降低，下降速度越來越快；使用根據實驗結果提出的基於排風機電流和蒸發溫度聯合控制的智能除霜方法可以基本避免誤除霜動作。
  19. According to the structure characteristics and motion rules of the new type nursing robot, the close loop control system of this new type nursing robot is designed and made with the virtual instrument developing software labwindows / cvi, mcu, piezoelectric ultrasonic motor and high precision optical incremental encoder, which can make the robot reset and rotate by the predefined tracks. at the same time, in order to make the nursing robots used more widely where intensity, precision and price are not high, another control system is designed with the step motor, virtual instrument developing software labwindows / cvi, multi - function daq card pci1711, linear power amplifier. in order to use the nursing robots in acupuncture therapy, a simple finger is designed

    在對其結構特點和運動規律分析的基礎上，本文以虛擬儀器編程語言labwindows / cvi為軟體開發工具，以單片機為控制核心，以超聲電機為驅動元件，以高精度光電編碼器作為速度和角位移檢測裝置，實現了機械臂的復位以及預定軌跡的閉環控制系統的開發;同時為適應一些強度不大、精度要求不高的應用場合，也為降低成本，簡化控制裝置，推動新型護理機械臂短期內應用推廣的需要，以目前應用較為廣泛、控制技術較為成熟的步進電機為驅動元件，用labwindows / cvi開發環境、 pci1711數據採集卡以及線性功率放大器開發了一套控制系統，實現了手臂的復位、勻速運動以及預定軌跡的控制系統;為推廣護理機器人在針灸理療中應用，設計了簡單的手指機構並利用labwindows / cvi開發環境，以及智能材料驅動器? ?層疊式壓電驅動器，進行了手指的抓取以及對驅動對象的轉動控制。
  20. Their engines are exported globally and used in such applications as commercial vehicles, agricultural equipment, compressors, generators, forklift trucks, construction equipment and ships

    他們的發動機出口全球並且在諸如大量生產的交通工具，農業設備，壓縮機，發電機，叉式升降機，建築設備及輪船得到應用。
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