流動變電所 的英文怎麼說

中文拼音 [liúdòngbiàndiànsuǒ]
流動變電所 英文
mobile substation
  • 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...
  • 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...
  • 流動 : 1. （液體或氣體移動） flow; run; circulate 2. （經常變換位置） going from place to place; on the move; mobile
  1. A large member of experimental findings was analyzed. the output torque of rera and plate er actuator were compared. the results showed that the torque transferred by ripple actuator is larger decuple than that of plate actuator

    本文通過對大量的實驗數據進行分析，對波紋式與平盤式電流變傳動機構的輸出力矩進行比較，得出波紋式要比平盤式所傳遞的力矩大十倍的結論。
  2. The theories and design principles of each circuit of the spwm three - phase frequency inverter experiment unit are in detail introduced in this thesis. at the same time some experiment results are shown that include the output voltage and current waves when the load is in resistivity, inductivity or asynchronous motor

    文中詳細介紹了spwm三相變頻實驗單元所包含的各電路環節的理論基礎及設計過程，並給出了調試結果，如負載為阻性、感性和異步電動機時，實驗單元輸出的電壓和電流波形。
  3. If the moving fluid in a newborn neutron star also transfers a tenth of its kinetic energy to the magnetic field, then the field would grow stronger than 1015 gauss, which is more than 1, 000 times as strong as the fields of most radio pulsars

    如果在新生中子星里的流體，也把10 %的動能轉變成磁場的話，磁場強度會上漲到超過1015高斯，這是大多數無線電波霎所帶磁場強度的1000倍以上。
  4. Aiming at the problem that existence in the monitoring of simulate disk in local power grid, to enhance the level and efficiency of the electricity dispatch, to improve operation procedures, to change the troublesome work about 6kv line simulation disk, 35kv transformer substation and 6kv substation host cording diagram revision and maintenance from man - power, manual promotion to direct - viewing, real - time and work flow high automation level

    針對地方電網「模擬盤」監視中存在的問題，為提高電力調度工作水平和效率，完善操作規程，把煩瑣的6kv線路模擬盤、 35kv變電所和6kv配電所主結線圖的修改和維護工作從人工、手動提升到直觀、實時和工作流程高度自動化水平，實現電力調度日報、月報及日常管理實現規范化、自動化。
  5. The system is different from traditional silicon controlled dephasing method, such speedy modules as whole controlled electric and electronic equipment igbt and high frequency pwm controlling methods are employed, and the voltage of exchanging power supply of motor of beam pumping units can be controlled automatically, so there is no problem of power factor being decreased brought by silicon controlled phase single controlled, power factor in power net of beam pumping units " motor is enhanced really

    由於雙管齊下，電機電網側的功率因數得到了大大提高。與傳統的可控硅移相控制方式不同，本系統採用全控型電力電子器件igbt等快速模塊及高頻pwm控制方式，對抽油機電機的交流供電電壓進行自動控制，不存在可控硅相控角所帶來的功率因數變差的問題，真正提高了抽油機電網側的功率因數。
  6. This dissertation focuses on how to develop a high performance damping mechanism based on multi - energy transitions, which is independent or little dependant with the viscoelasticity of polymer matrix. three sections are mainly included in this dissertation as follows : chlorinated polyethylene ( cpe ) / piezoelectric ceramic ( pzt ) / vapor grown carbon fiber ( vgcf ) composites ; cpe / 2, 2 ' - methylene - bis - ( 4 - methyl - 6 - cyclohexylphenol ) ( zkf ) / vgcf composites ; organic hybrids made from cpe and small molecules cpe / pzt / vgcf composites : the damping composites of multi - energy transitions mechanism were produced by mixing pzt and vgcf into cpe. in this system, the mechanical vibration energy that was transmitted to cpe was found to convert into joule ' s heat through conduction paths between vgcf in the polymer matrix, so the vibration fades away

    本論文主要包括三個方面的研究內容： ?氯化聚乙烯（ cpe ） /壓電陶瓷（ pzt ） /氣相生長碳纖維（ vgcf ）復合材料； ? cpe /雙[ （ 2 -羥基- 3 -環己基- 5 -甲基） -苯基]甲烷（ zkf ） / vgcf復合材料； ? cpe基有機小分子混雜型復合材料cpe / pzt / vgcf減振復合材料：利用壓電和導電填料填充高聚物基體，當復合材料受到機械振動時，通過高聚物基體將機械振動能傳遞到壓電陶瓷粒子上，利用壓電陶瓷的壓電效應，將機械能轉換成電能，則電流在導電粒子產生的迴路中流動，由於導電迴路具有一定的電阻，所以電能又轉變成熱能耗散掉，從而起到減振的目的。
  7. Of the currently available coolers for electronic products with a high heat flux, microchannel heat sinks have been proved to be able to provide the best heat transfer performance and are one of the most promising coolers. the manifold microchannel ( mmc ) heat sink has many advantages such as low thermal resistance, compact structure, little amount of coolant, low flow rate, uniform temperature distribution along the flow direction and many others, so it is able to provide the best heat transfer performance : lowering the maxmal temperature and the temperature difference

    在目前高熱通量電子產品冷卻器中，微通道熱沉已被證實是傳熱性能最佳且最具應用潛力的冷卻方式之一，而歧管式微通道熱沉因具有低熱阻、結構緊湊、所需冷卻液量小、沿流動方向溫度分佈均勻等優點則成為減小電子元器件換熱表面最高溫度、降低溫度變化的一種有效方法。
  8. Lenz ' s law states that the induced current flows in a direction such that it opposes the change producing it

    楞次定律指出感生電流所流動的方向，是要對抗產生的電流改變。
  9. Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed

    論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。
  10. Fuzzy pid control algorithm is applied to its controller, the reference parameters that mcu needs during operation are gotten by matlab simulation, then automatic current - transformation method is adopted to intelligently charge accumulators

    控制器的控制演算法採用了模糊pid技術，通過matlab模擬得出單片機運行所需要的參考參數，再通過自動變流法對蓄電池進行智能充電。
  11. A circuit or device that converts a dc input voitage to a regulated output woltage, the output voltage may be lower, higher or the same as the input voltage, switching - regulator dc - dc circuit most often require an inductor or transformer to achieve t - he regualted output voltage, wwitching fegulator circuits can achieve a higher level of power efficiency whec compared to non - wwitching techniques

    指一電路或儀器可將一直流輸入電壓換成一高速過的輸出電壓，此輸出電壓可為較低，較高或輸入電壓相同，互動式直流對直流調整電路通常需要一電感或變壓器以達到所要的輸出電壓，交換式調整電路和非交換式技術比有較高的功率效率。
  12. The dc distributor shelf play a important role in transformer substation, power plant, big and middle plants etc. it supply mainly to the controled, protected and communicate equipment, automechanism, manipulaor and adjusted machine. the same time it may as accident lighting power supply, so its performance and reliability affect directly the running safely of whole power supplying system

    直流電源屏作為供電電源在變電站、發電廠、大中型廠礦企業等供電系統中佔有很重要的地位，主要用於向控制、保護、通信設備、自動裝置操作機械和調節機械的傳動機構供電，同時還可以作為獨立的事故照明電源，所以其性能及可靠性直接影響到整個供電系統的正常安全運行。
  13. In the paper, theories and functions of the whole system are introduced, the typical theories and algorithms of relay protection employed in the system are lucubrated, the configuration of relay protections is researched, the demonstration constitution schemes are determined, the psd remote program upgrading method based on 80c196kc is provided, the relay protection software is designed based modular structure and in which the technologies of pts data transmission and the lcd multilevel menus which contain chinese characters and graphs are adopted, a configuration software design method is provided for adapting the need of training of different structure of substations, and a set of teaching, experimental and training software which has good teaching effects and has innovation to some extent is designed

    本文介紹了整個系統的結構、原理和功能，深入地研究了本系統所用的典型微機保護原理與演算法；研究了保護的配置；確定了變電站綜合自動化系統的示範構成方案；提出了基於80c196kc的psd微機保護遠程程序升級方法；設計了裝置保護軟體，軟體模塊化設計、流程清晰，並採用了pts數據傳送和lcd圖形和多級漢字菜單設計等技術；適應對不同結構的變電站培訓的需要，提出了一種組態軟體設計方法；設計了教學性好、啟迪性強、可靈活組態的教學實驗培訓軟體，有一定的創新性。
  14. Finally, the wave equation of the electromagnetic field of this kind damper is derived from the maxwell ' s equation. the magnetic flux density at the boundary is assumed to be harmonic, so the analytical result of the wave equation is solved. when the rotor rotates, eddy currents flowing inside the conducting material field are caused

    最後，應用ahrens的電磁軸承簡化模型，從maxwell方程出發推導了應用於本文所述的被動式電磁阻尼器的波動方程，並用傅立葉級數把矩形磁場展開的諧變磁場作為磁場的邊界條件，通過求解波動方程得到磁場的解析解，從而計算了阻尼器對轉子的電磁力和由渦流引起的切向力產生的阻尼器附加功耗。
  15. Dc control power system, which plays an important role of traction power substation, is expected to be with the characters of higher reliability, automation, precision, smaller figure and maintenance - free while the technique and management of electric railway develop rapidly

    直流控制電源系統是牽引變電所的重要組成部分，隨著鐵道電氣化技術及運營管理的發展，對直流控制電源系統提出了更高的要求，具備高可靠、小型化、自動化、高精度、免維護等特徵的直流電源已倍受關注和期待。
  16. This paper studies on used the ac servo system based on ti dsp ( lf2407a ) and the foc and digital signal processing thorem, achieves following results : algorithm. we employ svpwm ( space voltage pwm ) algorithm, improve the efficiency of the electric source, and decrease the harmonious elements. we build the mathematic model of the system and simulate it on matlab platform, dsigne segmented pid regulator to adapt variable speed and widen the speed range. measurement. the velocity and electric current measuring, we adopt multi - sampling - rate and digital filter principles. as more improvements we make, the whole system gets a good results. pc control. the complete controlling system can be controlled remotely. so we develop the pc controlling program.

    採用磁場定向脈寬調制演算法，提高了電源利用率，降低了逆變電壓的諧波，改善了電機的運行特性，降低了對電網的污染；在matlab平臺上建立了交流永磁同步伺服電機和電壓空間矢量脈寬調制控制系統的數學模型，在模擬的基礎上，對傳統pid調節器進行了改進，提出轉速調節器和電流調節器採用分段pid結構，根據給定轉速所處的區間，自動選擇相應pid調節器的參數，拓寬了調速范圍，提高了控制精度。
  17. The production of some proteins increases while others are throttled back ; these changes affect the flow of blood and electrical activity

    據觀察，新生成的蛋白質有所增加，而其它一些物質的生成卻減少了；這些變化影響著心臟的血流量與電導活動。
  18. For the specific yield surface problem of bingham fluid, the yield characteristics of bingham and er fluid flow in journal bearings with infinite length are analyzed

    針對賓漢流體所特有的屈服面問題，分析了無限寬徑向滑動軸承中賓漢流體和電流變流體的屈服特性。
  19. Core losses are caused by an alternating magnetic field in the core material, thie losses are a function of the operating frequency and the total magnetic flux swing, the total core losses are made up of three main components, hysteresis eddy current and residuallosses, these losses vary considerably from one magnetic material to a - nother, applications such as higher power and hither frequency switching regulators and rf designs require careful core selection to yield the highestinductor perfor - mance by keeping the core losses to a minimum

    鐵損是由於在鐵芯中的變更磁場院所造成，這個損失與操作頻率及總流動的磁通量有關，總鐵損由三個成份組成，磁滯損，過流損及殘留損，這些損失因磁性材料不同而異，在如高功率切換調整器和rf的設計需要小心選擇鐵芯種類以降低鐵損使電感的表現最佳。
  20. 2. research on er fluid damper introduced the er fluid damper ' s working principium, structure and characteristic, selected a kind for study, constructed mathematical model base on the analyses of the performance of force. 3

    電流變減振器的研究介紹了電流變減振器的工作原理，分析了常見的幾種電流變減振器的結構、特點，確定了本文所採用的減振器類型，並在仔細研究了電流變流體力學性能的基礎上建立了電流變減振器在流體低、高速流動時的兩種數學模型。
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