電力轉速計 的英文怎麼說

中文拼音 [diànzhuǎn]
電力轉速計 英文
electric tachometer
  • : 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...
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • : 轉構詞成分。
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 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...
  • 電力 : [電學] power; electric power電力變阻器 power rheostat; 電力捕魚 electrofishing; 電力潮流 directio...
  • 轉速 : speed; revolution; rotation rate; speed of revolution; rotating speed; rotational speed轉速指示器...
  1. The sampling rate of the system can reach 3704 sps, and the crank angle is 1. 94 degree per sampling point corresponding to the crank speed of 1200r / min. in the mean time, the position signal of the piston could be collected by photo - electricity switch

    本研究首先設和實現了摩擦採集路系統,裝置最大采樣率可達到3704sps ,在曲軸為1200r / min時,對應曲柄角1 . 94度采樣點,並且可以採集用來確定活塞位置的光開關的信號。
  2. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應機進行了深入細致研究,內容包括: ( 1 )本文採用有限長行波面流作用於有限長鐵芯上的模型,引用了氣隙磁場一維解,研究了單層繞組磁場,奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較,簡單介紹了二維解; ( 2 )用有限元軟體ansoft對大圓環直線感應機空載氣隙磁場進行了靜態分析,並分析了結果; ( 3 )用軟體進行了額定壓下的瞬態分析,得到了矩,位移,隨時間變化曲線圖,利用單極性霍爾元件測定並與軟體算結果進行了比較,採用等效路法算了堵時的最大並做實驗進行了驗證,由實驗測得了三相流波形,並與算結果進行了比較,對其不對稱性進行了定性分析。
  3. From the paper, it can be concluded that it is necessary to make many intellectual electronic equipments access the internet in the new era, with the development of the computer, communication and the network technique, and the embedded network platform based on the advanced x86 microcontroller has the characteristics of simplity, clarity and high - adaptability in the applications, it can be widely applied to many industrial fields such as power automation, communication terminal, monitoring and measuring system on line, embedded web, network protocol transformation, intellectual instruments etc

    縱觀全文,得出如下結論:隨著算機、通信及網路技術的發展,實現大量智能子設備與internet的結合,即子設備web化是信息時代的新趨勢。基於本文方案構建的高端x86嵌入式網路平臺具有應用開發簡單快、靈活適應的特點,可廣泛應用於自動化及各種氣測控設備、通訊終端、在線監測系統、嵌入式web 、網路協議換、智能儀器儀表等眾多工業領域。
  4. Using detailed computer simulations, its designers have arranged its orientation and aerodynamic exterior to accelerate the gale - force winds that blow over the pole and channel them underneath the station

    通過嚴密復雜的腦模擬,設師安排設建築的方位和其空氣動學外殼,讓強風加吹過鋼筋柱使風移到基地之下。
  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,此模型方程涵蓋了系統中特別引人注目的幾個量- -子角、、發機q軸勢eq 、暫態勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端壓vt ,在此基礎上建立了實用的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出大型汽輪發機的非線性綜合控制器及機端壓最優控制器,通過模擬實驗與採用常規的按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的最優快控汽門(考慮發機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高系統的暫態穩定性,並且在系統遭受小干擾時同樣具有良好的調節性能。
  6. The result of computer and analysis based on blade elements theory shows us that we can regulate the rotate speed of wind turbine rotor by changing set angle and pitch h. variable - pitch system is the key component of the whole wind turbine, which can assure safely pitch - control and brake

    本文利用葉素理論,經算分析得出:通過改變風機安裝角可以改變槳距h ,從而改變風機的。變距機構是變槳距控制型風機組實現變距控制和安全剎車的關鍵機構之一,它的運動由平動和動兩部分組成。
  7. The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced

    論文第二章首先簡單介紹了交流異步動機變頻調技術的發展概況,在回顧梯液壓控制系統節能技術的基礎上,介紹了本課題研製的「採用蓄能器的液壓梯變頻節能控制系統研究」的基本原理,分析了動系統在梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式;詳細地介紹了本課題節能系統液壓動泵站的結構設和參數設,重點研究了液壓動泵站的結構設、液壓泵馬達可逆性問題及其選型設算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設、蓄能器-泵馬達壓能量換裝置的設、多功能集成控制閥組的設等內容;最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件氣接線、算機控制及數據採集系統的硬體設等內容。
  8. We have got the instrument ( pressure gauge, thermometer, tachometer, current meter, universal meter ) ready for the experiment ( test )

    我們已經準備好做實驗(試驗)的儀器(壓表、溫度流表、萬用表) 。
  9. Whole scheme of frame design of test - bed is proposed as : the host fanner supply the firebox the once and twice air required by diesel oil ' s burning and the cooling air ; the export parameter of the test - bed is varied by the adjust of the flux of air and diesel oil. and the air flux is varied by adjusting the rev of the fanner adjusted by transducer and the corner of the fan inlet adjusted by step motor. the quantity of oil is varied by adjusting the oil valve adjusted by step motor ; the measurement of the air flux in the test - bed adopts the method of fanner dynamics performance test in the nation criterion

    確立了實驗臺結構設方案:主風機為燃燒器提供燃燒所需的一次、二次進風量及冷卻風量;利用變頻器調節主風機、用步進機調節風門開度來調節風量,用步進機調節回油閥開度來調節供油量,從而實現對模擬實驗臺出口煙氣熱流量的調節;實驗臺的流量測量採用風機動性能測試標準中測流量方法等。
  10. From single - phase power supply, the shocks have driven two of the permanent cigang rotor rotary rotary magnetic field, and reducer with calculated design to export different rotational speed and moment, with the corresponding reduction in rotational speed increase moment

    由單相源供,振蕩產生兩相旋磁場驅動永久磁鋼子旋,與減器配合,根據算設可以輸出不同的矩,隨著減少的相應的矩增加。
  11. There are five parameters need to be measured. there are five channels for input : the displacement of casting - roller, the rotate speed of casting - roller, the pressure of casting and rolling, the casting temperature and the water - speed of cooling water. they are measured by raster, photoelectric coder, strain pressure sensor, thermocouple and turboflowmeter

    系統需要進行監測的參數有五個,即有五路輸入信號:鑄輥位移、鑄輥、鑄軋壓、澆鑄溫度、冷卻水流,分別採用光柵、光編碼器、應變式壓傳感器、熱偶和渦輪流量作為檢測元件。
  12. A mathematics model in the form of differential equation was constructed base on the theory of motor timing. then the model was changed into the form of transfer function. with the help of matlab, the model in the form of transfer function can be easily solved

    應用交流機調理論,建立了船舶推進系統的微分方程形式的數學模型,再將其化為傳遞函數形式的數學模型,應用matlab語言進行了動態特性模擬算。
  13. Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly

    但是高性能的交流調系統實現很困難,這是因為交流機是多變量、強耦合的非線性系統,不易實現高性能矩控制。矢量控制技術則解決了交流機解耦與矩控制問題,其基本思路? ?應用坐標變換將三相等效為二相,實現定子勵磁流分量與流分量之間的解耦,達到對交流機磁鏈與流分別控制的目的,交流機等效為直流機實現高性能調。隨著子技術的進步,算機技術飛躍發展,高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中,促進矢量控制迅猛發展,日趨成熟。
  14. 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機的輸出特性模擬風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機有功、無功功率獨立調節機理,分析了交流勵磁雙饋發機的數學模型和在追蹤最大風能捕獲變恆頻風時必需的定子磁鏈定向矢量控制策略;針對雙饋發子能量雙向流動的要求,提出並設了具有能量雙向流動能的雙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機實驗系統,進行了空載、並網、同步及上、下的發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。
  15. With the computer controlling the output of the digital signals and the analog signals, controls and adjusts startup, stop, turn and rotational rapidity of the transducer - electromotor and the strength of brake actuator ; installs the torque sensor on dynamical axis, and installs the encoder on non - dynamical axis of the dimensional globoidal indexing cam mechanism ; utilizes the virtual instrument language labview development the test and control system, with the computer real - time monitoring, late displays and storages the data of the test, and processes the data and analyses it

    利用算機控制數字量輸出和模擬量輸出來達到控制和調節變頻機啟停、向、;控制制動器的啟停和加載;在弧面分度凸輪的加載軸和空軸上安裝扭矩傳感器和編碼器;應用虛擬儀器語言labview開發試驗臺的測控軟體系統,用算機進行實時監測與事後顯示與存儲,並進行信號處理與分析。
  16. It analyses the causes to bright image movement, studies principle to compensate image movement, conforms project to compensate image movement, and designs framework to compensate image movement in the article ; to analyze and design configuration of the scanning mirror, to select matters of mirror and its support structures on the principle of consistent line expansion coefficient ; to ascertain type of moment electromotor by most rotating angle speed and most rotating moment which are required by loads in the period to take pictures, as well as by figuration size of electromotor ; to design retarder according as the electromotor parameters ; to design and optimize lightweighted mirror shapes, because the mirror is key part ; to design flexure support structure, to analyze static and dynamic characteristics of the support structure by name of patran program for validating desig n rationality ; to study function of the scanning mirror electric control system ; to test precision of the system, the results indicate the rationality of design of the scanning mirror system

    本文通過分析像移產生原因、研究像移補償原理,確定像移補償方案,並根據像移補償原理設補償機構;分析與設掃描反射鏡系統結構,根據材料線膨脹系數一致原則,選擇反射鏡及其背部支撐的材料;由掃描反射鏡在擺掃周期內的最大擺掃角度確定機的額定,根據負載矩確定機的額定距,綜合機外型尺寸等因素,確定執行元件? ?機的型號;根據所選機的參數指標,設1 : 6比的減器;利用patran軟體對掃描反射鏡系統中的關鍵件? ?反射鏡進行輕量化設與優化;設反射鏡柔性支撐結構,並通過軟體分析支撐結構的學特性,驗證反射鏡柔性支撐結構設的合理性;從原理上研究掃描反射鏡控制系統功能;進行系統精度測試,測試結果表明掃描反射鏡系統設的合理性。
  17. Finally, the principle of phase - locked - loop for speed control is discussed. the control methods of torque and magnetic levitation force are studied experimentally on a prototype bearingless motor. based on the analysis of shortcomings of the analog control system, a digital control system is proposed

    分析了採用鎖相環對進行閉環控制的原理;設了磁懸浮的模擬控制器並對磁懸浮血泵機進行了實驗研究;針對模擬控制系統存在的缺點,本文設了一種數字控制系統。
  18. This is achieved by utilising a torque transfer differential which is controlled by various sensors and an electronic control unit ( ecu ) to enable a difference in torque to go to each of the rear wheels

    感應器根據收集到的向角度,油門大小,車輪,前後,側向加等信息經過算后,腦控制油壓系統介入,推動差器里的離合裝置,把驅動誘導到一組減齒輪,從而改變左右輪驅動
  19. On the basis of investgation on the related literature of electronic speed governor at home and abroad, this proper control parameters are obtained through the experimental research of the pid digital control parameters with the orthogonality method and through the analysis of the speed change of gasoline engine rev. the electronic speed governor designed hereby performs its controlling fuction through programs, the stable rev and static timing rate of which are also set and controlled by software, has, therefore large universality and function flexibility. so for different types of gasoline engines, the obtainment of relevant parameters and the designing of relevant programs suffice to realize the control functions of the electronic speed governor

    本文在分析研究國內外有關子調器的基礎分析方法及其研究狀況的基礎上,採用pid數字控制,並用正交試驗方法對pid數字控制的控制參數進行試驗研究,得到了合適的控制參數。所設子調器是靠控制軟體來實現調節和控制功能,穩定、穩定調率等都可以進行程序設定控制,具有很強的通用性和功能擴展能。對不同型號的汽油機,只要經試驗取得合適的控制參數,編制出相應的控製程序,就可以使用此子調器進行控制。
  20. Abstract : a fast drag system is designed to simulate the law of speedvariations of a certain power system engine in the process of its start by means of electric power drag and the theory of automatic control and through adopting a new type of electric machine and frequency - change techniques, thus enabling the system to achieve quick start, instantaneous breakdown and accurate following of the electric machines speed variations curve set in advance at will

    文摘:運用拖動與自控理論,採用新型機及變頻技術,設一種快拖動系統藉以模擬某動系統發動機啟動過程變化的規律,使該系統能夠達到快啟動,瞬間制動,精確跟隨事先設定的變化曲線的目的。
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