電功率曲線 的英文怎麼說

中文拼音 [diàngōngxiàn]
電功率曲線 英文
electric power curve
  • : 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...
  • : 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
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. The lower part of pv curve contains abundant information about uep bifurcating as power changes

    常用力系統p - v的下半部分包含有不穩定平衡點隨p變化的豐富信息。
  2. This paper researches and analyses the developments of web technology and magnetostrictive transducers from world wide region. the paper also analyes the characteristics curve of magnetostrictive transducers based on its equivalent circuit and researches the method how to make sure its syntony frequency and its electric simulation network parameters. at the same time, by using jsp technology, a magnetostrictive transducer electric simulation application is designed based on b / s three - tier system structure. the experiment data is fitted by curve fitting module. the equivalent input impedance of it with stimulate loop is separated based on the results of curve fitting and the syntony frequency and electric simulation network parameters of magnetostrictive transducers is determined by the input impedance. the method presented in this paper can determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers with a better accuracy than the testing method of syntony & anti - synton y. further more, jsp, the advanced technology at current, has been used to realize a magnetostrictive transducer web electric simulation system. the system has good human computer interface and the function of resource sharing and information publishing. the research of this paper and its achievements have some practical merits in the researchful and applied fields of magnetostrictive transducer

    用java編程語言編寫的擬合模塊,對輸入的實驗數據進行了最小二乘法的擬合;根據擬合結果可從帶激勵圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵流時由機械振動形成的等效輸入阻抗,並由此輸入阻抗確定磁致伸縮換能器的諧振頻氣模擬網路參數。本課題提出的方法與傳統的諧振?反諧振法相比,能更準確地確定磁致伸縮換能器的諧振頻及其氣網路參數。同時,採用當前比較先進的web技術,實現了基於jsp的磁致伸縮換能器web氣模擬系統,該系統具有良好的人機界面和資源共享、信息發布能。
  3. First from system aspect, this paper uses voltage sensitivity, pv curves method, equivalent reactive compensation method, back - up generation method to evaluate the reactive value of the generators in seven buses system and ieee 14 buses system. the vs and pv methods can evaluate the source ' s ability of tracking the load ' s variation. the erc and back - up methods can evaluate the availability of replacing other generators. the value determines the cost

    從對系統貢獻角度,採用壓靈敏度方法( vs法) 、 pv法、等效無補償法( erc ) 、無備用方法來確定一個七節點系統中的發機的無價值和ieee14節點系統的發機的無價值,壓靈敏度法和pv法可比較出不同源跟蹤負荷變化的靈敏度大小,而等效無補償法和無備用方法可比較出不同源替換其它發機是否是最有效的。
  4. The relation between area of ccd saturation and 0. 632 m 、 1. 06 m laser power / energy was measured. the ccd camera was disturbed by strong radiation from laser outside the field of view in experiment. the relation between the area of ccd saturation and off - axis angle was measured

    通過實驗,得到激光干擾ka - 320型面陣ccd光探測器的像元飽和閾值、探測器靶面飽和閾值、局域損傷閾值,並得到了0 . 632 m與1 . 06 m波段入射激光與ccd靶面飽和程度的對應關系,了解了面陣ccd探測器受激光干擾的各個階段。
  5. In the end, the main content of this dissertation is addressed. in chapter 2, based on the analysis of present vibrator ' s principle and structure, two kinds of transfer functions and frequency response curves of the vibrator, driven by voltage feedback power amplifier and current feedback amplifier, are given separately. and turnover frequencies between different frequency rangs are also given

    第二章分析了標準振動臺的工作原理和結構,在此基礎上,建立了標準振動臺的機械和氣方程,給出了恆壓源和恆流源放激勵下的振動臺傳遞函數及幅頻、相頻特性,列出了不同頻段間的轉折頻
  6. Abstract : a new type cold frame is intruduced. the deformation of unsymmetry section steel after cooling is mainly eliminated by reversely curring it on line, ensuring the achievement of automation of meticulous repair. at the same time the disposing principle of equilibrium weight on the driving axis of cold frame drived by eccentric wheel was improved. the torsional moment of transmission shaft and power of electric motor are reduced by the method

    文摘:介紹了一種新型冷床,通過在對非對稱型鋼進行反向彎,基本上消除了非對稱型鋼冷卻后的變形,保證了精整工序自動化的實現.同時,提出了偏心輪驅動的冷床驅動軸上平衡重的配置原則.此方法可降低傳動軸上所受的扭矩,減少了動機的
  7. Second, this paper analyzes the relation of reactive support service with voltage, power limit curve, transaction amounts. according to the power limit curve, this paper analyzes the source of the reactive cost to get an interzone cost function. using marginal cost theory, it concludes that the reactive spot price is the derivative of the cost function in generator buses

    另外,本文還從發機角度上分析了無服務與壓、限制、發機向負荷傳輸能大小的關系;根據限制對發機無成本的來源進行詳盡剖析,從理論上確定一個分區間的成本函數;並依據短期邊際成本理論可推出,計算發機節點的價可採用無成本函數的偏導數的方法。
  8. Under windows nt and labview development environment, using the linear fit module, exponential fit module > general polynomial fit module of labview to design a method for fitting the experiment data, the results of curve fitting indicate that the purpose of general polynomial fitting is better than the rest. separating the equivalent input impedance of magnetostrictive transducers without stimulate current from input impedance of it with stimulate loop based on the results of curve fitting, and determining the syntony frequency and electric simulation network parameters of magnetostrictive transducers by this input impedance. finally, with labview network functions, realizing magnetostrictive transducer electric simulation system based on web server and discussing a scheme for this system network by datasocket. the method of this paper can more accurately determine the syntony frequency and electric simulation network parameters of magnetostrictive transducers than the testing method of syntony & anti - syntony. at the same time, discussing virtual instrument measurement system and how to realize magnetostrictive transducer electric simulation network system by labview network functions of network virtual instrument measurement development environment

    在windowsnt系統環境和labview虛擬儀器技術開發平臺下,首次利用labview中的直擬合模塊、指數擬合模塊以及多項式擬合模塊,設計了一種對實驗所得數據進行擬合的方法,對三種擬合方法進行了比較,擬合結果表明,多項式擬合方法相對于其它兩種擬合方法效果更好;根據擬合的結果可從帶激勵圈的磁致伸縮換能器的輸入阻抗中分離出磁致伸縮換能器鐵芯在無激勵流時機械振動形成的等效輸入阻抗,並由此輸入阻抗確定了磁致伸縮換能器的諧振頻及其氣模擬網路參數;最後通過labview提供的網路能,實現了基於web服務器的磁致伸縮換能器氣模擬虛擬儀器測試系統,並探討了通過datasocket技術實現該系統網路化的方案。
  9. The heating response curves of temperature rise and thermal resistance of semiconductor power emitting - lighting diodes are obtained according to electrical methods

    摘要通過學測量方法得到了半導體發光二極體溫升與熱阻的加熱響應
  10. Based on many references form civil and abroad, the author mainly studies the measurment theory and method for flux, raising height, axial power and rotational velocity. avoiding many complicated and intermediate courses for power wastage analysis, introduces the electric measurement and using efficiency curve of motor in measureing axial power, and satisfies the automatization of the device. the paper also provides a new method, inductive winding, in measuring rotational velocity of electromotor, supplys limitations of other method in measuring rotational velocity of electromotor in water, and meet practical needs in developing diving electric pump for corporation

    作者在參閱大量國內外有關文獻,著重探討了水泵流量、揚程、軸、轉速的測試原理和測試方法,提出了採用測法並結合機效特性測量水泵軸,從而避免了損耗分析法中大量復雜的中間過程,滿足了試驗裝置的自動化測量要求;採用漏磁感應圈法測量機轉速,彌補了其它轉速測量方法對水下機測試的局限性,適應了萊恩公司開發潛水泵的實際需要。
  11. This paper studies the application of inductively coupled plasma ( icp ) technology to the etching compound semiconductor insb - in film. by means of single probe and double probe, the ion density and electron temperature of chamber ( 30mm and 50mm in height respectively ) under varied process condition were diagnosed. the spatial distribution of the axial position of the two parameters and the varied curve that the two parameters varies with the power and air pressure are obtained

    利用單探針和雙探針診斷30mm高反應室和50mm高反應室在各種工藝條件下的離子密度和子溫度,得到這兩個參數在反應室軸向位置的空間分佈、隨和氣壓的變化、頂蓋接地和反應室體積對它們的影響,結果表明離子密度為10 ~ 8 10 ~ ( 10 ) cm ~ ( - 3 ) ,子溫度在4 10ev之間;當頂蓋接地時,該處的等離子體密度明顯大於不接地;在同樣條件下, 50mm高反應室內的離子密度明顯大於30mm高反應室。
  12. The simulated test of the mechatronics soft start equipment is made regarding the experimental platform of belt conveyor as load, the sensor design is had for selecting type, the testing datum are gatherd and analyzed, the rational curve of velocity in the starting and braking progress are gained, the best matching ratio of driving power for the double asynchronous moters is found

    以帶式輸送機實驗臺為負載進行了機械子式軟起動裝置的模擬試驗,對傳感器進行了選型設計,對試驗數據進行了採集與分析,確定了合理的起、制動速度,求出雙機驅動的最佳配比。
  13. The topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full - bridge mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of the converter are investigated. the output characteristic curve, the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1 / n times line voltage frequency are given

    路拓撲族包括單四象限開關式、推挽式、半橋式、全橋式路,以全橋式路為例分析研究了這類換器工作模式、穩態原理與壓瞬時值反饋控制策略,給出了變換器的外特性、關鍵路參數、與壓n倍頻或n分頻信號同步的基準正弦路的設計。
  14. Taking dc motor test as an example, a creative idea of applications of some advanced signal processing tools, such as time - frequency analysis, wavelet, and instantaneous frequency ( if ) evaluation, in motor testing field is presented. the paper systematically summarizes basic theories of time - frequency analysis and wavelet transform based on which an in - depth research of effective if evaluation based on wavelet ridge and wavelet curve is carried out. in the end a fast t - n characteristic testing system with neither torque nor speed sensor is successfully developed

    本論文主要關注小波分析在機性能自動測試系統中的應用,針對傳統機測試系統以及信號處理技術在機測試領域中應用的不足,以直流機為例,提出了將時頻分析、小波包變換以及基於小波脊的瞬時頻提取方法應用到機測試領域的新思路;較系統地總結了時頻分析和小波變換的基本理論,深入探討了基於小波脊和小波的瞬時頻提取,並成開發了基於正交小波包分析和基於小波脊的瞬時頻提取的無轉矩轉速傳感器的直流機快速測試系統。
  15. While working in offline ( no pc ) mode, additionally to normal transducer, it has soft - startup function and fast - stop function. and the input of frequency and voltage - coefficient is optional. while working in online mode, additionally to working in offline mode, it can process, display, save and load waveform, which is specialty of computer

    脫機工作(無pc )時,它除具有一般變頻器能外,還具有軟啟動能、頻壓輸入源可選、急停能等;在聯機工作時,除具有脫機工作的全部能外,還具有計算機特有的圖形處理、顯示、存取能力,包括瞬態波形、各種參數動態過程等。
  16. 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力機的最大輸出的可行性,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、無獨立調節機理,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速恆頻風力發時必需的定子磁鏈定向矢量控制策略;針對雙饋發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,研製出了一套小完整的雙pwm變頻器交流勵磁的雙饋風力發機實驗系統,進行了空載、並網、同步速及上、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。
  17. And then some terminal techniques on pic, devices simulation theory, resurfs effect and medici software are presented. at last three kinds of high voltage power devices have been designed and simulated. based on the analysis of the breakdown voltage and electric field distribution of the high power devices, the key physics and structural parameters effects on the breakdown voltage are found

    本文首先介紹了國內外集成路的發展狀況,然後介紹了高壓集成路中的幾種終端技術、 resurf效應、器件模擬的基本理論和medici器件模擬軟體,最後對三種型號的高壓器件的擊穿特性進行了分析和計算機模擬,指出了影響器件壓的關鍵的物理和結構參數,並對這三種型號的器件進行模擬,得出的特性和參數基本上與公司給出的一致。
  18. Our results suggested the accumulation of ft in muscle was not the only factor that affected " spectrum shift " during muscle fatigue. the decline of the firing rate of motor units, the synchronization of motor units and an inadequate cns drive may be the important mechanisms that attributed to the change of semg signal during isometric contractions

    本研究認為肌肉疲勞過程中h ~ +濃度升高不是導致肌左移的唯一因素,運動單位放下降、中樞驅動減弱和運動單位活動的有序性或同步化可能是肌肉活動時肌信號變化的一種重要機制。
  19. Because quasi - fermi levels of a laser diode ( ld ) vary with the carrier density, it is predicted that a new type of hysteresis loop should occur for the current passing ld while a hysteresis loop appears on the power - frequency curve of the ecld. an explicit analytical expression for the frequency width of the hysteresis loop and the condition for the formation of the hysreresis loop has been deduced

    預測了由於半導體激光二極體( ld )的準費米能級之差隨ld內流子密度的變化而變化,因而,在調諧外腔半導體激光器的輸出?振蕩頻上出現雙穩環的時候,通過ld的流也應出現一個伴隨的新型雙穩環? ?流雙穩環。
  20. The impact of load characteristics and on load tap changer on static voltage stability is analyzed with the methods based on v - q and v - p curves, and the phenomenon of voltage stability voltage instability and voltage collapse are studied with steady - state simulation. finally the thesis presents the essential explanations of both voltage stability and the mechanism of voltage collapse. xu yonghua ( electrical engineering ) directed by prof

    通過壓?分析法定性分析了不同負荷特性和有載調壓變壓器對靜態壓穩定性的影響,並通過靜態模擬法從物理現象上研究了壓失穩和壓崩潰現象,最後針對這些現象給出了關于壓穩定、以及壓崩潰的本質解釋。
分享友人