能量變換 的英文怎麼說

中文拼音 [néngliángbiànhuàn]
能量變換 英文
energy converion
  • 能 : 能名詞（姓氏） a surname
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 能量 : 1 [物理學] energy; amount of energy 2 （能力） capabilities; capacity; 能量不滅 conservation of e...
  1. Vector - contorl wvf system of asynchomous motor is a high performance speed - control system and has been used in a lot of situations of high precision and high performence. in the base of vector - control, some control methods are developing, for example speed - sensorlesss control and self - adaptation control

    矢量變換控制的異步電動機變頻調速系統是一種高性能的調速系統，已經在許多需要高精度、高性能的場合中得到應用。以矢量變換為基礎的許多控制方法，諸如無速度傳感器控制、自適應控制等正在發展中。
  2. Accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is use to calculate the dynamic and steady performance by kron and symmetrical coordinate converter

    論文通過對電機基本方程進行kron變換和對稱分量變換，分別建立了系統完整的數學模型，編制了動態和穩態模擬程序，並對系統進行了模擬，對系統的動態、穩態性能進行分析。
  3. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  4. Calculation of no - load emf waveform for powerformer

    能量變換器空載電勢波形的計算
  5. The relation on progressive change and exchange in energy between folk faith and large religion

    民間信仰與大型宗教的遞變關系及能量交換
  6. The study result also shows that there is significant energy exchange between all the pipe sections connected to the same junction, therefore, those flow phenomenon can not be accurately reflected if neglecting or adopting the constant energy loss coefficients

    研究結果還表明，與同一結點相接的各管段間存在顯著的能量交換，因此，忽略或採用恆定不變的能量損失系數均不能正確地反映這些水流現象。
  7. This dissertation focus on a innovation methods for inverter controlled hydraulic elevator system applying pressure accumulator as the " pressure - energy transformer ". the required power supply and running energy can be reduced remarkably when accumulators storing and releasing pressure oil. then the key items about hydraulic speed control system based on the ens 1 - 2 and other hydraulic elevator standards are investigated in detail

    本論文主要研究了採用蓄能器-液壓泵馬達構成的「壓力-能量轉換裝置」來儲存釋放變頻驅動液壓電梯系統的能量，從而降低液壓電梯裝機功率和運行能耗的新方案；在此基礎上，根據國內外液壓電梯的標準進行了與速度控制相關的關鍵項目測試，最後針對本課題研製的節能控制系統與當前市場上幾種典型的液壓電梯控制系統進行了能耗對比研究。
  8. 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電動機變頻調速技術的發展概況，在回顧電梯液壓控制系統節能技術的基礎上，介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理，分析了動力系統在電梯轎廂輕載上下行、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力泵站的結構設計和參數設計，重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容；最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。
  9. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  10. Proper selection of control algorithms and capacitor voltages helps synthesize controllable and waveforms almost sinusoidal three - phases ac voltage with minimum low - order harmonics at both sides of the converter

    選擇適當的控制演算法和電容電壓，能在變換器的兩側合成低次諧波含量小且波形近似於正弦的可控輸入/輸出電壓。
  11. The frequencies of translational actuation influence the stability of the tethered mass system. when the frequencies approach the natural frequency of the system, the period of energy exchange decreases and the amplitude of the pendulum increase. when the frequencies equal to the natural frequency of the system, resonance appears

    變幅激勵的頻率對系統穩定性有較大影響，當變幅激勵頻率接近系統固有頻率時，系統面內外能量交換周期減小，擺幅增大;當變幅激勵頻率等於系統固有頻率時，系統面內外均出現共振現象。
  12. Ultrasonic is a kind of mechanical wave that frequency is upper 20khz. ultrasonic may be generated by many ultrasonic transducers

    超聲波是頻率高於20khz的機械波，它可由多種能量轉換器轉變而成。
  13. For the sake of atmospheric analysis, geopotential is commonly converted ( namely, divided by the standard acceleration due to gravity ) to geopotential height and expressed in units of geopotential metre

    為方便大氣分析，一般會再把位勢轉換（除以重力常數）成位勢高度，單位由能量變成高度，以位勢米表示。
  14. Effciency of energy transfer

    能量變換效率
  15. Double - pwm control converter is composed with common converter and pwm rectifier

    雙pwm變頻器是在一般通用變頻器的基礎上引進了pwm整流的能量變換裝置。
  16. It ' s a novel inductive electrical power deliver that deliver power from stillness apparatus to moving electrical apparatus. this technology is based on power electronics and electromagnetic induction, and realized by applying modern control theory

    該技術利用現代電力電子能量變換技術、磁場耦合技術，藉助于現代控制理論和手段實現能量從靜止設備向可運動設備的傳輸。
  17. Firstly, the basic theory of switch reluctance generator ( srg ) is discussed in detailed, based on the mechanism electric energy converting analysis, non - linear analysis and non - linear simulation. three control methods of srg ( angle position control method, current chopping control method, pulse width modulation control method ) are deeply studied and analyzed. the electronic controller, which controlled by dsp or by hardware circuit are developed for low - power switched reluctance generation system

    首先系統地研究了開關磁阻電機發電運行的基本理論，從機電能量變換的角度分析開關磁阻發電機的機電能量變化規律；通過非線性分析和非線性模擬方法，明晰開關磁阻電機發電本質，概括出開關磁阻電機發電運行的特點；系統、深入地研究了開關磁阻電機發電運行的控制方案（角度位置控制、電流斬波控制、脈寬調制控制） 。
  18. It is now mostly used in hybrid electrical vehicles ( hev ) as an energy transducer and the electrical variable transmission ( evt )

    它主要作為能量變換器以及電無級變速器應用在混合動力車上。
  19. In the model, many processes or phenomena such as crack friction and growth, heat conduction, phase transformation of oxidant particulates, heat generation by viscous liquid layer, chemical reactions of gases in cracks, heat and mass exchange between phases of gas and solid, are described

    模型描述了裂紋滑移擴展、熱傳導、含能顆粒相變、液化層粘性加熱、裂紋內氣相反應、氣相固相質量能量交換及與裂紋擴展耦合等過程。
  20. After vector transformation control is presented, the ac machines control technology can theoretically solve the problem on the static and dynamic performance relative to the dc technology

    繼1971年矢量變換控制技術出現之後，交流傳動技術就從理論上解決了交流調速系統在靜、動態性能上與直流傳動相比所存在的問題。
分享友人
分享到 Line

分享到臉書