逆向電流 的英文怎麼說

中文拼音 [nìxiàngdiànliú]
逆向電流 英文
backward current
  • 逆 : Ⅰ形容詞1 （方向相反） contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 （抵觸; 不順從） go aga...
  • 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 : 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...
  • 逆向 : reverse; reversal; backing; backward
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. The direction of conventional current flow is counterclockwise.

    傳統的電流方向是逆時針方向。
  2. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  3. Influence of dc - rail zero - voltage notch on the output of the inverter is investigated, and an important conclusion is obtained that the direction of output current of the inverter is not effected by the voltage deviation produced by dc - rail zero - voltage notch, on the basis of which, a new simple correction approach is put forward. experiment results show that the proposed correction method is effective

    探索了直流母線零電壓凹槽對逆變器輸出特性的影響，得出了母線零電壓凹槽形成的輸出電壓偏差與逆變器輸出電流方向無關這一重要結論，在此基礎上，提出了一種簡便的校正新方法，通過試驗驗證了該校正方法的有效性。
  4. What is new is the application, which by an inversion of the energy flow in its operation, turns the archimedes screw trough pump into a power generator for the extraction of energy

    水力螺旋發電機的獨到之處在於對水流能量進行逆向利用，把阿基米德螺旋泵轉變成一個可以從水流中提取能量的發電機。
  5. This paper introduces the importance of the cost control in the e - commerce, and probes into the recessive cost control of the material flow in the e - commerce from four aspects of the order cost control, the customer - obtaining - and - retaining cost control, the cosl control though the strategical alliance and combination marketing and scale economy, and the cosl control through working rationally out the reverse material flow policy

    介紹了電子商務成本控制的重要性，並從訂單成本的控制、獲得顧客與留住顧客的成本控制、通過戰略聯盟和組合營銷及規模經濟控製成本和通過合理制定逆向物流政策控製成本4方面探討了電子商務物流隱性成本控制。
  6. From the view point of the whole topologies of current mode hfl inverters, two topologies of half - bridge and push - pull current mode hfl inverters are proposed, which are composed of four power switches. hfl inverters in discontinuous current mode ( dcm ) are extended to those in continuous current mode ( ccm )

    從完善電路拓撲和降低成本的角度出發，本文提出了兩種結構的電流源高頻鏈逆變電路，它們分別是由四個功率管組成的半橋和推挽雙向電流源高頻鏈單級逆變電路，並將工作在電感電流斷續模式的逆變電路擴展到電感電流連續模式。
  7. The paper analyzes the composition of siemens shaft - generator with rectifier and thyristor inverter and its working principle, and introduces the independent power supply, the operation of the system, automatic adjustment, and the function of synchronous condenser, contributing to upgrade the understanding level and cognitive ability of shipping mechatronics managerial staff

    摘要文章分析了西門子帶整流逆變中間環節的軸帶發電系統的組成及工作原理，介紹了單獨向電網供電方式、系統的運行、自動調節以及調相機在系統中的作用，有助於提高船舶機電管理人員對這一系統的理解和認識能力。
  8. Some research about sensorless control of induction motors in recent years has been introduced in chapter one. in chapter two, a field - oriented control system with current regulator and voltage source inverter ( vsi ) is presented firstly, which is proved in theory that the voltage feed - forward decoupler can be omitted, the good decoupled control properties of flux current and torque current is also validated by experiments with speed - sensor based on f240dsp real system

    論文第二章從異步電機的基本數學模型入手，介紹了一種基於轉子磁場定向的帶電流內環控制的電壓型逆變器輸出閉環矢量控制結構，在理論上證明了該模型可省略電壓前饋解耦環節，採用f240dsp晶元構建的帶速度傳感器實驗系統驗證了其定子電流勵磁分量和轉矩分量有良好的解耦控制特性。
  9. They make up the voltage sourse single - phase reversible pwm rectification system together

    二者共同組成電壓型單向可逆pwm整流系統。
  10. A current that flows in an opposite direction to the flow of another current

    逆流，反向電流；逆電流與另一水流或電流的流向相反的水流或電流
  11. The down - up design includes the researches of decoder schematics, controller schematics, pipeline schematics, bus schematics, stack schematics and interrupt schematics. the thesis content and outcome of research are beneficial to the design of a cpu design project. at the same time, these contents are beneficial to the design of a microcontroller

    整個正向設計由於採用了簡化的措施，還存在一些不足，因此從逆向設計的角度，研究了pic微控制器晶元中處理器的電路實現結構，主要包括譯碼電路和控制器電路的實現結構，流水線電路的實現結構，處理器內總線的實現結構，以及堆棧和中斷電路這些與處理器電路有密切相關性的子電路單元。
  12. This paper make a study of controller on permanent magnetsyn - chronous motor. the permanent magnetsyn - chronous motor has many virtue such as simply structure and simle solidity etc. with this excellence. it has more and more uses in industry and agriculture. the idea of this paper is to control permanent magnetsyn - chronous motor system through vector control. to solve the problem of pid regulator, we use the fuzzy control and self adaptive pid

    本文設計的思路是採用轉子磁通定向的矢量控制技術，主電路採用spwm和交-直-交電壓型逆變器，其中spwm採用sa4828晶元直接產生，在控制器的實現方面，採用了tms320lf2407型dsp晶元作為主控板cpu ，實現了電流、轉速雙閉環的控制系統。
  13. 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。
  14. A half - bridge bi - directional current mode high frequency inverter was proposed, and the problem of unequal voltage of capacitance in this circuit can be resolved by adding a balance coil

    提出了半橋雙向電流源高頻鏈逆變器的拓撲結構，並對電路固有的電容電壓不平衡問題提出了解決方法，採用平衡繞組可以徹底解決電容電壓不平衡。
  15. In this paper, a mixed integer linear programming is proposed to optimize the infrastructure design and the reverse network flow

    本文提出一個混合整數線性規劃模型，優化廢舊電器逆向物流的基礎設施設計和逆向網路流量。
  16. Network design of reverse logistics for electronic returns

    電子類產品逆向物流網路結構設計
  17. The reverse logistics ' development in electronic commerce

    電子商務環境下逆向物流的發展
  18. Analysis on reverse logistic in b2c electronic commerce market

    電子商務市場的逆向物流分析
  19. Push - pull current mode hfl inverter also is composed of four power switches. the simulation and experiment of a 500va experimental prototype indicates that this circuit has the advantages of less components, simple topology, the ability of four quadrant operation and high efficiency. the inverter does not need the symmetry of the components " parameters and can be applied to dc to ac conversion with single low input voltage source

    推挽雙向電流源高頻鏈逆變電路也是由四個功率管組成， 500va的原理樣機的模擬和實驗研究結果表明，該電路元器件少、電路拓撲簡單、能夠四象限可靠運行、變換效率高，並不要求器件參數的完全對稱，適合於輸入電壓較低的場合。
  20. The half - bridge bi - directional current mode hfl inverter can realize dc to ac conversion in only one stage. the half - bridge bi - directional current mode hfl inverter succeeds to the advantages of full - bridge hfl inverter but uses fewer power switches, which reduces the costs of switches " driver circuit

    半橋雙向電流源高頻鏈逆變電路只需一級功率變換即可實現直流到交流的轉換，在繼承全橋高頻鏈逆變電路優點的同時，使用的功率管更少，功率管的減小同時降低了驅動電路的成本。
分享友人
分享到 Line

分享到臉書