磁可變電感器 的英文怎麼說

中文拼音 [cíkěbiàndiàngǎnqì]
磁可變電感器 英文
magnetic variometer
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 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...
  • 感 : Ⅰ動詞1 （覺得） feel; sense 2 （懷有謝意） be grateful; be obliged; appreciate 3 （感動） move; t...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  1. Multiferroelectric magnetoelectri materials have a spontaneous polarization that can be reoriented by an applied electric field, a spontaneous magnetization that can be reoriented by an applied magnetic field. these materials have been exploited as transducer, waveguides, switches, phase inverters, modulators, etc. which also find a lot of technological applications in radioelectronics, optoelectronics, microwave electronics in instrumentation

    這類材料同時具有鐵電和鐵磁材料的性能可以應用到傳感器，波導器件，轉換器，相位倒相器，變頻器，調節器等，在無線電電子學，光電子學，微波電子學等領域的發展具有重要意義。
  2. Compared to the traditional converter, the new one can transform electric power from a static part to a rotary part without an electrocircuit connection, which makes the contactless power transform come true. one application of this converter is to supply a steady and regulable excitation circuit for synchronous generator by integrated its second winding with the motor while its primary winding is static. the thesis gives two methods of the rotating converter design paticullarly : flyback and fullbridge, and explains how the circuits are designed

    通過理論分析、模擬分析和實驗驗證，得出這兩種旋轉變換器都能進行感應電能傳輸，但它們的傳輸功率是不同的，反激式旋轉換器最大隻能傳輸幾十瓦功率的感應電能，因此只能用在感應電能傳輸較小的場合，或者信號傳輸的場合;而全橋式旋轉變換器能傳輸較大的功率，可用於電機的新型無刷勵磁方案中。
  3. Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method

    在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。
  4. The stator of aceg is connected to the grid and the three symmetrical excitation windings in the rotor are fed by converter. the magnitude and frequency and phase and phase sequence of excitation voltage can be controlled, so the magnitude and position of excitation mmf as well as the speed of rotor can be controlled. therefore, acegs have superior performances by contrast with conventional synchronous generators and induction generators, such as upstanding stability, power generation of variable speed constant frequency ( vscf ), adjusting active power and reactive power independently, and absorbing lag reactive power deeply

    交流勵磁發電機的基本結構與繞線式異步電機相同，其定子側接電網，轉子上採用三相對稱分佈的勵磁繞組，由變頻器提供對稱交流電勵磁，且勵磁電壓的幅值大小、頻率、相位、相序都可根據要求加以控制，從而可以控制發電機勵磁磁場大小、相對于轉子的位置和電機的轉速，使得交流勵磁發電機具有良好的穩定性及轉速適應能力、獨立的有功與無功調節能力和較強的進相運行能力，性能超越傳統同步發電機和感應發電機，因而有著廣闊的應用前景。
  5. Then, the complementary fem based on the introduction of t - q is verified by the case study. finally, combining the complementary fem and direct method, analyse the electromagnetic field and parameter of controllable reactor. the obtained results show that the complementary fem can be applied with satisfactory accuracy in the computation of parameters of electromagnetic devices

    第四，基於t ?變量的互補有限元法，在混合激勵源情況下，分析計算了可控電抗器的磁場和電感參數，並通過與實測電感量的相互印證，進一步證實了互補有限元法在電磁參數計算中的應用價值。
  6. With the best modulation strategy which was found on condition that it must have largest energy transfer ratio, smallest current ripple of the inductor, and realizing zvs of each switches, the converter overcomes the drawbacks presented by the conventional zvs fb converter, such as high voltage stress of each switches, large current ripple of the inductor, and severe parasitic ringing on the rectifier diodes, so it can get higher efficiency, faster respond speed, and wider application area. the operation principle of the proposed converter is analyzed and verified by a 3kw, 50khz experimental prototype. experiments and research results show that the scheme of the tl topology derivation is reasonable, adjusted modulation strategy makes some other severe problems in conventional topologies easy to solve or makes the converter more competitive

    研究結果表明，本文提出的三電平拓撲變換方案合理，針對各種三電平拓撲尋找到的控制策略可以解決變換器存在的某些問題或使變換器表現出更突出的優勢：例如針對單管直流變換器三電平拓撲的控制策略可以減小電感的設計值，針對推挽直流變換器三電平拓撲的控制策略可以實現開關管的軟開關、解決變壓器偏磁問題等，針對全橋直流變換器三電平拓撲的控制策略可以減小電感的設計值、實現開關管的軟開關等。
  7. 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。
  8. The effects of the error of ct and vt, hysteresis and load variation to short - circuit reactances are discussed also. by using error analysis and simulation analysis, this paper discussed the feasibility in engineering

    論文分析了互感器誤差在幾種情況下對短路電抗測量結果的影響；通過變壓器建模，分析了磁滯特性和負載變化量大小對短路電抗測量結果的影響，驗證了該方法在工程應用上的可行性。
  9. In the paper, the principle and actualizing means of spatial vector control have been systemically discussed and the control software has also been designed. the magnitude of both the rotor flux and the current in torque component have been estimated by using a flux observer, which is developed based on field orientation control principle. the results show that the observer has a good feature due to its speed being calculated without speed sensor or additional hardware

    本文對矢量控制的原理、控制方法以及控制實施策略進行了較為系統的分析與研究，利用速度間接觀測理論，建立了異步電機的磁通觀測器，電機的定子磁通和電流的轉矩分量可以通過磁通觀測器估算出來，從而得到電機的轉速，並由此建立了異步電機無速度傳感器矢量控制的理論數學模型和相應的控制演算法，在此基礎之上，利用工程中常用的電機專用dsp晶元tms320lf2407作為處理器，對異步電機進行變頻調速控制。
  10. Two multi - objective optimal problems are solved by using the proposed algorithm. the numerical results demonstrated that the proposed algorithm is a robust vector optimizer for engineering multi - objective design problems

    最後將該演算法運用於一個變頻調速系統中輸入濾波器的電感線圈尺寸優化，證明該方法可以有效地運用於變頻調速系統的電磁兼容設計。
  11. Some methods for overcoming these disadvantages are investigated as follows : first, using shield and magnetic circuit to shorten the sensor length and enhance the signal magnitude ; second, improving the data acquisition system to intensify the capability of fine defect detection ; at last, adopting digital signal processing technology such as homomorphic filter, wavelet transform and error correction to ensure detecting reliability

    本文結合有限元模擬和實驗方法，研究了改進遠場渦流技術性能的幾種方法，即：採用電磁屏蔽、磁路進行傳感器優化設計以縮短探頭長度、增大信號強度；改進信號調理電路以提高細微缺陷檢出能力；利用同態濾波、小波變換以及誤差修正等數字信號處理技術確保檢測結果的可靠性。
  12. In this dissertation, the author has accomplished the simulation of the dtc system and analyzed the corresponding results. the software of the digital control system, in which the digital signal processor ( dsp ) is used, has also been designed in the thesis. the direct torque control scheme is studied in the paper, and the simulation models of hexagon flux control system and approximate circle flux control system are presented based on the application of matlab / simulink

    本文對異步電機直接轉矩控制變頻調速方法進行了研究，採用mathworks軟體公司為matlab開發的系統模型圖形輸入和模擬工具simulink對直接轉矩控制的六邊形和近似圓形兩種定子磁鏈控制方法進行了模擬，實現了有速度傳感器的直接轉矩控制系統的構建，從理論上證明了這兩種方法的可行性。
  13. Sectional specification for adjusters used with magnetic oxide cores for used in adjustable inductors and transformers

    用於可調電感器和變壓器中磁性氧化物磁芯的調節器分規范可供認證用
  14. Now, the reported fgs can measure many physical parameters including temperature, strain, stress, displacement, pressure, torsional angle, twist moment ( moment of torque ), accelerated velocity, current, voltage, magnetic field, frequency, density, coefficient of thermal expansion, trembling etc. some of the fiber grating sensing systems have been put into practical use

    目前，已報道的光纖光柵傳感器可以檢測的物理量有:溫度、應變、壓力、位移、壓強、扭角、扭矩（扭應力） 、加速度、電流、電壓、磁場、頻率、濃度、熱膨脹系數、振動等，其中一部分光纖光柵傳感系統已經實際應用。
分享友人
分享到 Line

分享到臉書