模變換器 的英文怎麼說
中文拼音 [móbiànhuànqì]
模變換器
英文
mode converter-
Sliding - mode current control of three - phase ac dc converter
變換器的滑模電流控制Based on the thorough investigation of the post - regulation and efficiency in multiple output switching - mode power supplies, an optimal combination topology for multiple output switching converter is presented in this thesis, which is consisted of forward converter with active clamp ( fac ), synchronous rectification ( sr ) techniques and magnetic amplifier technique ( magamp )
本文通過研究分析近年來多路輸出開關電源輔助輸出電壓調節和提高效率的方案,面對開關電源朝著輸出低電壓大電流方向發展的趨勢,提出多路輸出開關電源新的拓撲優化組合模式? ?有源鉗位正激變換器、同步整流技術、磁放大器。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。However, the result of the simulation, in which all the parameters are kept constant except the primary and secondary inductance, is that 3 % higher conversion efficiency can be achieved in ccm than in dcm
但對輸出功率和繞組電阻相同時逆變電路模擬結果表明, ccm的效率比dcm提高了三個百分點;試驗結果說明盡管ccm的繞組電阻比dcm的大,變換器效率仍提高了1 . 5 。The principles and the characteristics of digital control method in phase - shift full - bridge converter are discussed. the small - signal model are built
本文詳細論述了全橋移相zvspwmdc - dc變換器數字控制的實現方法,建立了其數字控制閉環小信號模型。Then, we present a schematic of buck converter by using sliding mode control and then design a circuit based on it
然後提出了降壓buck變換器的滑動模實現方案,並設計了滑動模控制的buck變換器的電路實現方案。Circuit simulation demonstrated that the dynamic and static performances of buck converter controlling by sliding mode are better than that of pwm converter
電路模擬表明,滑動模控制的buck變換器的許多動態性能和靜態性能都優于pwm控制的buck變換器。The temperature range is - 30 ~ 80. the topology of the step - up dc / dc converters and its basic principle is first analyzed in this thesis. then based on the conventional pfm control scheme, a discrete pulse frequency modulation is presented and the state space average model related to the ccm ( continue current mode ) and dcm is established
然後在傳統的脈沖頻率調制方式的基礎上,分析了一種離散脈沖頻率調制方式,並建立了這種調制方式下升壓型dc / dc變換器在電流連續( ccm )工作模式和電流斷續( dcm )工作模式的狀態空間平均模型。( 3 ) modeling of the asymmetrical half bridge converter in the thesis, a small average circuit model of asymmetrical half bridge converter power stage is established by method of state space averaging. in term of it, a system model of total converter is founded. the characteristic of stabilization and dynamic is analysed and the compensator is designed basing of it
( 3 )不對稱半橋dc dc變換器的建模分析採用狀態空間平均法建立了不對稱半橋變換器功率級的小信號平均電路模型,在此基礎上建立整個變換器系統模型,對系統的動態特性和穩定性進行了分析並設計了補償器。Third, this thesis analyzes the angle - control theory based on half bridge converter, and proposes a new way to find the optimized angle. simulation is performed to verify the results. then, this thesis introduces the hardware and software design of the digital control system of doubly salient electro - magnetic motor, which mainly discusses the speed and current loops and angle optimization control
再次,本文介紹了角度控制與電機轉向的關系,並對基於半橋變換器的電勵磁雙凸極電動機換相角與相電流及輸出轉矩的關系進行了理論分析和模擬驗證,提出了優化電勵磁雙凸極電機換相角的方法。Aimed at design index of input power 1. 5kw, most output rotate velocity 300rpm, and rating output rotate velocity 150rpm, considering factors of angle and ratio of transmission, on the basis of kinematics simulation, author optimized the kinematics parameters. in this paper, author has made some analysis and study to the primal assembly condition of transformer ' s sequential action in theory, designed structure dimension of the input and output transformer, and verified the corresponding strengthen. further, the structure, which is to key transmission components of velocity control system of the speed regulator, has been designed based on meeting operational sensitivity, precision and self - locking
本文針對輸入功率為1 . 5kw ,最大輸出轉速,額定輸出轉速的無級變速器的設計要求,並考慮到傳動角及變速比等因素,在運動學模擬的基礎上,對運動學參數進行了優化;本文對變換器連續作用的初始裝配條件進行了理論分析與研究,對輸入、輸出變換器作了結構尺寸的設計,並進行了強度校核計算;本文還對變速器調速系統中主要傳動構件在滿足操作的靈敏度、精度、自鎖性的基礎上進行了結構設計;最後採用workingmodel3d軟體,進行虛擬樣機的計算機輔助模擬設計及運動學和動力學計算。The thesis discussed a parameter extraction program for the mosfet level1 model. in the analysis and design of circuit, at first, the thesis described the system function of the new dc - dc switching converter. then several sub - circuits of converter ic such as oscillator, over - temperature shutdown circuit, auto - restart counter circuit and control circuit were completely discussed
在電路設計中,本文首先分析了開關電源電路的基本拓撲結構和psm調制模式,接著對開關電源變換器進行了系統的原理分析並設計了總體框圖,然後詳細設計了振蕩器電路,熱保護電路,自動重啟計數器電路和主控門邏輯等子電路並進行了功能模擬。Research on modulation strategy of matrix converter to reduce common - mode voltage
用於抑制矩陣變換器共模電壓的零輸出換相策略Ogy method is applied to control the chaos exhibited by current - mode controlled boost dc - dc converter, as its chaotic regime has been established in this paper
本文還使用參數微擾方法控制電流控制模式boost變換器在連續電流模式下產生的混沌行為。Based on the analysis of simulation, the main and control circuit of the converter has been designed
在模擬分析的基礎上,對變換器的主電路及控制線路進行了設計。The control strategy and the way of filter design are discussed. this two - stage converter keeps the advantages of the single - stage ppfc scheme and improves its several disadvantages. the simulation and experimental results verify the superiority of the two - stage converter scheme and prove out that it is suitable for the fuel cell power generation system
該兩級式變換器保留了上述單級式ppfc方案的基本優點,同時改善了其存在的幾點不足之處,具有相當的優越性,適用於本文所研究的燃料電池發電系統,文章最後通過模擬和實驗進行了原理驗證。Switch states of mc are obtained when the output voltage error function is minimized, thus the optimum combination of switch states is derived for the closed - loop control of mc
根據最小誤差函數確定矩陣變換器開關模式,實現了系統閉環控制時開關狀態的優化組合。In the radiation aspect, the features o radiation sources in power converters are discussed. the radiation models of dm current and cm current in cables and radiative characteristics of cables and high frequency current loops in the converter are also discussed
在功率變換器輻射emi方面,系統地討論了功率變換器各輻射源的特點,重點分析了共模電流和差模電流在電纜中的輻射模型,功率變換器中電纜與高頻電流迴路的輻射性能。The operating principle of the converter is analyzed, and the design procedures of the main circuit and control circuit are presented. the loss of the converter is discussed including power devices, rectifier diode, magnetic components and etc., and the mathematic model of loss distribution and theoretical efficiency are obtained by means of mathcad
本文還對變換器的損耗進行了詳細分析,包括開關管、快恢復二極體、變壓器和電感等元器件的損耗機理及其損耗計算方法,並用數學軟體mathcad建立了損耗的數學模型,給出了損耗分佈情況及變換器效率。Then on the basis of those, a model of software radio receiver is given. operations are determined using hardware whose configuration is under software control. finally, the circuits are realized with simulation in order to prove the discussed schemes
然後建立了軟體無線電接收機的數學模型,盡可能的簡化射頻模擬前端,將模數數模變換器盡量靠近天線,在對信號充分數字化的基礎上依靠軟體來定義無線電的各項功能。分享友人