斬波系統 的英文怎麼說
中文拼音 [zhǎnbōxìtǒng]
斬波系統
英文
chopper system-
Principle and design of a chopper applied in smes
超導儲能系統用斬波器的原理及設計At last, this paper also design a small capacity buck - boost type chopper system, pointing out the problems and difficultes of the ac modulation voltage system in the future
最後，對小容量斬波控制buck - boost電路調壓系統作了初步的設計，指出了本課題研究調壓系統有待解決的一些問題。The control method was introduced and the hardware of the controller was designed. the controller uses the 89c52 and 89c2051 as the main control unit and produces the on and off and angle signal of each phase. combined with protecting signal and current chopping signal, it can control the igbt on and off
介紹了srd的控制方式和本系統所採用的控制策略，對控制器的硬體電路進行了設計，控制器以89c52和89c2051雙cpu為主控單元，採用模糊調節，發出相通斷信號和角度信號，並和電流、電壓等保護信號以及斬波信號相結合，實現對主功率元件的通斷控制。So, we need to study other novel chopper structure for loosening the losses in switching and developing the efficiency and reliability
因此，有必要採用新型的斬波器來降低斬波器熱損耗，提高系統的效率和工作的可靠性。High frequency switching technique is becoming more popular in the power electronics area, the high frequency power transistors are applied in the buck - boost type chopper system. the characteristics of power mosfet and insulated gate bipolar transistors ( igbt ), some new kinds of power swithing devices, are deeply studied
高頻開關技術是當今電力電子技術發展的方向，本文研究的buck - boost斬波系統中採用了高頻功率器件，所以本文對新型開關器件? ?功率mos場效應管[ mosfet ]和絕緣門極晶體管[ igbt ]的特性進行了初步研究。In order to obtain high resolution of the instrument, the effect of input noise of amplifier must be decreased. hereby, an amplifier circuit based on the chopping theory was developed for it
由於該微摩擦測試儀要求的分辨力很高，而運算放大器本身的輸入噪聲嚴重影響系統的解析度，為此設計完成了基於斬波放大原理的放大電路。This dissertation is focused on the theory of intelligent control and control system design for srm. firstly, this thesis analyzes pwm control method of srm and its convert circuit characteristics, and designed the control system based on tms320f240 dsp controller
在介紹了sr電機及其控制系統設計研究的發展和現狀之後，本文首先分析了srm的pwm控制方式以及兩相斬波式主電路特性，並基於高速數字信號處理器（ dsps ）在電機控制方面的優勢，設計出基於tms320f240的srd實驗系統。System takes intel 16 micro - controller as the core controller and adopts advanced ipm module that replaces the silicon as inverter so that the output waveforms have been heavily improved, which compare with the waveforms after chopping of silicon, which not only reduces the loss of the transformer, but also lengthens the light life - span
系統採用先進的智能功率模塊（ ipm ）取代以往的可控硅作為功率變換器件，以intel16位單片機為核心控制器採用ac - dc - ac變換技術使輸出的波形較可控硅斬波后的波形有很大的改善，這不僅降低了變壓器的損耗而且延長了燈的壽命，提高了系統的運行質量。First of all, the main - switches of the zvs chopper have zero - voltage turn - on and turn - off totally, so it has little switching losses. for this, the efficiency of the chopper can be improved
首先，零電壓軟開關斬波器的主功率器件完全實現了零電壓開通和關斷，所以它的熱損耗很小，減小了系統的熱損耗，提高了系統的電源變換效率。The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80c196kc to organize the system frame, desiging the minimum system of single - chip microcomputer, multifunction i / o interface circuit, relay switch circuit, keyboard and display circuit, multifunction digital setting interface circuit and so on, utilizing the hso and hsi interface circuit which are owned by this single - chip microcomputer exclusively and its powerful command system to realize dual - degree switch control, automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control, on the basis of above, the system also have the function of running according to the setting steps and the frequency, voltage and current to display through the led, etc
系統基於斬波恆流驅動技術，按照頂層設計思想，採用先進的專用細分控制電路和功能強大的80c196kc單片機來組建系統構架，設計了單片機最小系統、多功能i o介面電路、繼電器切換電路、鍵盤顯示電路和多功能數字設定介面電路等，利用該單片機獨有的hso和hsi介面及其強大的指令系統，實現了雙余度混合式步進電動機的余度切換控制、自動定位、零位自動搜索、停機鎖定、數字化頻率設定、自動調頻變速控制、細分方波切換控制，在此基礎上，該系統還設有按預置步運行、 led頻率電壓相電流顯示等功能。Abstract : thermochromic liquid crystal infrared imaging system includes a thermochromic liquid crystal infrared sensor, a chopper, controller, a light source, lens, liquid crystal phase plate, optical system, a charge coupled device ( ccd ) array, and microprocessor. the operation and performance of the thermochromic liquid crystal infrared imaging system are described
文摘:紅外攝像系統包括熱色液晶紅外傳感器、斬波器、控制器、光源、透鏡、液晶相位推移器、微處理器、光學系統、 ccd陣列等，描述了熱色液晶紅外攝像系統的工作原理和特性。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） 。This thesis analyzes pwm control method of srm and its converter circuit characteristic, and designed the hardware control system based on tms320f240 dsp controller. the control system includes detector circuit, protection circuit, control and man - machine interface circuit, which makes full use of dsp recourse for high reliability and simplified the construction of system
隨后介紹了srm功率變換主電路的兩相斬波方式，並以ti的tms320f240dsp控制器為核心設計了實驗系統，針對srm的特點，充分利用了dsp的硬體資源，設計了相應的外圍硬體檢測、保護、控制及人機介面電路，使控制系統結構緊湊、可靠性高。The simulation system includes the optics, chopper control, driving signal design, image data acquisition based on vi technology and image processing including image difference, non - uniformity correction ( nuc ), image intensification and dynamic display, etc. according to the corresponding theories, the author designed all these software modules. the research on the pyroelectric imaging technology through this experiment is of great importance to practical thermal imaging system in the future
根據熱釋電焦平面成像原理，用sspa器件在可見光條件下設計了基於虛擬儀器技術的熱釋電凝視焦平面成像模擬系統，包括光學系統、斬波控制、驅動信號設計、基於虛擬儀器技術的圖像數據採集和相關的圖像處理技術，如圖像差< wp = 5 >分、非均勻性校正、圖像增強和動態顯示等。This paper puts emphasis on dynamic simulation based on switched reluctance drivers ' s ( srd ' s ) nonlinear model, and study of fuzzy control for srd. based on switched reluctance motor ' s linear, nonlinear model, the dynamic simulation model of srd ' s is built respectively. the phase current, phase torque, total torque and speed of srm in current chopping control ( ccc ) and angular position control ( apc ) are calculated respectively with this simulation
本文在分析sr電機線性、準線性、非線性模型的基礎上建立了四相（ 8 / 6極） sr電機調速系統（ srd ）動態線性、非線性模擬模型，分別對電流斬波控制方式（ ccc ）與角度位置控制方式（ apc ）下sr電機相電流、一相轉矩、合成轉矩及角速度進行了模擬。Today, mw wind generators substitute 600kw generators gradually and become the popular units of international market of wind power generation. the trends of units are variable speed constant frequency and large - scale and pitch control. there are many different generators which are variable speed constant frequency generator. in this paper the unit is fully - fed magnet wind turbine generator. the magnet wind turbine generator grid - connected inverter is the key component of connected system. the main function of this component is inverting the dc to three - level volage and connecting the electric net
實現變速恆頻發電的方法眾多，本文研究的是較常用的一種方案。該方案採用直驅永磁風力發電機通過變頻器直接連接到電網。永磁風力發電機並網逆變器是並網發電系統的核心部分，其主要功能是將經過整流、斬波升壓后的直流電逆變成三相交流電，並送入電網，實現並網。This system is on the safe side and higher efficiency, because of using the field oriented controlled modem technology and the boost - buck converter of dc, the closed loop control of voltage, current and speed, and combining with many ways of safeguard and reducing power wasting
通過應用先進的電壓矢量控制和直流升降壓斬波技術，採用電壓、電流和轉速的閉環控制，結合多種保護措施和降低功耗方法，使得該系統具有工作安全可靠、功耗低等優點。分享友人