電力變換機 的英文怎麼說

中文拼音 [diànlìbiànhuànjī]
電力變換機 英文
power converter
  • 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...
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 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
  • 機 : machineengine
  • 電力 : [電學] power; electric power電力變阻器 power rheostat; 電力捕魚 electrofishing; 電力潮流 directio...
  1. And the interfaces have analog input, analog output and digital input / output. we have used differently cards, such as pc - 6330d a / d card, pcl - 728 d / a card based isa bus, ipc - 5375 i / o card and so on. in addition, we select micro - stir switches and pressure sensors as sensor elements to inspect the system and choose relays and induction valves to control the bicycle pump and the motor

    總線採用isa內部總線；介面主要有模擬量輸入介面、模擬量輸出介面、開關量輸入輸出介面等，課題分別選用pc - 6330d型a d板卡、基於isa總線的型號為pcl - 728的d a板卡、型號為ipc - 5375的i o板卡；另外，課題選用了微動式行程開關、壓力變送器作為傳感元件檢測系統，選用繼電器、電磁控制換向閥實現對氣缸、電機的控制；採用vc + + 6 . 0編制控制軟體，實現了纖維鋪放技術的計算機控制。
  2. In the present dissertation, friction - induced noises emitted by a flat specimen rubbing against another flat specimen or a ball specimen under reciprocating sliding are studied. the detailed observation of the scars is conducted by means of a scanning electrical microscope ( sem ), laser scanning microscope ( lsm ), optical microscope and profilometer. the dynamic state variables are analyzed in detail using the discrete wavelet transform

    使用電子掃描顯微鏡（ sem ） 、激光掃描顯微鏡（ lsm ） 、光學顯微鏡和表面輪廓測量儀等設備對摩擦噪聲發生的區域進行了詳細的觀察和分析，運用小波變換技術對摩擦噪聲狀態下的動力學變量進行了深層次的研究，應用matlab simulink語言對摩擦系統進行了振動動力學模擬，系統地研究了摩擦噪聲的形成機理。
  3. The core products include telecom power systems, board mounted power supplies, custom power supplies, ups, precision air conditionings, outdoor shelter solutions, automatic transfer systems, network power protection products, vrla batteries, lv & precision distribution cabinets, centralized power and environment monitoring systems, dc power systems and ac motor drive inverters used in electric utility power systems

    艾默生網路能源產品涉及通信電源、印刷板板裝電源、客戶定製電源、 ups 、機房專用精密空調、戶外一體化通信機櫃、自動切換開關、動力網路保護產品、蓄電池、低壓配電和精密配電櫃、動力設備及環境監控系統、電力操作電源、交流變頻調速器等領域。
  4. In the brief introduction to geographical information system ( gis ), this dissertation proves that by combining reliable management with gis technology, presents a method which built the power structure model and math calculation model by using spatial data in a good interface between computer and user. this dissertation makes a number of target for calculating the distribution system, mainly aimed at circumstances which have an effect on power station repair, switch breaker, type of t connection, and double lines supply via the usage of system reliability calculation. at the same time, it provides the projected estimatio n when power station or transmission line will be added into the power system, and furnishes the theoretical information that the professional needs for power structure programming, design and equipment management

    通過建立輸變電設施管理信息系統（ mis ） ，真實地反映出油田電網輸變電設施的運行管理現狀，為網路可靠性計算提供可靠的計算依據；在簡述地理信息系統（ gis ）技術的基礎上，論證了可靠性管理與電力gis技術結合的可能性，創立了在簡潔的人機圖形界面下利用空間數據建立網路結構模型及可靠性計算模型的方法；通過建立網路可靠性計算系統，進行了計及變電所檢修影響、切換開關、 t接點及雙回線供電情況下的可靠性指標計算分析，對油田電網及變電所（線路）的改（擴）建方案、增強性措施及接入系統的可靠性給予了工程評估，為電網規劃、設計及日常的設備管理提供分析決策依據。
  5. Efficient to lose fat, adopt micro - computer technology to make the vibration strongly effect on the abdomen, which part with most fat of the body. inner - desighed strong motor effect on the organism directly. unique auto change direction mode, makes the full dimension vibration of the organism

    迴旋塑身腰帶運用微電腦技術，將強效振動裝置直接作用於脂肪最為集中的腹背部，內置的強有力的電動機直接作用於肌體，產品獨有的大幅度的水平移動自動變換方向運動模式，使肌體大范圍全方位共振，同時加快身體血液循環，微電腦控製程序可自動逐步增強產品運動力度，使用過程中自動轉換運動方向。
  6. In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source

    摘要基於李家峽水電站雙排機組振動的現場試驗研究，並且針對傳統頻譜分析方法傅立葉變換（ fft ）對于非平穩信號已力不從心這一缺陷，利用小波分析方法在時域和頻域上同時具有良好的局部化性質，通過對開停機這一典型非平穩過程信號進行小波及小波包分析，將其分解到不同頻帶內，獲取微弱信息和提取優勢頻率，並對其作振源分析，得出開停機初始時刻因水流不穩均出現強烈的振動現象，且低頻段信號能量最大，開停機過程水流脈動壓力和尾水渦帶擺動是引起定子基礎振動的主要原因。
  7. 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。
  8. This thesis chooses b spline wavelet that adapts to the analysis of power system signal, and uses the wavelet transformer to analyze the magnetizing inrush current and inner fault current. a transformer microcomputer protection was designed in this thesis, and in the base of intermission angle principle, a new criterion was established, which pierces through the traditional method with accurate measurement of intermission angle, but analyses the wave by wavelet transform. this criterion is lower in hardware, so it will be realized in the existing hardware

    本文選擇適合電力系統信號分析的b樣條函數作為母小波，對勵磁涌流和內部故障電流進行小波分析，並設計微機型變壓器保護基本配置，在以往間斷角原理鑒別勵磁涌流的基礎上，突破傳統精確測量勵磁涌流間斷角的方法，直接對信號小波變換后的波形進行分析，建立一個新的鑒別勵磁涌流判據，該判據對硬體要求不高，可以在現有一般硬體平臺上實現；並編寫以b樣條函數為母小波的小波變換判據演算法程序。
  9. Semiconductor power convectors - adjustable speed electric drive systems - general requirements - part 1 : rating specifications, particularly for d. c. motor drives

    半導體功率變換器.速度可調式電力驅動系統.一般要求.第1部分:直流電動機專用額定值規范
  10. Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly

    但是高性能的交流調速系統實現很困難，這是因為交流電機是多變量、強耦合的非線性系統，不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題，其基本思路? ?應用坐標變換將三相等效為二相，實現定子勵磁電流分量與轉矩電流分量之間的解耦，達到對交流電機磁鏈與電流分別控制的目的，交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步，計算機技術飛躍發展，高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中，促進矢量控制迅猛發展，日趨成熟。
  11. A modern power electron power component igbt ( insulate - gate bipolar transistor ) is used as the main power switch component of power converter. it takes 80c196mc single - chip as core processor

    電源變換器的功率開關器件採用現代電力電子功率器件igbt （ insulategatebipolartransistor ，絕緣柵雙極型晶體管） ，控制系統以80c196mc單片機作為控制核心。
  12. In general, most of recent wind power generation systems are connected to the local or global power grid via an electrical power conversion system, which mostly consists of two converters namely generator - side and grid - side converters

    一般來說，大多數最近開發的風力發電系統都是通過電能變換裝置與地區電網或者全國性電網相連。此種電能變換裝置包括發電機側變換器和電網側變換器。
  13. It also builds the mathematic model of all section of vscf ac exited wind power generation system on a - b - b and d - q coordinate system by the coordinate commutation technology. the thesis gives the characteristics of torque, active power, reactive power and the steady - state analysis of it. it proves that the capability of wind generator is determined to slip, the amplitude and phase of rotor voltage, the phase dispatch between stator voltage and rotor voltage

    並分析了交流勵磁風力發電機作變速恆頻運行時的工作原理，闡述了與同步發電機、異步發電機的不同之處，分析了其能量平衡關系，在坐標變換技術的幫助下，詳細推導了交流勵磁發電機在a - b - c坐標系和d - q坐標系下的數學模型，分析並模擬了其有功和無功特性、轉矩和功率調節特性、穩態運行和機械特性，證明了發電機的性能由轉差率、轉子電壓的相位和幅值、定轉子電壓相位差所決定的。
  14. The basic principle of hydraulic system of tb80k trimming is set forth. the changing process of engaging pressure is analyzed and studied, the engaging pressure is produced in transmission controlled by electro - hydraulic proportion when shift gear is switched ; the hydraulic control system used in remote control is studied and designed applied with electro - hydraulic proportional control theory and on the basic of the hydraulic characteristic of tb80k trimming dozer, more and more electro - hydraulic reform projects and assumption are present

    本文闡述了tb80k推耙機液壓系統的基本原理；對電液比例控制變速箱換檔在各檔之間切換的接合壓力變化過程進行試驗分析研究；應用電液比例控制理論，結合tb80k推耙機液壓系統結構特點進行遙控液壓控制系統研究和設計，並提出了多種電液改造方案和設想。
  15. The basic agc roles include : ( 1 ) making generation follow the load change, and holding system frequency on fix value ; ( 2 ) dispatching power to each area, and holding exchanging power on fix value between each area

    其主要功能是響應負荷和發電的隨機變化，維持電力系統頻率為規定值，響應各區域分配系統發電功率，維持區域間凈交換功率為計劃值。
  16. The principle of ac - dc - ac locomotive is that transformer transforms the high single - phase ac voltage from contact system to lower ac voltage first, then rectifier transforms this ac voltage to steady dc voltage, finally converter transforms this dc voltage to three - phase vfvv ac voltage as the voltage source for asynchronous machine

    交?直?交型電力機車系統的原理是：先將從接觸網獲得的單相交流高電壓經變壓器降壓后，再經整流器變換為平穩的直流電壓，直流電壓經逆變器變換為三相交流電壓，供給機車輪對上的牽引電機。
  17. The hard work and creative ideas in this paper as follows : understanding on faults of pc ' s pd, analysis of pd inside and outside pc, design of monitoring device, recognize of how to improve accurate of tgs " s measurement, wavelet - transform introduced for signal ' s processing and how to write programs and do simulations of wavelet - transform in matlab5. 3 here etc

    論文主要工作和有新意的內容在於對電力電容器故障的理解，對它內外放電的機理分析，對監測裝置的設計，對如何提高tg占值測量計算精度的再認識，小波變換的引入以及具有針對性的在matlabs . 3下的模擬分析，包括對模擬工具的熟悉與使用。
  18. He specialises in power electronic converters for variable speed windmills and medium voltage drives designs for ac motor drives from, high speed micro turbine and variable speed gen - sets, innovative circuits for ups applications, traction applications in trains, trolley - buses and trams, battery driven vehicles, automotive drives and fuel cell applications

    施雷伯先生的專長是研究變速風力發電機的電力電子變換器和用於交流電動機驅動的中壓電力電子設計，從高速微型燃氣輪機和變速機組，用於ups應用的新型電路，歐列車中的牽引應用，無軌和有軌電車，電池驅動汽車，汽車驅動和燃料電池。
  19. If such additional devices as are added, recording mechanism, and electric mapping device, then recording, remote transmission, alert, automatic control, etc. will be realized

    若增加附加裝置，如記錄機構、電氣變換裝置、控制元件等，則能實現壓力的記錄、遠傳、報警、自動控制等。
  20. Now it has been used in many fields, such as transportation, aeronautics, electronic household appliances and industries. the modelization and simulation of srd, pseud - sliding mode control ( psm ) and the driver system based on dsp tms320lf2407a are studied in this thesis. the main tasks include : the nonlinear model of the srd is established, the control methods such as pwm is emulated and analyzed

    開關磁阻電機調速系統（ srd ）將開關磁阻電機，現代電力電子變換技術以及控制技術結合為一體，兼有異步機變頻調速系統和直流電機調速系統的優點，目前已應用於牽引運輸、航空航天、家用電器、通用工業等各個領域內，具有廣泛的應用前景和強大的市場生命力。
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