特種直流機 的英文怎麼說

中文拼音 [tèzhǒngzhíliújī]
特種直流機 英文
special d. c machine
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 種 : 種名詞（姓氏） a surname
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 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...
  • 機 : machineengine
  • 特種 : special type; particular kind特種編碼 specific coding; 特種兵 special soldier; special troop; 特...
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  1. Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor

    在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。
  2. The paper analyzes the characteristic of aerodynamics with structure of helicopter propeller blade, dissertrates vortex theory and the theory about gliding air field which produce the power of helicopter propeller blade. at the same time it also deduce the method of computing the induced velocity produced by helicopter propeller blade with vortex theory. at last, an influcence to the spreading of sound is discussed

    並且將兩種定位演算法進行了比較，說明了優劣；結合直升機的結構分析了旋翼的空氣動力特性，論述了直升機旋翼產生拉力的滑流理論和渦流理論，結合渦流理論論述了直升機旋翼流場誘導速度的計算方法，在此基礎上分析了直升機旋翼流場對聲音傳播的影響。
  3. The button electrode is one that widely used in high energy rf accelerators, such as storage ring, and the bpm made of button electrodes has many merits like high accuracy, high resolution, resisting magnetic field, simple machinery, without magnetic core and low cost, etc. so we want to use the button electrode as the bpm in high current accelerators like the lia

    鈕扣電極束位置探測器是一種廣泛應用於射頻加速器儲存環等高能弱流加速器的一種束位置測量裝置，它具有測量精度高、解析度高、不受磁場干擾、機械結構簡單、無磁芯、造價低廉等特點。只是，至今未見有關這種束位置探測器在強流加速器（如，直線感應加速器）上應用的報導，如能將鈕扣電極束位置探測器應用於lia ，將是一件很有意義的事情。
  4. The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed

    本文對空芯動圈式直線同步電動機進行了深入細致的研究，內容包括： （ 1 ）採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式（集中電流法、分佈電流法） ，同時介紹了兩種永磁電機氣隙磁場計算方法（磁荷法，直接求解拉氏方程法） ，分析各種方法的優缺點，討論電機參數對氣隙磁密的影響； （ 2 ）介紹了單層同心繞組的布置方式，根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式，分析靜態力?位移特性； （ 3 ）建立空芯動圈式直線永磁同步電動機動態模擬模型，模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。
  5. By the way, a displaying system and a communicating system is added. this dissertation is divided into four chapters altogether : chapter one is the introduction, introducing the hore component and its important characteristic and putting forward the basic task ; chapter two introduce the principle of the auto - tracking system and respective parts of the auto - tracking system ; chapter three introduce the applications of auto - tracking system under static condition and dynamic condition and give out the experiment results ; chapter four introduced the displaying system, communicating system and the applicability of the auto - tracking system to other sensors

    本文共分為五章：第一章緒論中，介紹了霍爾元件及其一些重要特性，並提出了測量系統的基本方案；第二章詳細介紹了測量系統各部分的構成及原理，特別是對直流通道、溫度補償模塊和音圈電機為核心的隨動機構的論述；第三章介紹了實際系統在靜態測量和動態測量兩種模式下的應用及實驗結果；第四章介紹了系統的顯示功能和遠程通信功能並討論了系統對其它傳感器的適用性。
  6. In this paper, they are set forth at first that the kinds of computer - simulation of electronic devices, the development and the requirements of mosfet ' s model and the way of gain the models " parameters, the dc models have been bui it in chapter 2 and the models of big signals have been deduced in chapter 3, they are different from the equivalent circuit models in the traditional software pspice that they come from the numer i ca i - s i mu i at i on wh i ch is based on the essence equat i on, so the precision of simulation is enhanced ? mosfet ' s small signal models of low frequency, intermediate frequency and high frequency have been built in chapter 4 and chapter 5, although the equivalent circuit models in pspice are used for reference to bui id them, they have their own characteristics which are analyzed at a i i kinds of situations, so that the simulation software for mosfet can be written according them and it i s a i so benef i c i a i for us to catch the gen i us character i st i cs of mosfet and to d esign all kinds of applicable devices the correctness of the models is simply proved in chapter 6

    本文首先介紹了電子器件計算機模擬的分類、 mosfet的建模發展動態、對器件模型的要求以及模型參數的提取方法。在第二章中建立了mos晶體管在直流端電壓條件下的工作模型；第三章推導了mosfet的大信號模型，這兩類模型不同於傳統模擬軟體例如pspice中的等效電路模型，而是從模型方程出發，採用數值模擬的方法，提高了模擬的精度。第四章和第五章分別建立了mos晶體管低頻、中頻、高頻的小信號模型，雖然借鑒了pspice模擬軟體中用等效電路模型的方法，但是本文分別討論了準靜態和非準靜態時器件的本徵部分以及包含非本徵部分工作于低頻、中頻和高頻條件時的模型，可以根據這些模型編寫相應的模擬軟體，這樣在做器件的模擬分析與器件設計的時候，就可以利用模擬軟體逐步深入地分析器件在不同的條件下和器件的不同部分在工作時的各種小信號特性，有利於抓住器件工作的本質特性，設計出符合要求的各類通用和特殊器件。
  7. Full - bridge pwm motor drive a3952 is introduced in this paper, and an example is given for single phase dc brushless torque motor control

    摘要介紹了一種全橋脈寬調制晶元a3952的特點和功能及其在單相無刷直流力矩電機控制中的應用。
  8. Abstract : based on the analysis of the specialty of ca - ni accumulator, this paper proposes a computerized supervise and survey system, which is applied to supervise and survey the capacity, voltage, strong discharge and malfunction status real - time. according the concrete situation workers can dispose conveniently in time, and insure the direct current power supply working reliably

    文摘:在分析了鎘鎳電池特性的基礎上提出一種微機監測系統，用以對電池的容量、電壓、強放電及故障狀況進行實時監測，以便運行人員根據具體情況及時處理，保證直流系統可靠地工作。
  9. The paper discusses the work princinple of ldcsm, adopts singlechip as core control cell, puts forward two kinds of control schemes, analyzes and study the technique scheme, hardware and software design of each control system separately in detail, on the basis of the centralized winding electrifying trait and pulse stepping control method of two phase hybrid linear dc step motor ( hdclsm )

    論文在討論了直線直流步進電動機工作機理的基礎上，根據兩相混合式直線直流步進電動機（ hdclsm ）集中繞組的通電特點和脈沖步進控制方法，採用單片機為核心控制單元，提出了兩種數字控制方案，分別就每種控制系統技術方案、硬體電路、控制軟體設計等技術內容進行了詳細地分析和研究。
  10. Presents a simple method of compensating friction against the character of the nonlinear model of a brushless dc motor system which transfers the original system model to a simple linear model using the method of input - output linearization, and estimates the coulomb friction in the system in real - time using a nonlinear friction estimator, and then compensate the friction in the system using a friction feedforward, and concludes from simulation results that this method can effectively eliminate the influence of friction in brushless dc motor systems

    針對無刷直流電動機系統的非線性數學模型特點，提出了一種簡單的摩擦補償方法.該方法首先利用輸入輸出線性化方法將原系統模型轉化為一種簡單的線性模型，然後給出一種非線性摩擦估計器實時估計系統中的庫侖摩擦值，最後利用摩擦前饋補償方法對其進行補償.模擬結果表明該方法可以有效地抑制無刷直流電動機系統中的摩擦影響
  11. Dc motor has good mechanical character and is apt to accomplish varied control rules, and some theories about its controlling are still the basis of ac motor control

    直流電機具有良好的機械特性，易於實現各種控制規律，同時直流傳動控制系統的一些理論仍然是交流傳動的基礎。
  12. On the base of particular introduction of several ac servocontrol technologies, the system adopts the permanent magnet synchronous machine as the driver motor and the permanent magnet brush - less motor as the momentum balance motor. the hardware and software of the system have been designed and debugged on the cpu of special motor controller - tms320f240. the servo driven motor uses absolute situation photoelectric encoder as situation feedback device in order to assure the system precision

    論文在分析了幾種交流伺服系統的技術基礎上，對該系統驅動機構方案進行了認真的研究與論證，根據系統的要求和特點提出了永磁同步電機作為伺服電機，永磁無刷直流電機作為動量矩平衡電機的系統設計方案，完成了tms320f240dsp為核心的系統硬體的設計與調試。
  13. In fact, the outlet flow of vane in the hydroelectric set is non - uniform flow for a variety of possible reasons. the flow is unsteady flow relative to vane and blade, and it is the main factor that affect self - excited vibration and dynamic characteristic of guide vane and hydraulic - turbine, which affect directly the power set to run safely and stably

    非均勻來流相對于導葉、葉片必然是一種非定常流。這種非定常流造成導葉和轉輪葉片的激振，是產生導葉和葉片動應力，改變它們頻率的最主要因素，而導葉和葉片的動力特性直接影響水輪機的穩定性。
  14. A 150a dc tig welding machine is developed, using specially designed thyristor rectifier and ic control circuit, which is simple, reliable and of high quality

    研製了一種150a直流tig焊機，採用特殊的晶閘管主電路和集成電路控制技術，具有簡單、可靠和高性能的特點。
  15. The first, the principle of electrical regenerative braking and several control strategies for regenerative braking of this motor were discussed. the second, the control strategy, control logic and influential factors on recovering braking energy were analyzed for ev and hev

    首先分析了永磁無刷直流電機的再生制動原理及目前己有的各種電機再生制動控制策略的特點，爾後分析了電動汽車整車再生制動的控制策略、控制邏輯與制動能回收的影響因素。
  16. Because of its unique structure and outstanding characteristics, multiple - channel brushless dc generator which is made up of doubly salient electro - magnetic generator is a new kind of one. it can improve the reliability of the power - supply system for helicopters

    由於電勵磁雙凸極電機獨特的結構和優良的性能，所以由電勵磁雙凸極電機構成的多餘度無刷直流發電機是實現高可靠性直升機電源系統較為理想的一種新型無刷電機。
  17. Fristly, according to the non - linear characteristics of twelve - phase rectifier, the thesis gives the calculation model for a short circuit in the subway traction power supply networks which provides the academic foundation for the design of the setting values and the simulation of protection. secondly, the thesis designs the dc feeder protection and control of subway, and gives the principle of setting accordingly, after it analysizes the characteristics of electric current under tow load and short circuit and considers severel factors. to validate the rationality of the design, the thesis simulates the transient electric current under two work conditions ( starting and passing the insulation ) ahd short circuit

    其次，本文在詳細分析地鐵牽引負荷電流和饋線短路故障電流特點的基礎上，考慮了直流保護系統設計應注意的幾個因素，對地鐵饋線保護與控制進行配置，給出了相應的保護整定原則，並針對某一地鐵供電系統在詳細分析了兩種工況（機車起動與過分段絕緣）的電流暫態過程，得到了電流計算的數字模型，結合前面提出的短路模型，進行了地鐵饋線保護的模擬，經模擬表明本文的保護設計是合理的。
  18. The products range from fractional horsepower to 18, 700kw, from conversion of alternating to unidirectional current, from improved motor to conventional motor, which provide access to multiple choices for the general and specific application in manufacturing and treatment

    從很小功率到18 ， 700kw 25 ， 000hp ，各種款式的交流和直流標準，改良和常規的電動機為通用和特定用途的製造和處理需要提供了多種選擇。
  19. Doubly salient motor is a new kind of motor. more and more attention and research efforts are given to this new motor recently because of its particular structure and high electrical performance. this paper is devoted to a novel brushless dc starter / generator system, which use doubly salient motor as its starter / generator

    雙凸極電機是一種新型電機，其獨特的結構和優良的電氣性能正得到越來越多的關注和研究，本文主要對採用這種雙凸極電機的新型無刷直流起動發電系統的起動控制進行了研究。
  20. Abstract : the multifunctional inverter power sourcethe handy inverter welding, plating & charging manchine, developed with advanced inverter and micro - electronics control techniques, adopts “ half - bridge power expansion supply midpoint voltage autocontrol setting ”, and technically and effectively having solved inverter subvision of inverter power expansion circuit for leaning magnetism, reliability of high - power inverter setting, achives combination of constantcurrent and constantvoltage export, and realizes low - voltage dc and high - voltage ac double power supply

    文摘:運用先進的高頻逆變技術和微電子控制技術設計研製的逆變式多功能電源便攜式逆變焊鍍充電多用機，採用「半橋式功放級供電中點電壓自動控制調節裝置」 ，在技術上解決了逆變功放電路因偏磁而造成的逆變顛覆，有效地解決了大功率逆變器的可靠性問題；進行多種外特性的綜合設定，實現了恆流與恆壓輸出的合一；與傳統焊機相比，實現了開環和閉環狀態下都互不影響的低壓直流電瓶和高壓交流雙供電
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