換流機 的英文怎麼說
中文拼音 [huànliújī]
換流機
英文
converter-
This thesis firstly introduces new demands of aerial product logistics support under high - tech war and some defects of traditional logistics support, and puts forward a kind of system model of aerial product logistics support following data - sharing of cals, and emphasizes detm. secondly it sets forth application of step and xml in the ietm, researchs conversion of xml schema and relation schema, and simply researchs mapping of xml and express. afterword, a based - xml framework of info - transfer between different platform are presented, according to this framework, the author establish a archetypal system of helicopter information query system based xml and dbms
本文首先介紹了現代高科技戰爭條件下對航空產品維修保障的新要求，概述了傳統的後勤保障技術的不足，遵循cals的數據共享的理念，提出了航空產品維修保障系統模型，重點研究了互動式電子技術手冊；接著分析了step標準和xml技術在製作互動式電子技術手冊中的應用，重點研究了肌模式和關系模式之間的相互轉換，初步研究了xml和express語言之間的映射關系；然後，提出了基於xml的一種解決航空產品信息跨平臺傳遞的解決方案，給出了該方案的具體實現流程和詳細的通訊協議，並開發了基於xul和數據庫的某型號直升飛機的信息查詢原型系統。They may be citric acid, monosodium glutamate, borax, ammonium sulphate, compound fertilizer, piece of radish, bean, less, seed, mine reside and sugar, in chemical, pharmaceutical, foodstuff, grain, mine and so on industries
物料自進料口進入機內，在激振力作用下，物料沿水平方向拋擲向前連續運動，熱風穿過流化床孔板向上穿過同物料換熱后，Icoke points could also be used to experience on - line games such as street basket ball, or redeem other digital gifts through icoke site
此外，他們還能夠用icoke積分享受其他數碼娛樂項目，集音樂體育娛樂游戲聊天等目前年輕人熱衷的潮流和文化，並有機會在可口可樂www . icoke . cn網站上換取豐富的數碼獎品。In the paper, on the basis of research of static state and transient state in the scr and series connection valve circuit, the high voltage scr changing current valve device has been developed for ac - dc - ac high voltage commutatorless motor. the series connection valve circuit has been designed and simulated. the hardware design and software programming of trigger pulse system and monitoring system in the photo - electronic - photo fashion has been completed
無換向器電動機在火電廠等工礦企業的電機調速節能領域中有十分廣闊的應用前景，本文在對晶閘管元件和串聯閥電路的靜態特性和動態特性研究的基礎上，研製了用於交直交電流型高壓無換向器電動機的高壓晶閘管換流閥裝置，進行了串聯閥電路的設計和模擬，完成了電光電方式的觸發脈沖系統和監測系統硬體設計及軟體編程，並進行了裝置的實驗調試。A commutator - brush combination is used as a mechanical rectifier to make the armature terminal voltage unidirectional and also to make the mmf wave due to the armature current fixed in space
通過使用換流器電刷的組合作為一個機械整流器以使得電樞的端電壓為單方向的同時也使得由電樞電流所產生的磁動勢在空間是固定的。Thaw settlement cause negative friction. this paper base on the thought of " initiative cooling ", aim at three problems existing in common concrete pile used in frozen soil, a new type of pile is proposed to overcome the disadvantages of the classical pile used in frozen soil. pile body within active layer is fluted and refilled with porous materials such as gravels and ballasts, convection will be occur and then thermal exchange inside porous material in winter while only heat conduction exists in summer, as a result the soil around flutings will be cooled, so the top line of permafrost will be drive up
本文基於「主動冷卻」地基的思想，以及針對凍土地區普通混凝土樁存在的三大問題，提出了一種新型樁的設計思路，運用數值模擬試驗手段對其冷卻機理與加固機理進行了系統研究，即在凍融活動層的深度范圍內，在混凝土樁身的表面刻槽，修築完時槽內填充碎石、塊石等多孔介質，通過外界大氣溫度的自然波動下多孔介質在冬季時存在的對流換熱機制，而在夏季只存在熱傳導，來達到主動冷卻樁周凍土和抬升凍土上限的目的。Electrical traction - rotating electrical machines for rail and road vehicules - part 1 : machines other than electronic convertor - fed alternating current motors
電氣牽引.有軌和道路車輛用旋轉電機.第1部分:除電子換流器供電的電機以外的機械The electrical damping within the whole subsynchronous frequency range is calculated. the impacts of the unit interaction factor between hvdc and turbine generator, the dc power level, the firing delay angle and the parameter settings of hvdc controller on the have the potential danger of subsynchronous oscillation
在整個次同步頻率范圍內，計算得到了系統電氣阻尼，並詳盡地分析了同步發電機與hvdc的耦合程度、直流輸送功率水平，換流閥觸發角大小以及控制器參數等因素對系統電氣阻尼的影響。3 、 the single - phase laminar flow and heat transfer has been calculated by different discredited scheme in helical tube and the results are very in accord with the obtained experimental data
3 、採用不同的差分數值離散格式，對螺旋管內單相層流流動換熱進行了數值計算，深入了解螺旋管內單相流動及強化換熱機理，其計算結果和已有的實驗數據非常吻合。The method was used to analyze the mechanism for enhancing heat transfer by way of using numerical analysis and can be used to study how to apply the field harmony theory to spirally fluted tube strengthen heat - transfer
本文在場協同理論指導下進行了強化換熱機理探討，利用數值分析方法，從分析流場與溫度場的協同配合關系入手，研究場協同理論在螺旋槽管強化傳熱中如何應用問題。Prof brian bridges said, there are few opportunities for korea - watchers to get together in hong kong. lingnan has gradually established a network of scholars and others who are interested in korea and these conferences provide an important venue, arguably unique in hong kong, for them to exchange ideas with experts from the two koreas and from around the asian pacific region. the conference was made up of three sessions, namely, south korea today, security situation surrounding the korea peninsula, and two koreas and the asia pacific region
嶺大亞洲太平洋研究中心副主任畢傑志教授prof brian bridges指出，中心於二零零三年起每年就兩韓情況舉辦研討會，為南北兩韓學者提供一個非正式的交流平臺，並與各國及各界的專家學者交換意見嶺大將繼續透過經已建立的關系網路，為關注兩韓動態的人士，提供更多的交流機會。My major responsibility is to take care of the outgoing and incoming students, making sure that they get their offer fast and sound
我的主要職責是負責交換生的送出和接收工作，確保他們能得到及時和滿意的交流機會。Abstract : this paper deals with the simulation result analysis of three phase synchronous generator with rectified output with stator y connected, as well as with stator connected. the curves of overlap angle, displacement angle and power factor with load are presented, and the tendency of these curves are also described
文摘:對整流負載時凸極同步發電機定子繞組及y聯結模擬結果進行分析，繪出反映整流特性的換流重疊角、位移角以及功率因數隨負載變化曲線，並對變化趨勢進行分析。The main works are organized as follows : based on the switching function method and time domain simulations, the small disturbance transfer a characteristic through the converter is analyzed. because of the modulation effect of the converter, the small disturbance in the shaft of turbine generator will induce ac voltage component with the same frequency as the disturbance on the dc side. and the resulted ac current on the dc side will have the similar frequency shift when transfers to the stator of the generator
主要內容包括： （ 1 ）基於開關函數法和模擬分析，研究了機組轉子上次同步頻率的小擾動，在hvdc交直流兩側響應的頻率特性- - - -轉子上的小擾動經直流換流器調制后，將會在系統直流側感應出與擾動同頻率的電壓分量；直流側電流擾動反映到交流定子側，也將發生頻率偏移。Converter - fed motor
換流器供電電動機In data communication, a device capable of electronically reviewing amounts of data and translating the data into a machine readable form
數據通信領域中經常使用的一種電子設備，用於觀察鏈路上的數據流量，並把這些數據轉換成機器可讀形式（以便進行傳輸） 。Besides, the converters have unmodeled dynamics. so the traditional controller for hvdc based on the classical control theory can not meet the requirements in practice. although, pi controllers are widely used in the hvdc systems, they have high sensitive responses to random disturbances, low robust performance, and can not solve some problems in power systems, such as unmodeled dynamics, nonlinear uncertainties
直流輸電線路中的換流器具有很強的非線性，系統的運行工況隨時都會發生改變，系統擾動發生的地點、類型及嚴重程度具有隨機性；此外，換流器還含有未建模動態部分，這些因素使得基於直流輸電系統準靜態模型的常規控制器設計方法常常不能很好地滿足系統的實際要求。A novel index named comprehensive unit interaction factor is proposed to quantify the torsional interaction in an ac system with multiple hvdc converters
（ 5 ）提出了一種衡量多換流站系統機組扭振作用的新指標一綜合機組作用系數。The most popular control strategy of pm motor is to apply the phase current according to the rotor position properly
永磁電機比較流行的控制方法是根據轉子位置檢測器的信號來切換電機各個相的電流。First, the dynamics characteristics of the heat - exchanger unit is analyzed carefully by using the knowledge of the fluid dynamics and heat transfer etc., and makes some reasonable simplicities and assumptions. so it establishes the mathematical model of the working process of the heat - exchange unit, and applies the recurrence parameter estimator to identifying and proving
本文首先綜合應用流體力學、傳熱學等方面的知識，分析了換熱機組的動力學特性，通過合理的簡化和假設，建立了換熱機組工作過程的數學模型，並使用遞推參數辨識器對其主要參數加以估計和驗證，從而得到換熱機組的carma （受控的自回歸滑動平均）或carima （受控的自回歸積分滑動平均）模型。分享友人