繞組因數 的英文怎麼說
中文拼音 [ràozǔyīnshǔ]
繞組因數
英文
winding coefficient-
Powerformer have some changes in constract with the conventional generator ， subsequently it also have some new problems in order to have an economical ， efficient ， credible development and application the structure and the philosophy of electromagnetism of powerformer will be on speaking terms changes electrical design ， magnetism design ， thermal design and structural design are have some new changes above all ， the electromagnetism parameter and the harmonic magnetomotive force of powerformer are studied in this paper first ， it mainly utilizes analytics to deduce formula of slot leakage reactance it considers three instances ， including monolayer - slot ， multilayer isometric - slot and multilayer anisometric - slot then ， the analytics and the fem are utilized to calculate slot leakage reactance of stator winding of prototype of powerformer and compare their results second ， the theory of utilitzing fem to calculate the reactance of powerformer is simply introduced ， including stable reactance ， transient and subtransient reactance specially ， the saturated influence of the stable reactance is considered then ， the results are analysed final ， it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding then ， it mainly analyse harmonic magneto - motive force of stator winding through arranging various arrays of stator winding and observe their influence
基於上述原因，本文對powerformer的電磁參數以及定子繞組諧波磁勢進行了研究。首先是用解析法推導出powerformer定子繞組槽漏抗的計算公式，考慮了單層圓形半閉口槽、多層等半徑圓形半閉口槽和多層不等半徑圓形半閉口槽三種情況，並對powerformer樣機的定子繞組槽漏抗用解析法和有限元法進行了計算，並比較其結果；其次，簡要介紹了有限元法計算powerformer電抗參數的原理，包括穩態電抗、瞬態電抗和超瞬態電抗，對穩態電抗考慮飽和影響，對結果進行分析；最後，介紹定子繞組諧波磁勢對電機運行性能的影響並對定子繞組諧波磁勢進行了分析。然後通過對定子繞組進行不同排列來分析定子繞組諧波磁勢，看看繞組排列對諧波磁勢的影響。In this article, firstly the background of the textile trade conflicts within sino - us or sino - euro are introduced, thus learn that how to discern and dodge the foreign trade risks, how to choose the appropriate investment projects have already become one of the most important questions for exporting companies on foreign trade affairs well - known as high investment and high risk. so the main text makes a risk analysis qualitatively and quantitatively on a textile - exporting trading company from three angles of statistic 、 game theory and portfolio theory, which is the main content that we studied. firstly, the statistic article adopts data of the transaction closing price of the textile clothing index in shenzhen stock exchange at the end of each quarter as well as several other kinds of data reflecting the macro - economic changes, performs an empirical analysis of these data according to the theory of co - integration test 、 granger cause test and impulse response function of time series in economitric, and learn that the impact to ti is more obvious by the economic index reflecting local commodity price level and economic prosperity degree home and abroad, as well as the impact degree and the time lag degree, and knows the macro - economic risks faced by textile business enterprises ; after that by the game theory angle we analyze exactly the managing risks faced by one textile export corporation named beauty. from the game expansion chart the system arrangement between censor ways by exportation goal countries and exporting strategies by the exporting enterprises has been analyzed. involving the benefit assignment between them both the limited rounds and infinite rounds negotiations of cooperation games have been studied, and then country responsibility and the enterprise managing risks on foreign trade affairs and so on have been analyzed exactly ; in order to realize the investment multiplication in the certain degree to disperse the risk, the
本文首先介紹了中美、中歐紡織品貿易爭端的來龍去脈，由此可知在涉外貿易這種以高投入、高風險著稱的行業里，如何甄別和規避外貿風險、如何選擇合適的投資項目已經成為外貿企業的首要問題。因此，正文分別從統計學、博弈論和投資組合三種角度對涉外紡織品貿易公司風險進行了定性和定量的分析，這也是本文的主要研究內容。首先，統計學篇選取了深圳證券交易所行業分類指數?紡織服裝指數（ ti ）每一季度末的交易收盤價和若干種反映宏觀經濟變化的指標，利用計量經濟學中時間序列的協整檢驗、 granger因果檢驗和脈沖反應函數等理論做實證分析，從而得知反映國內物價水平和國內外經濟景氣程度的經濟指標對紡織板塊上市值的沖擊比較明顯，且可知沖擊程度和時滯度，進而分析出涉外紡織企業所面臨的宏觀經濟風險;接著，從博弈論的角度具體分析一家紡織品出口公司（ beauty ）的外貿活動所面臨的各種經營風險，該篇從博弈擴展圖入手，分析了出口目的國審查方式與本企業出口策略之間的制度安排;並圍繞雙方的利益分配，研究了有限回合和無限回合合作談判博弈，然後具體論述了國家責任和企業涉外經營風險等問題;在一定程度上為了實現投資多元化來分散風險的目的，投資組合篇從經典的markowitz模型著手，在一些特定條件的限制下，給出了一個相應的投資組合模型。Analysis for magnetic field of srm is very complicated since the flux waveforms in different parts of the motor vary with motor phase, stator pole and rotor number, also with the winding connections, etc, which results in the srm losses, especially iron loss calculation difficult. the temperature analysis due to the losses has become a study hot spot
Sr電機鐵心的磁通波形不僅與電機的相數有關，還與定、轉子齒極數、定子繞組連接方式等密切相關，從而使得sr電機磁場分析很復雜，復雜的磁通密度波形導致電機損耗特別是鐵損的計算非常困難。電機的損耗又會引起電機的溫升，因此高性能的sr電機的熱分析也成為目前的研究熱點。It is showed that the torque ripple is not only connected with the phase currents, but also with the other factors, such as the instantaneous phase emf ' s in the case of commutation, the angle of commutation and the parameters of the windings
從一個新的角度分析了繞組換相引起轉矩波動的原因，指出換相轉矩波動不僅與電機繞組電流有關，還與換相時相繞組感生電勢瞬時值、換相位置角、繞組參數等因素有關。From the viewpoint of system, such the basic theories of the modeling method as system dynamics, learning organization and system thinking are studied on the basis of the analysis of the status quo of management decision - making, as well as relevant model building blocks, modeling methods and modeling steps. taking advantage of modeling platform stella / ithink, some enterprise management decision - making modeling infrastructures are built based on anhui jianghuai automotive co., ltd., which include inventory controlling, manufacturing, pricing, shop controlling and etc. finally, based on the qualitative analysis of the strategy of mark down sale in auto industry the model of the pricing strategy in auto industry is developed, which is based on anhui jianghuai automotive co., ltd. the effects of the strategy of mark down sale are simulated and analyzed quantitatively
論文在分析國內管理決策現狀的基礎上，從系統的概念出發，研究了系統動力學、學習型組織理論、系統思考等基本理論以及系統動力學方法的建模構件（ block ） 、建模原理、方法與步驟；藉助建模平臺stella ithink ，以安徽江淮汽車股份有限公司為原型，設計構建了庫存控制、製造、價格和車間控制等企業管理模型功能子模塊（ infrastructure ） ；在定性分析國內汽車行業降價銷售策略的基礎上，設計構建了以安徽江淮汽車股份有限公司為原型的國內汽車行業價格決策模型，該模型圍繞產品價格、交貨提前期、市場份額、利潤、生產能力等關鍵因素，對降價銷售策略帶來的市場運作、生產管理、銷售發貨及庫存控制等過程的變化情況進行了模擬模擬，並通過一定的數據結果定量地說明了降價銷售策略將給企業帶來的結果。It then assays gas company of bailong group through different aspects of job analysis, enterprise value chains, organization evolvement and personnel inventory. and it defines the function of the different aspects in the human resource planning, establishes the human resource demand model for gas company of bailong group on those basic analysis. this demand model takes the driving factor method, which is the preferred method of nowadays enterprise, as the core to provide the thoughts of seeking industry characters and continual ameliorated human resource demand prognosticated method for gas company
圍繞該問題，從職位分析入手，研究用驅動因素法預測百龍集團燃氣公司崗位人員需求；進行百龍集團燃氣公司各發展階段業務活動內容分析，並應用其對崗位編制變化趨勢進行了預測；歸納出百龍集團燃氣公司組織演化圖譜，並應用其預測百龍集團燃氣公司中層管理崗位的編制；對燃氣公司價值鏈進行分析，著眼于依據經營目標預測所需人力資源，建立了百龍集團燃氣公司總人數確定公式；為了實現對人力資源供給進行準確分析，設計了百龍集團燃氣公司人力資源數據庫。They found two events showing the shortening of pulsating cycle and decaying of radiations intensity. the signatures matched theories of what scientists would predict to see. when matter is falling so close to the event horizon, it will be circling the black hole with increasing speed and its light will rapidly dim as it is stretched by gravity to ever - longer wavelengths
研究人員分析了極大量來自緻密天體天鵝座xr - 1的紫外線輻射，發現其中兩組數據顯示，輻射脈沖的周期隨時間縮短，而其強度則隨時間衰減至消失，這現象與一些物質在接近黑洞視界時繞著黑洞急促旋轉，放出的輻射因為重力紅移而衰減的情況相符。As a result of employing multilevel phase - shifted method with zig zag connection in transformer secondary, in the primary the current harmonics their orders are lower than 6m 1 are eliminated ( m is the number of power cell each phase ). in the inverter side because of using pulse shifting pwm control, the equivalent switch frequency of output is m times as high as one h - bridge, so the output voltage waveform of the inverter is near sine with less harmonics
對于整流電路，由於採用變壓器移相多重化整流，在理論上可以實現曲折變壓器一次繞組中低於6m 1次諧波電流相互抵消（ m為串聯單元個數） ；對于逆變電路，由於採用移相pwm控制方式，等效開關頻率提高m倍，因此輸出電壓接近正弦波，諧波含量較小。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 equation among peak factor, quality factor, switch initial angel is concluded. on the basis of the equation, peak factor curve has been programmed. the rms value, peak value and switch initial angel can be shown in the screen of computer
本文推導峰值系數與品質因數和合閘初相角的函數關系式，依此編制峰值系數曲線程序，利用對品質因數和合閘初相角的控制可使每個繞組都受到規定峰值的作用。In the numerical simulation of hypersonic chemical nonequilibrium flows, species density may become negative at the beginning of calculation, chemical stiffness is the main reason that affects the calculation ' s stability and convergence
摘要高超聲速三維化學非平衡繞流流場的數值模擬中，在計算初期容易發生組元密度出現負值的非物理現象，另外源項的剛性是影響計算穩定性和收斂速度的主要原因。分享友人