飽和參數 的英文怎麼說
中文拼音 [bǎohéshēnshǔ]
飽和參數
英文
parameter of saturation-
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。Third, according to an example, the influence on soil displacement stress etc under harmonic vibration load induced by infiltration coefficient and loads frequency variation is studied numerically in dissertation. finally, the difference of layered saturated soils consolidation between rectangle and harmonic vibration loads is studied in this dissertation
再次,以數值方法研究了簡諧荷載作用下成層飽和地基二維biot固結的一般規律,同時還研究了固結情況受滲透系數,頻率等參數影響的規律。Changes of the longitudinal and transversal wave velocities in different directions and the rock velocity anisotropy as a function of confining pressure have been studied under laboratory ultrasonic frequency for shale and sandstone with marked foliation, which had been saturated by the fluids with different viscosity kerosene and vacuum pump oil and salinity distilled water, 50000
利用不同黏度煤油和真空泵油不同礦化度蒸餾水50mg l和150mg l的nacl溶液的流體對頁巖和具有明顯層理的砂巖進行飽和,在實驗室超聲頻率下研究樣品不同方向縱橫波速度以及各向異性參數The factors limiting the frequency band of the wide - band amplifier are introduced. through analyzing the effects of the intrinsic parameters and parasitical on the frequency characteristics, a method of improving fr of mosfet by using short channel device and making mosfet work at the saturation region through raising vgs is put forward ; the effects of different kinds of circuit configurations on the frequency characteristics and the junction voltage on the voltage pattern circuit, current pattern circuit and frequency characteristics are analyzed. according to the linear theory of transconductance which is applied in the bit circuit, the current pattern amplifier circuit, current transfer circuit and output circuit which consist of mosfet and the wide - band amplifier composed of them are put forward
介紹了限制寬帶放大器頻帶寬度的因素,通過分析mosfet的本徵參數、寄生參數對頻率特性的影響,提出了採用短溝器件、使mosfet工作在飽和區、抬高柵源電壓等提高mosfet特徵頻率的方法;分析了不同電路組態對放大器頻率特性的影響、節點電壓對電壓模電路、電流模電路頻率特性的不同影響,根據應用於雙極晶體管電路的跨導線性原理,提出了採用mosfet構成的電流模放大電路、電流傳輸電路、輸出電路以及由它們所組成的寬帶放大器,獲得了良好的頻率響應。For c. violaceum, it is moderate treatment that all the corresponding parameters have the maximal value. but it still was maximal for leaf biomass, lar, ramose number of stem, stem biomass and umbrella number of flower. and the rgr of drought treatment in january exceeded the saturation treatment largely, but the difference among treatments was small in april
川明參與明黨參和峨參相應的生長參數基本以中度水分條件下最大,但葉生物量、 lar 、葶分枝數、葶生物量和花傘數仍以飽和水分條件下最大;而1月份乾旱條件下的rgr遠高於其他兩種水分條件, 4月份則相差很小。For a - early f type ms stars, stellar chromospheric activity decrease with stellar rotation period, but increase with rossby number ; for m type ms stars, stellar chromospheric activity increase with stellar rotation period and rossby number, and stellar chromospheric activity reach saturation at large color index ; for the ms stars between mid - f to m type, stellar chromospheric activity decrease with stellar rotation period and rossby number
A ?早f型主序恆星的自轉周期和恆星對流區的隨色指數的分佈明顯地影響著這些恆星的色球活動行為。而m型主序星的色球活動水平基本上隨自轉參量的增大呈上升趨勢,並且m型主序星的色球活動水平在色指數較大時趨于飽和。The parameters contain impulse noise, memory effect, scan correlated shift, coherent noise, random noise, dropped lines, inoperable detectors, saturated detectors, mtf, system resolution
輻射性能參數包括脈沖噪聲、記憶效應、掃描相關偏移、一致噪聲、隨機噪聲、丟失行、不可操作探測器、飽和探測器、調制傳遞函數、系統解析度。The time headway distribution of the simulation system based on this model can be tuned by two simple parameters, so it can accord with different time headway distribution rule in condition of practical unsaturated traffic
基於該模型建立的模擬系統,憑借兩個簡單的參數來調節不同車速的期望車頭間距,使車頭時距分佈規律符合交通未飽和時車頭時距的具體分佈情況。The normalized factorial moments ( nfm ) show good scaling properties in isotropical partition of phase space ; the nfm ' s projected into three directions versus the. partition. number appear, to be saturated curves with similar in scaling behavior ; and the three hurst exponents are very close to unity. the levy - stability holds for the q = 2 ~ 5 order moments in 3 - dimensional phase - space
發現:三維歸一化階乘矩( nfm )的分佈呈現出很好的標度特性;階乘矩在各個方向上的一維投影呈現出彼此十分相似的飽和曲線,且特徵參量hurst指數都接近於1 ;高維相空間各階階乘矩的分佈滿足l vy穩定性的要求。The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是逆系統方法的一類,並結合具體課題推導出的模型方程將dfl理論進行了擴展,使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程,此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的數學模型,並將擴展的dfl理論應用於此模型系統,結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高電力系統的暫態穩定性,並且在電力系統遭受小干擾時同樣具有良好的調節性能。Analysis on unsaturated seepage calculation parameter
非飽和滲流計算參數分析In this paper, the author studies the sand response under the vibrating load carefully to provide the vibrating grouting method with good parameters. at first, the sand is studied through the dynamic tri - axial experiment, in which we use a computer - controlled system which is advanced in our country
本文著重進行振動力作用下飽和砂土地基的響應分析,從有限元計算、解析分析和工程經驗三個角度進行研究,三種方法各有優缺、互為補充,以期為施工工藝提供良好的施工參數。Fourthly, with the finite element program, the author analyzes the relationship between the load magnitude or frequency and range of breakage or pore pressure. this can provide appropriate parameters for the method of vibrating grouting. fifthly, adopting the compressible porous medium, the author adduced dynamic theory of liquid saturated porous medium to analyze the displacement and force in the sand when there is dynamic load below the earth surface
基於連續介質力學的混合物理論建立的多孔介質理論和動力控制方程,假設砂土滿足各向同性並處于彈性小應變狀態,豎向振動力將在飽和砂土內部產生三種波,分析了這些波的彌散曲線和特徵衰減曲線,從波傳播的角度,研究了振動力參數和土性參數對振動范圍的影響。The important parameters, namely the ph of solution, the concentration of 4 - bapta and the supersaturation of cacco3, were systematically studied
對其中重要的參數(溶液的ph值、 4 - bapta的濃度、碳酸鈣的過飽和度)對晶體形貌和結晶狀態的影響進行了系統的研究。3. the study on the parameters that affect the seepage field of unsaturated slopes based on the existent program of 3 - d saturated - unsaturated seepage, mainly including ( 1 ) the combination of different rainfall intensity, duration, and type ; ( 2 ) the essence of medium, e. g
利用已有的三維飽和-非飽和滲流程序對在降雨條件下影響非飽和邊坡滲流場的參數進行研究,主要包括: ( 1 )不同降雨強度、降雨歷時、雨型等降雨類型組合; ( 2Propeller is a critical part of crystallizer, the geometry shape and dimension of which determine the flow field in the crystallizer
攪拌槳是攪拌釜式結晶器的重要部件,攪拌釜內飽和溶液的整體流動形式與攪拌槳的葉剖面形函數和槳的結構參數密切相關。Research shows : change of temperature & pressure of sand rock results in prominent change of seismic p and s wave velocity and dynamic & static modul and seismic attenuation of sand rock. change of pore liquid character and saturation results in change of seismic p and s wave velocity and attenuation of sand rock
研究表明:巖石所處的溫度壓力條件的變化將導致縱橫波速度、動彈參數和衰減的顯著變化:孔隙流體性質(含水或油、氣)及飽和度的變化將引起縱、橫波速度、衰減的明顯變化。Determination of the saturation parameters by application of the sealed core data
應用密閉取心分析資料求取飽和度參數The power angle characteristics are acquired and compared with the unsaturated curves. it is concluded that the stability limit of the power angle is less than 90 degree. reactive power regulating curves are calculated and compared with those curves when saturation effect is not considered, the result is that u type curves are deviated to the right
通過對同步發電機各種運行曲線的計算,在已有文獻的基礎上更進一步分析了鐵磁材料飽和以及磁場畸變對同步發電機運行特性和參數的影響;求出了空載特性曲線和零功率負載特性曲線,在不同的電樞電流下計算得到的波梯電抗不同;求出了功角特性曲線,與不計飽和時的功角特性曲線相比較,功角穩定極限小於90 ;求出無功調節曲線,與不計飽和時相比較, u型曲線向右偏移。The design strategy investigated is based on a sliding surface that only contains the error between the reference input wheel slip and the actual wheel slip. the design strategy uses continuous switching, in the form of a saturation or a ambrosino function, to reduce chattering in the system response
研究的設計策略基於只包含參考輸入車輪滑移率和實際車輪滑移率間誤差的滑模面,用飽和函數或ambrosino函數形式的連續切換函數來減小系統響應的抖動。分享友人