調節常數 的英文怎麼說
中文拼音 [diàojiéchángshǔ]
調節常數
英文
regulation constant-
Gathering fuzzy technique and model - identifying technique to processing research, fuzzy model - identifying technique, a intersecting science, has been come out, which has become hoto in this thesis, based on deeply researching the fuzzy unit - identifying and complete analysis on data of measuring well of the chandqing wushenqi district, the method of constructing self - adapting multi - dimension non - liner subjection degree function has been created without precedento based on the extraction of routine measuring well character parameters, and for adopting self - adapting method to carry through character compression, the model has been improved the performance and enhanced the convergence speed and sorted precision of the algorithm o the relation of measuring well information and the oiliness & gassiness of sandstones is fuzzy ? in the thesis, the law of max subjection degree has been studied and improved, and proved preferable effect in the practical application
論文在提取一些常規測井特徵參數的基礎上，採用自適應方法對各變量多項式進行優選，減少了特徵參數間的相關性，突出了類別間的差異性，從而優化了模式的質量，提高了分類的精度。測井信息和砂體的儲集性之間的關系是帶有模糊性的，論文對模糊「最大隸屬原則」進行了研究和改進，並在實際應用中取得了較好的效果。論文成功研製了「自適應」的演算法和軟體? ?即通過對正確回判率的比較，然後對參數進行調節的辦法，可將模式「訓練」到最佳狀態。The solid-state controller has an electronic timer which provides an extremely short time base.
在固定調節器中，有一隻電子定時器，它能提供極小的定時常數。On account of the uncertainty existing in the nonlinear ship responded model, we design a dynamic adaptive ship steering controller by using adaptive backstepping. after deducing the update law of the unknown constant, we choose the controller gains to guarantee the closed loop system and the control signal global boundedness
由於船舶非線性響應模型中含有未知常參數的不確定項，因此採用自適應backstepping的方法，選擇參數自適應調節律，設計動態的船舶航向控制器，實現在線控制。It must indicate that the theory of equilibrium and disequilibrium are not opposite, and should integrate them, equilibrium is the objective of the economy operation, and disequilibrium analysis is the available means of realizing the objective of equilibrium. firstly, the paper had a brief introduction on the theories of disequilibrium and real estate markets, and confirmed the choice of the disequilibrium econometrics model on the basis of the characteristics of the estate market of changchun city. the paper made sure that the disequilibrium of changchun city ’ estate market showed not only the disequilibrium problem of the total support quantity, but the problem of the structure and system of market
跟據模擬的結果，本文發現當前價格機制開始失靈，市場調節的手段以數量調節為主，為恢復市場機制的正常運行，宏觀調控成為必然，配合對市場結構性非均衡的分析，發現在宏觀調控時應注意對非住宅市場的傾斜，結合非均衡度這個指標的計算，本文指出了長春市房地產市場今後的非均衡取向，通過宏觀調控警戒線設置模型的應用，指出政府宏觀調控應以直接調控為主，即採取行政和法律手段來規范市場行為。The reason is the tumor cells escape the immunosurveillance whose mechanism is very complex. in general, the explanation is based on two aspects, one is that the tumor cells can passively escape the host immunosurveillance when the host immnue state is low and another is tumor cells can actively secrete factors to down - regulate immune function. the purpose of this paper is to study the mechanism of immunosuppression by tumor cells using a model rnimicing in vivo microinviroment
腫瘤逃避免疫監視的機制非常復雜，但總體上可從宿主免疫狀態及腫瘤細胞等方面來解釋，在宿主免疫狀態低下時，腫瘤細胞可以被動地逃避免疫監視，但是腫瘤細胞也能主動地釋放一些活性物質，下調免疫殺瘤作用，該作用主要通過兩個途徑，即對免疫細胞功能的調節和免疫細胞數量的調節。Cot1s i deri ng that t he exte ] - ioi - in t el - ference mai n1 y comes from t 11e sea fl o v l11elj i t i s un ( lel ' - i1 t el ", thi s nfr ) j { j1t i ; fi + lk, 7 : f } itft, ? } { t ! : i / cx pal7er veri fj ed t he st i ~ ol1g 1 ~ oi ) ust ness of th is fuxzy va1 - iilb1 e st l ' uctul ' c control method against the mode1 uncertainties and external disturhances, such as the variat ions of the sea current i s sdeed and direct ion, ancl it a1 so coinpared it se1f wi t. h the l > ji ) contl ~ o1 ler in comnlon use and the regu1ar variable structure contro11 er
論文分別討論了潛器縱向，橫向和航向三個子系統在不同條件下的控制問題，考慮到該潛器潛航時外界干擾主要來自海流，驗證了模糊變結構控制方法對模型參數時變及海流速度、方向變化的強魯棒性，同時將該控制器跟實際工程中常用的pid控制器和常規的變結構控制器的控制效果進行比較，並結合實際情況，將該控制器同縱傾調節相結合進行控制以更好地滿足實際工程的需要。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。The results show that the water - level controlling system has wide stable domain and stable condition is easy satisfied and the domain is larger when the forebay time constant tq is bigger
分析表明，水位調節模式下調節系統的穩定條件容易滿足，穩定域很大，前池時間常數t _ q大的更有利於調節系統穩定。This dissertation majorly researchs and designs full digital dc driving system with fuzzy control. it makes a scheme argumentation firstly, analyzing the pid algorithm and fuzzy control algorithm the ordinary digital pulse trigger algorithm and the double remainder method of pulse trigger in detail, and fuzzy control and the double remainder method are put forward to settle the under - mentioned problems, namely, the new viewpoint and the task having finished in this dissertation as follows : ( 1 ) in rder to overcome the influence of dc motor ' s parameter changing with time and nonlinear on the control system performance, this dissertation adopts fuzzy control as outside regulator and pi control as inside regulator in double regulators of the full digital dc motor driving system design ;. ( 2 ) aiming at the pulse trigger reliability of the ordinary d igital pulse trigger being low and leaking the pulse or the order of pulse confusion, this paper adopts the double remainder algorithm with short response time high pulse trigger reliability good adaptability and anti - jamming ; ( 3 ) this dissertation adopts tms320lf2407 which has good performance as major control chip this chip has power function with fast calculation capability, and accomplishes the software and hardware design in the dc motor driving system with fuzzy control ; ( 4 ) this dissertation also puts emphases on anti - jamming in hardware and software ; ( 5 ) after having designed the sample of full digital dc motor driving system with fuzzy control, a lot of experiments are performed to verify the performance and settles problems during experiment. the result of experiment proves the feasibility of design
首先進行了方案論證，對模糊控制演算法和數字pid調節演算法、觸發脈沖的一般演算法和雙余演算法進行了詳細地研究分析，提出應用模糊控制和雙余法解決下述問題，即該論文主要的新見解和所完成的工作： （ 1 ）為了克服直流電機參數時變性和非線性因素對控制性能的影響，本設計中，雙閉環調速系統的外環採用模糊控制，內環採用pi控制，使系統在一定范圍內對直流電機參數變化和非線性因素影響有自適應能力； （ 2 ）針對常規數字觸發器演算法中觸發脈沖的可靠性不高，經常出現漏脈沖或是脈沖混亂的情況，本文採用雙余法，該演算法具有響應快，可靠性高，具有良好的適應性及抗干擾能力； （ 3 ）本設計中採用了速度快、功能強的tms320lf2407作為系統的主控晶元，應用該晶元完成系統的軟硬體設計： （ 4 ）本文對系統抗干擾的軟硬體措施進行了重點研究； （ 5 ）設計了具有模糊控制的全數字直流傳動系統原理樣機，並進行了試驗驗證，對試驗過程中出現的問題及時解決，最終實驗結果證明設計是可行的。The dtc system is a high - performance ac driving system. but conventional speed controller in dtc system is ped adjuster, which ca n ' t make the system have enough quick response, the ability to restrict the noise and strong robustness to the parameters of the system
作為一種高性能的交流調速系統，在直接轉矩控制系統中，速度調節器通常都採用pid調節器，使得系統的快速性和抗干擾能力及對系統參數擾動的魯棒性不夠理想。The thesis is from guizhou aero - engine research institute, member of china aviation industry corporation i. researchers in the institute remodeled wp13aii engine into wp13b engine, resulting in the changing of the operating point and thus the abnormity of anti - surging regulator. the author aims to probe into the relation among the parameters of the anti - surging regulator, of the engine and of the main fuel regulator, ravel the failure and show how to modify the anti - surging equipment by accomplishing the modeling and simulation of the process
本課題來源於航空工業總公司第一集團貴航發動機研究所，該所在將wp13a發動機改型為wp13b發動機後由于工作點變化導致發動機防喘切油過程異常，本課題的研究目的就是通過對發動機防喘切油過程進行建模和模擬，來探討防喘調節器各結構尺寸與發動機及調節器各參數之間的關系，以及wp13b發動機防喘切油故障的原因，並給出防喘裝置改進設計的具體措施。To accept the current signal from high negative voltage circuit, the analog ground is raised to a certain positive voltage, which makes it possible for the signal amplitude to be compressed at the same time of its polarity reversion. a pi control program special for laser gyro current control is brought forward according to the conventional pid control method, in which the control signal is figured out corresponding to the difference between the sample and the reference value by turn of proportion - short step integral - long step integral. and at the end of this paper, a comparison of system performance on different conditions is made and the key elements influencing system performance are educed
利用集成a / d 、 d / a轉換器的新型晶元aduc824 ，實現了電流（電壓）采樣?數據處理?電流控制的閉環控制結構；地電位的抬升解決了a / d轉換器對負高壓迴路電流采樣時的輸入范圍匹配問題；控制信號反相的同時進行幅度壓縮，使得輸出調整電壓的解析度提高；根據常規的比例?積分?微分（ pid ）調節模型，針對陀螺系統的特性，給出了一種可以滿足系統要求、據采樣值偏差大小進行的比例?大步長積分?小步長積分、分層次比例?積分演算法；不同條件下系統穩流性能的對比、分析在論文最後給出，並據此找出了決定該系統穩流精度的關鍵因素，提出了系統的改進意見。A comparative study and simulation of different control schemes, for the brushless motor variable - speed system, is presented. the simulation results show that, with the outer speed loop based on conventional proportional - integral controller, the dynamic performance of the system is not content, while with intelligence controller, the performance improves, and with variable - structure control with sliding mode, the system response influenced slightly by the vary of the system parameters
本文還對無換向器電動機雙閉環調速系統的不同控制方式進行了模擬比較，結果表明：採用常規的pi轉速調節器，系統的動態性能不是很好；採用簡單的轉速環智能控制器，系統的動態性能能得到一定改善；採用轉速環滑模變結構控制器，系統的響應特性受系統參數變化的影響較小，具有優異的動態性能。There are many plants that have the character of time - varying, large delay, large inertia in the process of production of modern power station such as the superheated steam temperature, the reheated steam temperature, the water treatment of boiler and the load regulation. some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control. it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control, optimal control ， decoupling control and predictive control. and these control systems have large calculation and bad character of real time in general. these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station. now the generator units are developing towards large capacity and high parameters. many new kinds of generating electricity means are coming into being. the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict. the new control means are in bad need to control them effectively
現代電站的生產過程中存在過熱汽溫、再熱汽溫、鍋爐水處理、負荷調節等許多大遲延、大滯后、特性時變的對象，它們中有些還是具有強非線性特性的對象或多變量耦合系統，採用常規的pid控制手段很難取得良好的控制效果。若應用現代控制理論中的自適應控制、最優控制、解耦控制、預測控制等控制手段，則需要建立被控對象的數學模型，而且往往控制系統的計算量大、實時性差。這些缺點使其很難滿足實際生產過程的需要從而極大地限制了其在現代電站中的應用。Finally, the rules used to design the induction motor and set the inverter v / f curve are summarized to improve the stability of the system movement in the forth part of the dissertation, three measures are brought forward to eliminate the system low frequency oscillation. the first measure adopts pulse based dead time compensation to suppress the oscillation. as second measure, considering the motor and inverter as an integration, the discontinuous space vector modulated strategy named dpwm3 is proposed for the first time to suppress the oscillation
措施一是在總結常用死區補償方法的基礎上，提出脈沖為基礎的死區時間補償法（ pbdtc ）對死沈陽工業大學博士學位論文區進行補償，抑制系統的低頻振蕩;措施二是從逆變器與電機的機電一體化配合更加完善的角度，首次提出採用不連續空間矢量調制策略dpwm抑制系統的低頻振蕩;措施三是通過對系統中電機參數的調節，達到抑制系統低頻振蕩的目的;最後進行了實驗驗證。Electrorheological fluids ( erf ) consists of a suspension of high dielectric particles in a liquid of low dielectric constant. with the action of the applied electric field, particles interact with each other. the viscosity of erf increases dramatically and the erf turns into solid
電流變液是由高介電常數、低電導率的電介質顆粒分散於低介電常數的絕緣液體中形成的懸浮體系，具有通過調節電場強度改變表觀粘度和屈服應力的機電耦合特性。If the times of renewing homotopy get at the max m, the net and nods get adjusting ( at the same time, the set will be renewed in the paper ), and the homotopy takes count from zero, and the process begins also with the new " homotopy - - > newton " when the nodes attain to the max v, and the homotopy times attain to m too, it mean that the current process fails and process terminates abnormally
若同倫更新的次數達到允許的最大次數m ，則調整網格節點數（本文中同時也改變方程組） ，同倫更新重新計數，進入初值的「同倫newton 」迭代。若網格節點數達到允許的最大數v ，同倫更新的次數也達到m ，則計算失敗，整個程序異常結束，可輸出有關異常結果。Those parameters often include sound volume, graphic options, multiplayer options, difficulty and starting level
這些參數通常包含音量調節、圖像調節、多人游戲設置、難度以及開始關卡。( 1 ) the got by experiment may contain thermal contributing by electrons and this part is not can be ignored. ( 2 ) got by thermal dynamic experimental data under normal temperature and pressure can be a standard for various theoretical models, but its precision should be analysis carefully before to use. ( 3 ) the method of using the migault ' s formular associate tuning up parameter to express which often be used is not very reasonable
本文第3章就gr neisen物態方程研究了三方面問題：第一方面，在分析了幾種不同定義的gr neisen系數的區別與聯系的基礎上指出， （ 1 ）在沖擊壓縮區，直接依據實驗數據獲得的往往包含不可忽略的電子熱貢獻； （ 2 ）常態熱力學可作為檢驗gr neisen系數理論模型的一個標準，但應注意該實驗測量值的精度（包括由於實際材料中存在的「非三項式物態方程因素」的影響） ，而所總結的在周期表上所具有較明顯的規律性，可作為對該值精確程度判斷的參考； （ 3 ）指出一種以調節參數的migault公式描述的常用方法的基礎與實際情況並不相符。The proportional valve " natural work depends on the accurate setting of the ratio amplifier. so the work parameter must be set before the running of the valve
由於比例放大器與比例閥是一一對應的關系，比例閥的正常工作很大程度上是依靠對比例放大器的準確設定，所以比例放大器中各調節指數都需要經過測試。分享友人