nonlinear control system 中文意思是什麼

nonlinear control system 解釋
非線性控制系統
  • nonlinear : 非線性的
  • control : n 1 支配,管理,管制,統制,控制;監督。2 抑制(力);壓制,節制,拘束;【農業】防治。3 檢查;核...
  • system : n 1 體系,系統;分類法;組織;設備,裝置。2 方式;方法;作業方法。3 制度;主義。4 次序,規律。5 ...
  1. Abstract : the theory of variable structure control of sing ular nonlinear control systems was considered based on the singular nonlinear systems itself by employing the method of geography, and gives the sufficient condition of existence of variable structure control and approximation theory of real sliding mode. it is shown that sliding condition only guarantee the slow - varying state of real sliding mode approach that of ideal sliding mode but not guarantee the fast - varying state of real sliding mode approach that of ideal sliding mode. the method applied for studying normal nonlinear system can not be used directely to singular nonlinear system

    文摘:利用幾何方法,從廣義非線性系統本身出發,研究了廣義非線性控制系統的變結構控制理論,給出了系統存在變結構控制的充分條件及實際滑動模的近似定理.從所得結論可知,滑動條件僅能保證實際滑動模的慢變狀態趨近於理想滑動模的慢變狀態,而不能保證實際滑動模的快變狀態趨近於理想滑動模的快變狀態,研究正常非線性系統的方法已不能簡單地被利用到廣義非線性系統
  2. Secondly, we introduce the theory that flat systems, an important subclass of nonlinear systems introduced via differential algebraic methods, are defined in a infinite dimensional differential geometrical framework. utilizing this method, the control system of the vtol aircraft becomes a linear control system. finally, we introduce the theory that is found by my teacher, wanghong professor

    3 、應用平坦性分析方法和整體微分幾何方法分別分析了pvtol飛機在其起飛過程時的控制律,得到了該系統的整體化方程,指出了該系統是能控能觀的,並且指出該系統是平坦的控制系統,可以通過動態狀態反饋和適當的坐標變換使之變成線性系統。
  3. Electro - hydraulic proportional control and nonlinear control methods for aircraft arresting system are discussed theoretically

    對飛機攔阻系統的電液比例控制及非線性控制方法進行了理論研究。
  4. At present, surge control method for centrifugal compressor being used is commonly by least - flow method. it can ’ t make compressor working within operating condition area, sometimes starts the surge control system earlier, which will waste energy sources and depress economy benefit. even, its control system commonly consists of simulation instrument, can ’ t modify the changing surge curve of compressor in time and can ’ t control nonlinear surge curve preferably

    目前,在用的離心壓縮機的防喘振方法一般採用最小流量法,它不能充分使壓縮機工作在其工況區,往往過早起動防喘振系統,浪費了能源,降低了經濟效益。且控制系統一般採用模擬儀表構成,在壓縮機的喘振線發生變化時不能及時修正,對非線性的喘振線不能較好的實施控制。
  5. The dissertation is organized as follow : first, the characteristics of srm and its control system ' s development are introduced. previously major methods used to implement non - position sensor detection and the significance of making search for this direction is generated. and the configuration and fundamental operating principle of srm are analyzed ; some study of linear model and nonlinear model with phase coil as fundamental parameter are presented and sr ' s linear model and nonlinear model are set up

    本文就以上兩個問題進行了深入研究,首先介紹了sr電機及其控制系統的發展歷程,研究無位置傳感器srd的意義和總結已有的無位置傳感器檢測方法,並且通過分析sr電機的結構和運行原理,研究sr電機繞組的線性電感模型和非線性電感模型,建立了電機的線性和非線性數學模型,重點研究sr電機的非線性模型,為sr電機運行與控制特性的研究和模擬研究奠定了理論基礎。
  6. In the part of orbit control, the main ideas in study is to define the nonlinear control system on a riemann manifold from the global viewpoint, and to build the intimate relation between the geometrical structure of state space and the state equation of nonlinear control system ; in the part of attitude control, the main ideas in study is to deduce mathematical model with good character based on global differential geometry ideas as well as li group and li algebra, moreover, to design corresponding control schemes

    在軌道控制部分,研究的主要思想是從整體化的觀點出發定義一種建立在riemann流形上的非線性控制系統,將狀態空間的幾何結構與控制系統的狀態方程建立直接的聯系。在姿態控制部分,研究的主要思想是以整體微分幾何方法為工具,以李群與李代數等數學理論為基礎,從數學角度建立具有良好性能的數學模型,並設計出相應的控制方法。
  7. Abstract : it provides a kind of new nonlinear integrator and its mathematical model. its frequency responses is disscussed by the harmonics linearization method. its phase lag is found to be only 27. 6, all high order harmonics are very small, and it is very resistant to disturbances. by using it, an two - objective optimum control system is designed. it has very good control performances and will have good prospects in application

    文摘:提出一種新型的非線性積分器,給出它的數學模型,並用諧波線性化原理討論它的頻率特性,其幅頻特性起積分作用,而相位滯后僅27 . 6 ,高次諧波分量小,抗干擾能力強.應用這種積分器設計了一個雙目標優化的二次優化系統.模擬結果表明,系統的控制性能好,具有廣泛的應用前景
  8. Nonlinear model based predictive control ( nmpc ) not only is a valuable approach for solving practical control problems, but also is the frontier of nonlinear control theory. the perceptible successes of mpc strategies can be attributed to several factors including its inherent ability to handle input and output constraints, time delay and incorporation of an explicit model of the plant into the optimization problem. this dissertation discusses two kinds of nonlinearity ( or nonlinear system )

    本文沿著理論研究與工程實際相結合的設計思路,較為系統和全面的研究了非線性模型預測控制理論,提出改進新演算法;探討了非線性模型預測控制理論在自主水下航行器控制系統設計中的應用,豐富和發展了模型預測控制理論,本論文的主要工作及意義有以下幾個方面: 1 )從工程應用的角度研究有限域無終端約束廣義預測控制穩定性充分條件,為有約束廣義預測控制穩定性研究奠定了基礎。
  9. Nonlinear control system theory

    非線性控制系統理論
  10. 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。
  11. 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。
  12. Decoupling sliding mode control in a nonlinear spacecraft system

    非線性空間飛行器系統的解耦滑模控制
  13. Thus, efci algorithm is improved and the oscillation is overcome validly. and further, a linear pid controller is designed to replace the nonlinear component in the standard efci algorithm, it makes flow control system more robust, at same time, controls the queue length to expected value, which is beneficial to decrease delay in queue

    為了進一步克服系統振蕩問題,提出採用一種線性的pid控制器來替換標準efci演算法中的非線性環節,增強了系統的魯棒性,並實現了隊列長度的定點控制,有效地減少了排隊延時。
  14. Avoiding the use of mathematic models, the fuzzy logical control ( flc ) system meets the control demands of the tunnel ventilation process well which is a nonlinear distribution system. but because of its lacking of learning and adaptive ability, many problems has emerged when using flc : the membership functions of the fuzzy variables cannot be changed, the fuzzy logical rules cannot be modified automatically when environmental variables such as traffic model, average exhaust, etc, are changed. for this reason, the paper uses fuzzy neural network control ( fnnc ) system to improve the control process

    模糊控制系統避開了數學模型,能很好適應公路隧道通風系統非線性和分散式參數特徵,但是模糊控制系統本身的學習和適應能力差,導致了模糊變量各語言值隸屬函數和控制規則不能隨著環境參數(如交通量、基準排放量等)的改變而自動調整和修改等問題,本文將具有強大學習能力的神經網路融合到模糊控制系統中,研究和探討了隧道通風模糊神經控制方法。
  15. Chapter 2 deduces the mathematical model of electropneumtic proportional / servo cushioning controlled system by theoretical analysis. because of the essential nonlinear characteristic of electropneumtic proportional / servo control system, the three orders model is validated right by system identification method

    然後用系統辨識方法來建立系統數學模型,驗證了氣缸緩沖控制系統用三階模型描述較合理,這為後面控制策略設計提供了依據。
  16. 2. linearizing the fundamental motion equations of the fighters and then establishing the state equations. using nonlinear control system to control the rudder deflexions, and giving decision - making modeling of the maneuver fighting according to the current combat postures of the enemy ' s and our fighters

    2 、通過對空戰飛機基本運動方程的線性化,建立其狀態方程,運用非線性控制系統模型去控制舵面偏轉,並根據敵我機當前的作戰態勢建立機動作戰中的決策模型。
  17. Based on theories of hydraulic and nonlinear control system, this paper analyses the force of oil film in the hydro - viscous drive, and establishes its mathematic model

    在液壓流體力學理論和非線性控制理論的基礎上,對液粘制動器中的油膜的受力進行了研究並建立其數學模型。
  18. High voltage direct current ( hvdc ) power transmission system is a typical nonlinear control system

    高壓直流輸電系統( hvdc )是一個典型的非線性控制系統。
  19. New breakthroughs are obtained in manufacturing large - scale ultrahigh pressure container, design of ultrahigh hydraulic pressure system, design of multi - media large delay nonlinear control system, detecting state of device tested under simulation environment, modeling of in - well environment of oil field

    並在大型超高壓容器製造、超高壓液壓系統的設計、多介質大延時非線性控制系統設計、模擬環境中試驗設備工作狀態的檢測、油井井下環境的建模等方面取得了新的突破。
  20. First, this paper, taking on temperature, height, flux, pressure of liquid as research object, deals with an arithmetic of nonlinear control system in complex production system. based on practical object model, it has finished algorithmic emulator

    本論文以水槽的溫度、液位、流量、壓力四個參數作為控制對象,探討了工業過程式控制制中非線性復雜系統的預測控制演算法的應用,並且依賴于實際對象模型作出了程序實現。
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