收斂控制系統 的英文怎麼說
中文拼音 [shōuliǎnkòngzhìxìtǒng]
收斂控制系統
英文
convergent control system- 收 : Ⅰ動詞1 (把攤開的或分散的事物聚集、合攏) put away; take in 2 (收取) collect 3 (收割) harvest...
- 斂 : Ⅰ動詞1 (收起; 收住) hold back; keep back 2 (約束) restrain 3 (收集; 徵收) gather; collect; ...
- 控 : 動詞1 (告發;控告) accuse; charge 2 (控制) control; dominate 3 (使容器口兒朝下 讓裏面的液體慢...
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 收斂 : 1 (減弱或消失) weaken or disappear 2 (約束言行) restrain oneself 3 [數學] convergence; constr...
- 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
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As soon as the servo system is concerned, the celerity of control algorithm is a very important capability guideline
在計算機控制系統中,控製程序的時間間隔對控製品質有著很重要的影響,這就要求所設計的控制器收斂速度快。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角螺旋線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功,對其他相似類型零件的加工亦具有參考意義Traditional power control algorithin is to use a convergent iteration fimtion to set up a mathematical model. when such method is used to control the power of user, we should find the optimum solution vector of the convergent iteration funhon by iteration transform
在傳統的功率控制演算法,通常採用某個迭代關系式為其建立某一的數學模型,該迭代關系式應滿足收斂特性。Neural network control is an important mode of intelligent control, and it is widely used in branches of control science, first, the architecture and the learning rule ( error back propagation algorithm ) of multiplayered neural network which is widely used in control system are presentedo especially, the paper refers to the architecture of diagonal recurrent neural network and its learning algorithm - - - - - recurrent prediction error algorithm because of its faster convergence with low computing costo next, before introducing the neural network control to the double close loop dc driver system, the controllers of current and velocity loop are designed using engineering design approach after analysis of the system, simulation models of the system are created
神經網路控制是智能控制的重要方式之一,它廣泛應用於自動控制學科各個領域。本文首先敘述了控制系統中常用的多層前饋網路結構及演算法( bp演算法) ,特別提及了能夠較好描述系統動態性能的對角遞歸神經網路和在用遞推預報誤差演算法訓練drnn時取得了較快的收斂速度。其次,應用工程方法分析設計了tf - 1350糖分離機的電流、轉速雙閉環直流調速系統的控制器,作為引入神經網路控制的設計基礎,並建立了系統的模擬模型。A novel dynamic evolutionary clustering algorithm ( deca ) is proposed in this paper to overcome the shortcomings of fuzzy modeling method based on general clustering algorithms that fuzzy rule number should be determined beforehand. deca searches for the optimal cluster number by using the improved genetic techniques to optimize string lengths of chromosomes ; at the same time, the convergence of clustering center parameters is expedited with the help of fuzzy c - means ( fcm ) algorithm. moreover, by introducing memory function and vaccine inoculation mechanism of immune system, at the same time, deca can converge to the optimal solution rapidly and stably. the proper fuzzy rule number and exact premise parameters are obtained simultaneously when using this efficient deca to identify fuzzy models. the effectiveness of the proposed fuzzy modeling method based on deca is demonstrated by simulation examples, and the accurate non - linear fuzzy models can be obtained when the method is applied to the thermal processes
針對模糊聚類演算法不適應復雜環境的問題,提出了一種新的動態進化聚類演算法,克服了傳統模糊聚類建模演算法須事先確定規則數的缺陷.通過改進的遺傳策略來優化染色體長度,實現對聚類個數進行全局尋優;利用fcm演算法加快聚類中心參數的收斂;並引入免疫系統的記憶功能和疫苗接種機理,使演算法能快速穩定地收斂到最優解.利用這種高效的動態聚類演算法辨識模糊模型,可同時得到合適的模糊規則數和準確的前提參數,將其應用於控制過程可獲得高精度的非線性模糊模型In proc. ieee real - time and embedded technology and applications symposium rtas 2004, toronto, canada, may 2004, pp. 296 - 305. 14 lu c, stankovic j a, tao g, son s h. feedback control real - time scheduling : framework, modeling, and algorithms
最後,實驗結果證明:對于控制矩陣g處于穩定區的端到端分散式實時系統, ic - eat是收斂穩定的,並為非周期任務提供更好的qos確保,此外, ic - eat還能提供系統吞吐率。The mrafc scheme employs a reference model to provide closed - loop performance feedback for generating or modifying a fuzzy controller ' s knowledge base. the adaptive compensation term of optimal approximation error is adopted. by theoretical analysis, the closed - loop fuzzy control system is proved to be globally stable, with tracking error converging to zero
該方案利用參考模型作為閉環系統的反饋信號來產生、調節模糊控制器的規則庫,並通過引入最優逼近誤差的自適應補償項來消除建模誤差的影響,不但能保證閉環系統穩定,而且可使跟蹤誤差收斂到零。Firstly, based on backstepping and the supervisory control strategy, a robust adaptive fuzzy controller is designed for a class of nonlinear systems. the first type fuzzy logic system is used to approximate the unknown part of the process. the adaptive compensation term of the optimal approximation error is adopted
本文首先針對一類不確定非線性系統,基於backstepping方法,利用監督控制,引入最優逼近誤差的自適應補償項,並利用型模糊邏輯系統逼近系統的未知部分,提出了一種魯棒自適應模糊控制器設計方案,運用李亞普諾夫第二方法,先證明了閉環模糊控制系統全狀態有界,再證明了跟蹤誤差收斂到零。Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向,本論文重點做了以下幾個方面的工作,目的在於提高dtc系統的綜合性能: ( 1 )提出一種新型的速度磁鏈觀測器,新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度,並且根據popov超穩定性理論推導出轉速的新型自適應收斂律; ( 2 )改善系統的低速運行性能,主要從提高低速時對定子磁鏈的估計精度入手,提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數; ( 3 )採用數字信號處理器dsp實現系統全數字化硬體控制,結合ti公司生產的tms320lf2407晶元,設計了直接轉矩控制系統的實驗裝置; ( 4 )提出了基於sercos總線網路化分散式的直接轉矩控制系統, sercos ( serialrealtimecommunicationsystem )是目前最適合同步和協調控制的串列實時通信協議; ( 5 )基本勾勒出整個控制系統的硬體和軟體設計基本框架,詳細描述一些實驗中的具體的細節問題。The system identification method is presented for backcalculating the dielectric property and thickness of pavement structures. the method of singular value decomposition is put forward to diagnose the ill - conditioned governing equation and the problem of finding solution to ill - conditioned governing equation is successfully resolved. the parameter adjustment arithmetic with high accuracy, which is based on precise theory and can be converged rapidly, is established
提出了路面結構層介電特性及其厚度反演分析的系統識別方法,將奇異值分解技術應用於控制方程的病態診斷和求解,有效地解決了控制方程病態時的求解問題,建立了理論嚴謹、收斂快、精度高的模型參數調整演算法,並開發了路面結構層材料介電特性及其厚度反演分析軟體sidthk 。Based on x - filtered lms algorithm and - filtered lms algorithm adaptive inverse control, we use a new variable step size lms algorithm. adding little computation, variable step size lms algorithm can result in fast convergence speed and low residual error simultaneously. the adaptive feedback control can counteract the beginning error of the system
在原來的x -濾波lms演算法自適應逆控制和-濾波lms演算法自適應逆控制方法的基礎上,引入了新的變步長lms演算法,在計算量增加不多的前提下,能同時獲得較快的收斂速度和較小的穩態誤差;引入自適應的反饋補償控制克服了被控系統的直流零頻漂移,使控制系統在初開始工作階段快速收斂;還引入自適應擾動消除器,它能最大限度的消除擾動。The state of closed - loop control system is proved to be bounded with tracking error converging to zero
證明了閉環模糊控制系統全狀態有界和跟蹤誤差收斂到零。The state of the closed - loop control system is proved to be bounded with tracking error converging to zero
同樣證明了閉環模糊控制系統全狀態有界和跟蹤誤差收斂到零。The main contributions of this dissertation are summarized as follow : ( 1 ) an ilc approach combining feedforward with current feedback is developed based on optimal feedback control and the gradient method. a sufficient condition that guarantees the convergences is given for linear system. the procedures of designing the algorithm can employ lqr, h2 or h approaches to improve the convergence rate of learning in iterations
本文的主要成果有: 1 、在開閉環綜合迭代學習控制結構的基礎上,分析了利用梯度下降法設計前饋迭代學習控制器時,為保證演算法的收斂性,閉環控制系統應該滿足的充分條件,並依據提高演算法收斂速率的優化條件,給出了基於lqr 、 h _ 2和h等優化控制技術的迭代學習控制演算法的設計方法。So the paper combined the fuzzy logic control and recurrent neural network, and the recurrent fuzzy neural network ( rfnn ) controller is introduced into the speedsensorless vector control system. moreover, an online parameter training methodology, which is derived from the lyapunov stability theorem and gradient descent method is proposed to increase the learning capability of the rfnn. the rfnn controller has a better performance than the pi controller system ; the effectiveness of the proposed control scheme is verified by simulation results
因此論文將模糊控制和具有優越動態性能的遞歸神經網路結合起來,取長補短,提出了一種遞歸模糊神經網路控制方法,利用神經網路來實現模糊推理,可動態的調整隸屬函數的形狀、位置以及神經網路遞歸權值,並對其與pi控制器的交流調速控制系統進行了模擬比較,模擬結果表明與普通的pi控制器相比較,遞歸模糊神經網路控制器有較好的動態性能,控制器的收斂速度快、靜差小,系統在遇到參數發生變化和外部不確定性問題時魯棒性、抗擾動性有明顯的提高。The paper makes simulation studies into the field oriented control systems based on multiplayer feedforward networks and dynamic recursive networks respectively, and compares the convergence speed and approximate extent between the two learning algorithms
對採用多層前向網路和動態遞歸網路的矢量控制系統分別進行了模擬實驗,比較了兩種學習演算法收斂的快速性和逼近程度。Abstract : a continuous type inferential control algorithm and the proof of the stability and the convergency of the inferential control system are given in this paper. the system has the performance of convergency and robustness. the algorithm which is simple and has only one adjustable parameter q and has been successfully used for the servo control of the tension of the film in the metallized film capacitor automatic winding machine and we get a satisfactory result
文摘:給出了一種適用於工程常見的二階對象的連續型推理控制演算法,以及推理控制系統的穩定性和收斂性證明.該系統無差、穩定,且具有較好的魯棒性.該控制演算法簡單,僅有一可調參數q ,並成功地應用於薄膜電容器全自動卷繞機中作為快速張力伺服控制,取得滿意效果Simulation studies have shown that this nonlinear adaptive inverse control system can erase disturbances and result in fast convergence speed
模擬結果證明了這種非線性自適應逆控制系統收斂速度非常快,消除擾動能力很強。6 ) probed into the feasibility to apply wavelet networks to signal processing in process control system. a compression algorithm based on wavelet networks was proposed and the features of algorithm were fast parameter approximation rate and high compression ratio
6 )探討了小波網路在過程式控制制系統中信號處理方面應用的可行性,給出了一種基於自適應小波網路的數據壓縮演算法,該演算法具有參數收斂速度快、數據壓縮比高的特點。System stability is realized. the control strategy is extended hybrid chaotic system and a designing controller method of hybrid chaotic system is deduced. from lyapunov stability theory of nonlinear system, got convergent region of system
在此基礎上,將該控制策略推廣到混雜混飩控制系統中,並進一步推導了混雜混燉系統控制器的設計方法,根據非線性系統李雅普諾夫穩定性理論,得出了系統的收斂區域。分享友人