discrete system stability 中文意思是什麼
discrete system stability
解釋
離散系統的穩定性-
In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory
由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果 -
Stability of nonlinear semi - discrete forest system
非線性半離散森林系統的穩定性 -
Abstract : this paper considers the decentralized stabilization problem via local state feedback control laws for a class of large - scale linear discrete - time systems with delay interconnections. a sufficient condition for decentralized stabilizability is derived and is expressed as a system of linear matrix inequalities. furthermore, the problem of designing a decentralized state feedback control law with smaller feedback gain parameters is formulated as a convex optimization problem, and latter can be solved by using existing efficient convex optimization techniques. the obtained controller enables the closed - loop systems to be not only stable, but also of any prescribed stability degree
文摘:用一組線性矩陣不等式給出一類線性離散時滯大系統分散能鎮定的一個充分條件，進而，通過建立和求解一個凸優化問題，提出了具有較小反饋增益參數的分散穩定化狀態反饋控制律的設計方法.所得到的控制器不僅使得閉環系統是穩定的，而且還可以使得閉環系統狀態具有給定的衰減度 -
Using the comparion theorem of difference equation, persistence theorem of discrete semi - dynamical system and stability of monotonous operator, we gain the boundary, uniform persistence and permanence of the system
應用差分方程的比較原理，離散半動力系統的持久性定理以及單調運算元的三分穩定性，獲得系統的有界性，一致持久性，永久持久性。 -
A discrete model for a simplified multi - router transfer control protocol network with random early detection congestion control system is proposed by modifying the previously developed one, where the nonlinear behaviors occurring in the system are researched by analytical and numerical methods, and the stability of the fixed points in different parameters is obtained simultaneously
摘要基於傳輸控制協議和隨機早期檢測擁塞控制演算法，提出多路由器網路拓撲下系統的改進型離散時間映射，採用解析及數值方法研究該映射中出現的分岔現象及混沌，給出系統的穩定性條件。 -
The predictive function control is discussed in detail. considering the step function as an example, the stability and robustness of the pfc system are analyzed through the discrete system structure and the inter - model control system characteristics
詳細討論了基於狀態空間描述的預測函數控制演算法，從離散系統的結構、內模控制系統的特性出發，以階躍函數為例，針對pfc系統的穩定性和魯棒性進行了分析。 -
This paper presents a sufficient condition for the asymptotic stability and geometry - velocity stability of the time - varying discrete dynamic system
摘要對時變離散動態系統給出了判斷其漸近穩定和幾何速度穩定的充分條件。 -
Here these stability results do not require a lyapunov function to decrease along trajectories of the system, and we also do not give conditions on continuous portion or discrete portion of the systems respectively, but we can give mixing conditions on them to ensure that it does n ' t increase quickly
本文所用的lyapunov直接方法不同於以往的常規方法，主要表現在所找的lyapunov函數不再局限於沿系統軌線單調遞減，也不再局限於對離散或連續部分分別設置條件，而是對其離散和連續部分設置混合條件以保證其不能增長太快 -
In this dissertation, we study some stability properties for two impulsive differential systems employing lyapunov ' s second method : one system is impulsive hybrid differential system : the other is differertial system with impulses at variable time : herein these stability results do not require a lyapunov function to have a negative definite first derivative along trajectories of the system, further we may not require its derivative to restrict the function increasing growth ; and we do not give conditions on continuous portion or discrete portion of the systems respective ! } ", hence we can give mixing conditions on them
在這篇碩士學位論文中，我們主要藉助lyapunov第二方法的思想，討論了兩類脈沖微分系統：脈沖混合微分系統和具有依賴于狀態脈沖的微分系統的穩定性問題。不同於以往的研究，本文所找的lyapunov函數沿系統軌線的一階導數不再局限於常負或定負，甚至不用其導數來限制其增長速度；不再局限於對離散或連續部分分別設置條件，而是對其離散和連續部分設置混合條件。 -
According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly
本文根據水輪機調節領域存在的問題和發展趨勢，對水輪機調速器的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優整定以及適應式參數自調整pid控制策略進行了研究，得到以下主要成果和結論：首次提出了採用步進電機驅動的步進式電液引導閥，從根本上解決了水輪機調速器電液隨動系統中存在的電液轉換元件發卡、堵塞問題，使電液隨動系統的可靠性大大提高。 -
( 3 ) for a kind of general discrete nonlinear system, a new scheme of fuzzy adaptive controller with globally stability is proposed, based on new parameter adaptive law of the system. owing to no need of the assumptions " x falling in a compact set " or " the base function being persistence excitation " which are difficult to be gotten and verified in reality, this result precedes the former research work
（ 3 ）本文在沒有通常採用的，但在實際中難以獲得和驗證的「 f （ x ）的定義域在緊集中」或「模糊基函數滿足持續激勵」條件下，針對一類一般的離散非線性系統，基於新的系統參數自適應律，給出了一種離散系統自適應模糊控制器的設計方法，證明了演算法的全局穩定性 -
As a part of the project, some contents, problems and recent researches on networked control system are introduced in this paper first. in order to reduce the occupation of network bandwidth, a method which finds the maximum transmit time can guarantee the stability of discrete control system is presented. for the sake of studying the network ' s delay influence on control system, a networked control system experiment software scheme is put forward in the last part of the paper
文中介紹了網路控制系統的一些基本概念、問題及目前的研究成果，提出在採用模型狀態反饋控制律並考慮網路延時情況下，保證離散網路控制系統穩定的最大通訊間隔的選取方法，並研究了建模誤差對最大通訊間隔的影響，介紹了通過預報的手段減小網路延時對控制系統影響的方法。 -
At first, we show that in both continuous - time systems and discrete - time systems, the overall stability is achieved if the order of the compensator is not less than the order of the unstable system
對于連續與離散系統，文中首先證明只要補償器的維度與此不穩定系統相同，則一定可行。 -
The delta operator is introduced to the h9 filter problem of discrete system, which is significant for the anti - disturbance of the high - speed sampled system. in the delta domain system, the coefficient of the gain matrix of the estimator is approaching to that of the continuous - time system. which not only guarantees the stability and the performance of the system but also avoids the also avoids the defects the z domain when the sampling periods is approaching to zero
濾波問題中，這對于高速采樣系統的抗干擾及狀態估計具有很大的理論及實際意義，當采樣周期趨近於零時，估計器的反饋增益矩陣及閉環極點趨近於連續系統的反饋增益矩陣及閉環極點，從而可以採用離散的設計方法獲得連續系統的性能，既保證了系統的性能及穩定性，又避免了z域內設計的缺點。 -
For the delta domain systems with the discrete systems, we analyze and design the hx controllers using lyapunov stability theory. the results contain the sampling period and show that when sampling period is decreasing to zero the system is stable all the same while the performance of the discrete - time system is approaching to the continuous - time system
針對delta域內的離散定常系統，本文採用統一的李亞普諾夫第二穩定方法，對其進行了h _狀態反饋分析和設計，結論得到一個含有采樣周期的線性矩陣不等式，當采樣周期趨近於零時，系統仍然穩定，離散系統的性能趨于連續系統。 -
Stability of t - s discrete fuzzy control system
離散模糊控制系統的穩定性研究
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