time-variable control 中文意思是什麼
time-variable control
解釋
變時控制-
Modern control theory has arisen with the advent of high - speed digital computers and characterized by the state variable concept with emphasis on matrix algebra and with analysis and design principally in the time domain
現代控制理論是隨著高速數字計算機的出現而產生的，主要特點是使用狀態變量的概念並強調矩陣代數和主要在時間域進行分析和設計。 -
The modulation of sound properties over a wide range of time scales is one of the most obvious characters of oscine passerine ' s vocal, whose song contains many different kinds of syllables that consist of many more multiple song phrases. in oscine passerine, ipsilateral projections of ra to nxiits innervates the ipsilateral syringeal muscles exactly, and thus they have strong ability of vocal control with variable tones, high frequency and higher lever of quality. as a result, the songs sound well
鳴禽鳴囀的最大特點之一便是其單次鳴唱時間長，鳴唱所包含的音節數量和音節種類繁多，因而由這些音節所組成的句型結構也是復雜多樣富於變化，且由於nxiits嚴格的側別控制（每一側核團只支配同側鳴肌） ，使其具有更強的控聲能力，其鳴聲音調變化幅度大，頻率高，品質因數大，音色好，因而其鳴聲也悅耳動聽。 -
The dcs of i / a series is regarded as main reference object, and the control is separated from model. and the configuration of control is operatised at administration system, not to be added into model, not to build control sound code also. therefore it realizes on - line adjusting, real - time control and so on. users configurate by filling table. they only define i / o condition, fill certain operation variable, and name logic variable. the software offers a friendly user ' s interface, so personnel can compile and modify the control and logic program, change the value of logic and control variable conveniently, attach themselves to run, debug and control the system, not need to know the programs deeply. so the configuration software offer a flat that control engineers can attend to control loop, not to give their attention to the complicated program
在本課題中，採用填表的方式進行控制組態，用戶只需定義i / o條件、填寫具體的運算變量名即可。本軟體為建模人員提供了一個友好的用戶界面，使建模人員在建模時不必對模塊內部的控制、邏輯程序有很深的了解就可以方便的對其進行編寫和修改，實時改變各邏輯和控制變量在數據庫里的值，參與運行和調試，從而實現對系統的控制。因此，本組態軟體提供的這樣一個平臺，讓控制工程師能集中精力于控制迴路的構成，而不必拘泥於一些具體而煩瑣的程序操作。 -
The improvements in the iaga contained adding strengthen operator, improving evaluation index of premature, etc. multi - phase homing project, making use of the flight properties of parafoil system in gliding and turning, was simple in control and facile in practice. based on frenet frame, the linear time - variable error equations of parafoil system were built
基於frenet坐標系推導和建立了翼傘系統線性時不變的誤差方程，並運用「投影點」的思想來獲得frenet坐標系下偏差量的解析近似表達式，從而設計了用於翼傘系統航跡跟蹤的傳統pd控制器和增益調節型模糊pd控制器。 -
When studying the network performance, flow control and resource provisioning of communication networks, traffic model plays a very important role. the recent studies show that the date network traffic is self - similar, so the markovian model, which describes telephone networks accurately, is not suitable for date networks. the self - similarity of the network traffic has severe impact on flow control and queuing analysis in date networks, therefore it has received significant attention. in this paper, g m 1 queuing model is used to analyze the queuing performance of generic variable length packet networks for the first time. the self - similar traffic is generated by multiplexing a large set of independent pareto heavy - tailed interarrival on off sources. the simulation results show that the heavy - tailed traffic results in queuing performance deterioration for variable length packet networks, which is in accordance with the analytical results for atm switches
業務量的自相似特徵顯著影響網路的流量控制與排隊分析，已經引起人們的極大重視。採用g m 1排隊模型對分組長度可變的網路的排隊性能進行了分析和模擬，其中自相似業務量是通過疊加大量獨立的到達間隔為pareto重尾分佈的on off源來生成的。模擬結果表明，自相似業務量導致網路的排隊性能劣化，這與有關文獻對atm交換的分析結果一致。 -
Therefore it comes true the on - line adjusting, real - time control and so on. it sames as real locale. the software of logic protect ( include electric logic ) and control includes some usual algebraic and operation model of thermal control and logic operation of logic protect. it adopts foxboro ' s dcs as a example, so we configuration via filling table, user only define i / o condition, fill certain operation variable, and name logic variable. the software offers a friendly user ' s interface, personnel can compile and modify the control and logic program, change the value of logic and control variable conveniently, attach themselves to run, debug and control the set, not need to know about the inside of the old programs deeply. so the configuration software offer a flat that control engineer can attend to the structure of control loop and logic protect ( include electric logic ), not but to handle complicated program
它以foxboro的dcs控制系統為主要參考模式，採用填表的方式進行控制組態，用戶只需定義i / o條件、填寫具體的運算變量名、邏輯變量名即可。本軟體為建模人員提供了一個友好的用戶界面，使建模人員在建模時不必對模塊內部的控制、邏輯程序有很深的了解就可以方便的對其進行編寫和修改，實時改變各邏輯和控制變量在數據庫里的值，參與運行和調試，從而實現對機組的控制。因此，本組態軟體提供的這樣一個平臺，讓控制工程師能集中精力于控制迴路及邏輯保護（包含電氣邏輯）的構成，而不必拘泥於一些具體而煩瑣的程序操作。 -
Aim at ubiquitous parallel multi - reservoir structure in our country ' s basin, the universal objective function including coefficient bi embodying a spatial significance difference at different flood control points and variable ai denoting a selection of scheduling mode is established, which provide a valid intervenor interface for flood control consultation decision. according to the real - time requirement, a model of reservoir storage allocation is proposed, which embody basic idea of phasic compensation. passing the dynamic correction to cut down the disadvantageous influence that indetermination result in on the certain degree, joining together the step alternation solving method, this model can maximally consider bias of decision makers, ensure the rationality and practicability of the solutions
針對我國流域中普遍存在的並聯庫群結構，論文提出包含不同防洪點重要性的系數_ i和選擇調度模式的變量_ i的通用目標函數，為防洪會商決策，提供了有效的人工干預介面，根據實時性要求提出動態分配防洪庫容的庫容分配方法，體現了相機補償的基本思想，通過動態修正在一定程度上可以削減不確定性造成的不利影響，結合分步迭代求解技術，能最大限度體現決策者的偏好，保障解的合理性和可操作性。 -
So the sliding mode variable structure controller was discussed, which has strong robustness against the disturbance, and the chattering phenomenon inherited from vsc was taken advantage to regular valve vibration for the purpose of avoiding coagulation on it, while precision of level control can be almost unaffected. but for the reason of control limitation, especially the acceleration insufficiency, the continuous time quasi - sliding mode vsc for one class of controllable system, as the substitution of ideal sliding mode control system, which was impossible to implemented, was researched, including the three essentials, reaching condition in particular, and the chattering ex - pression was given. furthermore, the effect to quasi - sliding mode motion and chatter - ing expression by extent disturbance was also analyzed
由於控制量相對受限制，並且主要體現在控制量加速不足方面，無法實現理想的滑模變結構控制，因此本文研究了一類能控系統在這種情況下的連續系統準滑模變結構控制，包括變結構控制三要素，尤其是到達條件；並且針對塞棒掛渣問題，給出了該情況下抖振的表達式；魯棒性方面，分析了外界擾動對準滑模運動的影響，並且給出了外擾作用下抖振的表達式。 -
In this paper, taking thewh20s flight simulator as research object, application of variable structure control for flight simulator is discussed. first, based of researching the flight simulator ’ s control system, and the problems in the flight simulator ’ s low - speed performance, continuous time variable structure control is researched. then, the paper analyses the non - linear factors ’ effect especially the friction factor ’ s effect to the flight simulator
首先在分析轉臺的控制系統以及轉臺在低速時存在問題的基礎上，研究了連續時間系統的變結構控制，分析了非線性因素特別是摩擦力矩對轉臺的影響，並對lugre摩擦模型做了研究，繼而將pid與變結構控制結合起來進行了研究，在模擬的基礎上應用於wh20s轉臺的實際控制系統，取得了較好的效果。 -
The variable - frequency of the fan control is realized by using the method of total volume air control of vav systems, at the same time, fuzzy - control is applied in terminate controller to make the system get a certain energy consumption
通過引入變風量空調系統總風量控制方法的設計思路對風機進行變頻控制，同時對末端控制器採用模糊控制技術，使得整個空調系統達到一定的節能目的。 -
In the research of non - liner variable control methods, the paper brought forward a kind of variable structure control machine with time - changing, non - liner, " standard time optimization " on - off super curved surface. the automatic system designed had quick dynamics - respondence, little, powerful robu
在非線性變結構控制方法研究中，本文提出了一種具有時變、非線性、 「準時間最優」開關超曲面的變結構控制器，由此所設計的控制系統動態響應速度快，超調小，魯棒性強，無穩態誤差。 -
But the gas collector pressure system is a complex multi - variable non - linear, time - varying, long time - delay control system and is not easy to set up its mathematical model
但是，集氣管壓力控制系統是一個多變量、非線性、時變性、大滯后的復雜控制系統，難以建立數學模型。 -
Discrete - time variable structure control ( dvscs ) systems with time - delay are studied in this dissertation
本文研究的主要內容為離散滯后系統的變結構控制。 -
In the present digital era, with the advance of microcomputer technology, the discrete - time variable structure control research on the sampled systems become a hot - spot
伴隨著數字時代的到來和計算機技術的發展，基於采樣離散模型上的離散系統的變結構控製成為目前研究的熱點。 -
In the end, some applications in the power electronic apparatus with the discrete - time variable structure control are introduced. the future development for the discrete - time variable structure control systems is also provided
最後討論了離散變結構控制在電力電子裝置中的應用實例及對離散變結構控制的發展方向作了展望。 -
Meanwhile, design methods of chattering - free in the discrete - time systems are expounded and the strategies of robust control for the discrete - time variable structure control systems are discussed in emphasize, especially the robust discrete - time variable structure control strategy with the reaching law based on discrete attenua ting rate control
同時，闡述了離散系統變結構無抖振控制的設計方法。論文重點討論了離散系統魯棒變結構控制方法，特別是應用離散衰減變速趨近律實現的魯棒控制策略。 -
A health monitoring system with a single variable control based on this model is achieved to make real - time online health assessment and give operation recommendations to make the propylene polymerization process more secure, stable and efficient
實現了對丙烯聚合生產過程的單變量健康監控對丙烯聚合生產過程的當前健康程度可做出實時在線的評佑，並給出操作建議，使得丙烯聚合生產過程更加安全、平穩、高效。 -
A green regulated deficit water - saving technology with high efficience and real - time variable control
調控虧缺度型實時變量高效環保田間節水灌溉技術 -
Using the optimization control method of the moderm control theories, the time - varying control and output - feedback control the authors study the variable structure active control over the rotor vibration with sma, especially the method of restraining the transient response of the rotor vibration. they get the rule of the optimum control force and the optimum control electric current and discuss the influence of variable stiffness on the total system stiffness through analyzing the structure of sma controller. they also indicate the shortcoming of the orthodox design method of a controller, especially the imbalance phenomenon caused by the lack of the rod stability, and propose a new method for improvement and items which ought to be paid attention to in the design stage
運用現代控制理論中的最優控制方法，引入時變控制和輸出反饋控制，研究利用形狀記憶合金對轉子振動進行變結構主動控制，特別是抑制轉子振動的瞬態響應的方法，得出了最優控制力和控制電流的強度變化規律；通過分析形狀記憶合金動作器的結構，探討了變剛度支承對系統總體剛度的影響，指出了傳統設計方法的不足之處，特別是由壓桿穩定性不足引起的失穩現象，並提出了改進的方法和在設計中值得注意的問題 -
In the foundation of simulation, the paper applies the association regulator in the wh20s control system, and achieves well performance. the present flight simulator ’ s control system is composed of software, so the study of discrete time variable structure control is necessary. in the foundation of researching traditional discrete variable structure control, two improved methods are discussed
考慮到現代轉臺控制系統的控制器都是軟體實現，進一步研究了針對離散時間系統的變結構控制，在對傳統離散變結構控制進行研究的基礎上，研究了兩種改進的離散變結構控制，取得了較好的效果。
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