inverse feedback 中文意思是什麼
inverse feedback
解釋
倒數反饋-
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。 -
For the exact feedback linearization of general nonlinear singular systems, by taking the algebraic variables as virtual inputs, a recursion inverse algorithm is introduced in this paper
摘要對一般廣義非線性系統的反饋線性化問題，通過將代數變量視為虛擬輸入，給出了構造性遞歸求逆演算法，實現了系統的精確反饋線性化。 -
Using the digital technology improves the performance traditional thyristor welding machine, according to the characters of the double inverse star from rectifier circuit, set the parameters with micro - controller accurately, design the dependable trigger circuit, lead the feedback of voltage for the operation program, so the voltage of main circuit be carried out very steadily
摘要利用數字控制技術對傳統晶閘管焊接電源進行改進，根據雙反星型晶閘管整流電路的特點，採用單片機進行精確設定，設計了高可靠性觸發迴路，結合電壓反饋進行程序運算控制，實現了主電路輸出電壓的精確調整和可靠運行。 -
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。 -
Feedback is used in control, but it is just limited to adaptive process. adaptive inverse control dominates alterable parameters rather than signal flow in system not so as conventional control
和傳統的控制不一樣，自適應逆控制採用反饋不是為了控制系統中的信號流動，而是用於控制系統中的可變參數。 -
Research on inverse four - stage land feedback model in traffic impact analysis
交通影響分析中逆四階段用地反饋模型探討 -
For this reason, the paper is aimed at the electro - hydraulic servo - system nonlinear problem, and proposes the feedback linearity means ( that is the inverse system method ) against the system mode systematically to transform such nonlinearity into the pseudo linear system. the system mode not merely continues to have system message completely feedback the linearity means, but also achieves the great limit linearization of controlled device, for designing the controller to advance system dynamic characteristic and performance index and supply the ideal terrace in the interest of the application linearity control theory
為此，本文針對該非線性問題，提出了逆系統狀態反饋線性化方法，將其非線性系統轉化成偽線性系統，不僅完全保留了系統的信息，而且還實現了被控對象的大范圍線性化，為應用線性控制理論去設計控制器為提高系統的動態特性和性能指標提供了理想的平臺。 -
Concretely, adaptive inverse control is an open loop control toward dynamic characteristic of system by acting inverse of plant transfer function as series controller, so it avoids instability as a result of feedback. at the same time, because the control of dynamic characteristic of system and plant disturbance is to be treated separately and that has not influence mutually
具體地說，自適應逆控制是用被控對象傳遞函數的逆作為串聯控制器來對系統的動態特性作開環控制，從而避免了因反饋而可能引起的不穩定問題；同時又能做到對系統動態特性的控制與對象擾動的控制分開處理而互不影響。 -
This paper presents a kind of nonlinear adaptive inverse control with - filtered algorithm, which has adaptive disturbance canceler and feedback compensation in it
提出了一種帶自適應擾動消除器和反饋補償的非線性自適應逆控制系統。 -
Based on the fuzzy control theory, three types of aero engine fuzzy controllers were designed. first, a general fuzzy feedback control system was studied, then, an inverse fuzzy feedback controller was studied and the performance of it also studied. finally, an equivalent fuzzy controller was designed and also its robustness performance was studied
首先設計了一種簡單的模糊反饋控制系統，初步驗證模糊控制在航空發動機控制中應用的可能性；然後研究了模型逆模糊控制系統在航空發動機控制中的應用；最後研究了的當量模糊控制器，並研究了這種控制系統的魯棒性能。
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