disturbance feedback 中文意思是什麼

disturbance feedback 解釋
擾動反饋
  • disturbance : n. 1. 動亂，變亂，騷亂。2. 煩悶；（心情）紛亂；（身心）失調。3. 【無線電】干擾；【氣象學】擾動；【地質學；地理學】（地殼的）局部運動。4. 【法律】侵犯（權利），妨害（治安）。
  • feedback : 反饋的信息
  1. 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。
  2. A compound controller which combines positive feedback and negative feedback gives an excellent advantage of disturbance rejection

    運用正反饋和負反饋相結合的復合控制器，可以有效抑制擾動。
  3. The feedback of the output voltage is the major control loop. to achieve better frequency response and disturbance rejection of the input voltage, a input voltage feed - forward system is introduced in control loop. the duty - cycle of pwm applied at the gate of power mosfet is modulated by both input and output voltage

    該晶元採用的控制方式為電壓型pwm （脈沖寬度調制， pulsewidthmodulation ）控制方式，以輸出電壓反饋作為主要控制參量，同時為了提高晶元對輸入電壓擾動的響應速度，採用了輸入電壓前饋方法，將輸入電壓因素引入了反饋控制環中，通過對輸入輸出電壓的檢測，控制加在功率mos管柵極電壓上矩形脈沖的占空比，進而調節輸出電壓。
  4. The conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions

    常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振
  5. Abstract : the conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions

    文摘:常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振
  6. In this circuit, we use many kinds of negative feedback to modify the ou tput wave, which can decrease the distortion. and we use the high - voltage and high frequency capacitance efficiency, which can decrease the disturbance of output signal of variable frequency source for the test of part discharge

    採用了多種負反饋迴路修正輸出波形，使得輸出電壓波形的失真度很小；並且在電路中有效利用高壓高頻電容，減小了變頻電源輸出的電壓對局部放電試驗時的干擾。
  7. After analyzing compensation conditions for 3 - axis stabilization to overcome disturbance from ship surge, sway and yaw, two control strategies - feed - forward compensation and closed - loop feedback compensation - are given. these two strategies are applied to antenna stabilized tracking system with good performance. intelligent pid is used in closed - loop feedback compensation to get high tracking precision and rapid response

    重點分析了天線穩定控制系統的三軸補償條件，提出了穩定系統抑止載體擾動的控制策略：對于橫滾和俯仰系統採用前饋補償的控制策略；對于方位系統，在以步進電機為驅動元件的特定條件下，研究了變控制周期的閉環反饋策略，同時成功將智能pid演算法應用於實際系統，提高了系統的跟蹤精度和響應快速性。
  8. The feedback control mode of conventional control and adaptive control is to enhance the system ' s performance and to erase disturbance through feeding back output and disturbance simultaneously

    傳統的控制和自適應控制採用的反饋控制方式是將輸出和干擾同時反饋來提高系統性能和消除干擾，這樣在兩者之間只能折衷實現。
  9. Through the unknown perturbation and uncertain estimation of the system, and feedback the estimation to the control system, the active disturbance rejection controller thus realizes the dynamic feedback linearization of those dynamic systems. the adrc theory is unique, and the method is simple, it suited to the non - linear an uncertain hydroelectric power sets

    自抗擾控制理論通過對系統未知擾動和不確定量的估計，並將估計量反饋回控制系統中，從而實現系統的動態線性化，該理論思想獨特，方法簡單，特別適合於具有非線性和時變特性的水輪發電機組這樣的系統。
  10. The new adrc technique was concluded from the related references in recent years, and the adrc theory was systemically introduced, which included tracking - differentiator ( td ), extended state observer ( eso ), nonlinear pid, nonlinear feedback ( nf ) and active disturbance rejection controller ( adrc ), and etc. the author first designs a pd attitude control system, indicating : using pd attitude control, the time of small satellite gesture capture is long and the precision of control is low

    從近幾年有關文獻中總結了自抗擾控制新技術，系統介紹了自抗擾控制理論，其中包括跟蹤微分器（ td ） 、擴張狀態觀測器（ eso ） 、非線性pid 、非線性反饋（ nf ）和自抗擾控制器（ adrc ）等。設計了主動磁控小衛星pd姿態控制系統。指出採用pd姿態控制，微小衛星姿態捕獲時間較長，姿態控制精度較低。
  11. By using successive approximation approach, the feedforward and feedback optimal control law is presented, and a disturbance observer is designed to make the optimal controller physically realizable

    採用逐次逼近演算法給出了系統前饋反饋最優控制律的設計方法，利用擾動觀測器解決了最優控制律的物理可實現問題。
  12. This dissertation presented two new methods of robust adaptive track control for a class of mimo strong nonlinear system with external disturbance. one method makes use of taylor approximation principle to linearize the mimo strong nonlinear system at the ideal equilibrium point, meanwhile external disturbance is considered, and then designs two on - line neural network controller respectively, which can dynamically compensate the high order items of taylor series and the control signals at ideal equilibrium point under the drive of state error between linear and nonlinear system. a linear feedback controller obtained by pole assignment and two on - line neural network act on the practical mimo high nonlinear system together, guaranteeing the whole system robust stable and tracking the specified signal ; the other method designs three on - line neural networks for this class of system

    本文對於一類含有外部擾動的多輸入多輸出（ mimo ）強非線性系統，提出了兩種新的魯棒自適應跟蹤控制方法，第一種利用了taylor近似的原理，在考慮了外部擾動的情況下，將mimo強非線性系統在理想平衡點處線性化，分別設計了兩個在線神經網路控制器，在線性和非線性系統之間的狀態誤差驅動下動態補償系統的taylor近似高階項及理想平衡點處的控制信號，滿足極點配置方法的線性反饋控制器和兩個在線神經網路聯合作用於實際的被控mimo強非線性系統，在保證整個系統魯棒穩定性的情況下，能夠跟蹤給定的指令信號；另一種方法是針對這類系統設計了3個在線神經網路，分別實時抵消這類非線性系統中的非線性部分、與控制量耦合的非線性項以及外部擾動，使得受控系統的輸出可以完全跟蹤給定輸入參考信號。
  13. Secondly, the non - linear model of ship motion was studied. the non - linear term and the term related to pitching velocity are referred to disturbance of the system to get state feedback designed mathematic model of the rudder / fin joint control system. the non - linear rudder / fin joint control system - designing problem was transformed into disturbance attenuation linear system designing problem, which uses quadratic performance as object function

    為了得到船舶舵鰭聯合控制系統的狀態反饋h ~設計的數學模型，把非線性項及與橫蕩速度相關的項也看作是對系統的擾動，把非線性船舶舵鰭聯合控制系統設計問題化為以二次型性能指標為目標函數的干擾抑制的h ~線性系統設計問題。
  14. For the feedback controller design, under the condition of that the noise and disturbance had been eliminated through disturbance observer, an anti - windup state feedback controller is proposed to solve the problem in which most of the existing anti - windup schemes can not guarantee the asymptotic closed - loop stability even for open - loop stable systems subjected to actuator saturation

    對于反饋控制器設計，考慮了系統的物理約束即驅動飽和的影響，在系統的量測噪聲和外部擾動已經通過擾動觀測器減弱的條件下，提出了一種抗漂移的狀態反饋控制器設計方法。模擬結果表明所提方法的有效性。
  15. This article makes theoretical and experimental research on an active vibration isolation system based on piezoceramic actuator. the whole system consists of piezoceramic material as the actuator, a shaker as the disturbance source, a double - layered vibration isolation system as the controlled object. the system introduces state - variables - feedback control methods carried out by an analog circuit

    壓電式主動隔振系統是由壓電陶瓷作為作動器，激振器作為干擾源，雙層隔振系統作為受控對象組成的機電系統，其中控制方法採用狀態變量反饋，硬體電路採用模擬電路加以實現。
  16. The conclusions are : internal feedback has superior performance to a conventional feedforward control in master - slave system force tracking electro - hydraulic loading to reduce disturbance force and improve the dynamic behavior

    模擬結果表明，內部反饋在主從電液跟蹤加載控制中能減小多餘力的影響，系統特性的改善優于傳統的前饋方法。
  17. First of all, based on the administration function chart of cangzhou area, a simple closed loop control system model was abstracted, and through theory analysis of the model ' s input signal, controlled object, feedback facility, controller and system disturbance, the difference between this model and common model was showed and the characters of cangzhou area ' s sustainable development system were discussed

    以滄州區域行政運行圖為背景，抽象出一種簡單的閉環控制系統模型，並對該模型的輸入信號、被控對象、反饋裝置、控制器和系統干擾等特徵進行理論分析，說明該控制模型與普通控制模型的區別，以及滄州區域可持續發展系統的特點。
  18. The adrc is composed of nonlinear tracking differentiator ( ntd ) for feedforward control, an extended state observer ( eso ), a nonlinear proportional - derivative controller ( npd ) in the feedback path and disturbance compensation

    該自抗擾控制器由非線性跟蹤微分器、擴張狀態觀測器、非線性pd和擾動補償4部分組成。
  19. On the basis of this, establish one ideal driver feedback models, which are used to investigate both conventional front wheel ( fws ) and four - wheel steering ( 4ws ) automobile during side - wind disturbance

    在此基礎上，建立了一理想的駕駛員反饋模型。分析了使用前輪轉向、開環四輪轉向和閉環四輪轉向情況下汽車在側風下的運動。
  20. ( 2 ) a robust adaptive controller with l 2 - gain is derived for a class of siso cascaded nonlinear uncertain systems with zero dynamics. the state feedback controller guarantees that the closed - loop system is input - to - state stable and the l 2 - gain from the disturbance input to the controlled output is not larger than a prescribed value for all admissible parameter uncertainties

    （ 2 ）針對一類具有零動態siso串聯不確定非線性系統，結合h _控制和自適應控制並利用李亞普諾夫函數遞推設計方法設計了狀態反饋h _魯棒自適應控制器，避免了求解hji不等式設計控制器的困難。
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