main feedback 中文意思是什麼

main feedback 解釋
主反饋
  • main : adj 1 主要的，主，全，總。2 充分的，盡量的；全力的，有力的。n 1 體力，氣力；力〈僅用於 with might...
  • feedback : 反饋的信息
  1. In the end, the main content of this dissertation is addressed. in chapter 2, based on the analysis of present vibrator ' s principle and structure, two kinds of transfer functions and frequency response curves of the vibrator, driven by voltage feedback power amplifier and current feedback amplifier, are given separately. and turnover frequencies between different frequency rangs are also given

    第二章分析了標準振動臺的工作原理和結構，在此基礎上，建立了標準振動臺的機械和電氣方程，給出了恆壓源和恆流源功放激勵下的振動臺傳遞函數及幅頻、相頻特性曲線，列出了不同頻段間的轉折頻率。
  2. 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。
  3. The first main conclusion that i made is about the feedback mechanism on the administrative levels of trading

    換言之，正反饋交易通常能夠在短期內呈現出「自我強化」 、 「自我實現」的性質。
  4. The main design procedure involves the use of a feasible approximation method to establish a finite - dimensional and interconnected nonlinear dynamics, and then utilize the cascaded nonlinear feedback design for achieving uniform output regulation

    主要設計方式擬先採用可行近似方法建立一有限次元及內都串聯的非線性動態，接著利用串級非線性回饋控制設計使得均一輸出能規則化。
  5. By detailedly analyzing the control problem caused by the time - delayed characteristic of main - steam temperature, the fact that a well - designed feed - forward effect can supply the want of the feedback effect and solve the control problem of long time - delayed system was put forward

    通過對電廠主蒸汽溫度的大遲延特性導致的控制難題的詳細分析，提出合理設計的前饋控製作用能彌補反饋控製作用的不足，可以有效地解決大遲延系統的控制問題。
  6. 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。
  7. Qjyd3200 cut - type auto lift is the professinal lifting equipment for sallon car ' s maintenance and examining. it has the main characteristic of occupying small area, good security capability & has the feedback signal then descending fo the lift platform. it is also very simple to handle & working credibly. especially for the full hydraulic pressure working system, it is suitable for various situation & unnecessary to collocate the compress - air resource additionally

    D3200型剪式汽車舉升機是專供轎車維修、檢測時配置的舉升設備，其主要特點是佔地面積小、安全性能好、升降臺下降時有啟鎖反饋信號、工作可靠、操作簡便，尤其是全液壓工作系統，不需另外配置壓縮空氣源，適合多種場合應用。
  8. The main research contents are as follows. 1 ) the characteristics of semi - process industry based on make - to - order are studied, which means that the purchase tune is long while the due date is short, the working procedures are successive and discontinuous. then the general structure of production system based on make - to - order mode in semi - process industry is put forward, which includes estimate of the dynamic finite resources, evaluation of the order based on rough capability balance, material requirement planning, production plan, order tracing, collection and feedback of the local data etc. they all together form an integrated and closed loop system as a whole

    研究的內容主要包括： 1 ）研究了半流程製造業面向訂單生產模式具有的采購期長、交貨期短和工序連續但工序間可間斷的特點，並基於此提出了適應半流程製造業面向訂單生產的系統總體結構，其主要內容包括動態有限資源能力評價、基於初能力平衡的訂單評估、物料需求計劃和生產作業計劃、以及訂單跟蹤和現場數據的採集和反饋等，它們在總體上形成了一個集成的和閉環的系統。
  9. The main results are as follows : 1. dynamical behavior in coupled map lattices with regular topology are investigated by using lyapunov componet. 2. dynamical behavior in coupled map lattice with scale - free topology are investigated in detail. our strategy is to apply three feedback control methods, including constant feedback and two types of time - delayed feedback, to a small fraction of network nodes to reach desired synchronous state

    本論文正是對具有無標度拓撲結構的耦合映象格子的動力學行為進行了研究，主要內容和創新點如下: 1 .利用lyapunov指數對具有規則網路結構的耦合映象格子系統的動力學行為進行研究; 2 .對具有無標度網路結構的耦合映象格子系統的動力學行為進行了詳細研究;為了使系統達到同步，我們的策略是應用三種反饋方法（常數反饋和兩種時延反饋）對系統的部分節點進行控制以達到我們期望的狀態。
  10. The design of force feedback loop is emphasized on the base of theory analysis. then proportional - integral controller and lag - lead compensator are designed to improve dynamic performance of this kind of gyro. the main work includes optimizing parameters and system simulation

    用matlab分析了陀螺本體傳遞函數的波德圖，然後通過採用比例-積分控制和遲后-超前校正及參數優化、系統模擬，使陀螺系統的固有頻率得到顯著提高。
  11. Explaining the main reasons why we should extend the timing range of the air - cooled transformational orbit electrical motor, this passage briefly introduce three feasible scenarios, and shows us the setting and steps to change the non - timing feedback system to timing feedback system when practicing the scenarios actually

    文章說明了風冷運輸輥道電動機擴大調訴范圍的主要原因，簡要介紹了三種可行方案，並說明了具體實施方案中，由無測速反饋方式改為測速反饋方式的設置及步驟
  12. Theoretically several solutions are derived in the final scheme such as broadband matching technology which included negative - feedback technology, traveling wave technology and balance technology. in addition, the design will be optimized by eda software and the final test result indicates that our design is successful. the principle of microwave amplifier is introduced at first in this paper, especially its main parameters index sign, then the material performance and the influence of parasic parameter and model setting of the gaas phemt is discussed

    文中首先介紹寬頻帶放大器的主要參數指標，接著介紹了gaasfet的材料特性，以及phemt管芯寄生參數對實際放大器設計的影響，然後討論gaasphemt的大、小信號模型的建立與分類;結合gaasphemt模型和s埠參數分析了寬頻帶匹配技術的原理;最後論述本課題中各個放大器實現的具體方案，以及在放大器實現過程中應該注意的問題，給出了實際寬帶放大器的測試結果，並將軟體模擬結果與實測曲線進行對比。
  13. The main performances of the afm were in the advanced level around the world. the probe unit of the horizontal afm includes a photo - electronic detection unit with a particular optical - beam - deflection path, a regulating block of the setpoint of imaging force, the xy scanner and z feedback controller, the coarse adjusting and fine adjusting mechanism for the sample approaching to the probe tip. the powerful circuits of preamplifier, as well as the circuits of xy scanner and z feedback controller were developed

    成功研製了臥式afm探頭，包括特有的微懸臂偏轉量的臥式光電檢測系統、 afm成像工作點（即原子力的預設置點）的調節機構、 jy }藝掃描與反饋控制器、樣品的粗調與微調機構;自行研製了高性能的psd前置放大電路、 xy掃描控制電路和z向pid反饋控制電路系統;設計了a / d & d / a控制介面，獨立開發了性能完善的afm掃描與控制軟體系統及功能強大的圖像處理軟體系統。
  14. The main contents of this paper are outlined as follows, 1 for time delay systems with norm - bounded uncertainties, a sufficient and necessary delay independent robust quadratically stabilizable condition, the corresponding robust stabilizing controller designing method by state feedback, a sufficient delay - dependent robust stabilizable condition and state feedback controller designing method are given in terms of linear matrix inequalities

    主要研究內容包括1 、研究一類同時存在狀態和控制滯后的不確定時滯系統的狀態反饋魯棒鎮定問題。給出了一個系統魯棒二次可鎮定的充分必要條件，以及系統時滯依賴魯棒可鎮定的充分條件及相應的狀態反饋魯棒鎮定控制器設計方法，結果以線性矩陣不等式的形式給出。
  15. Secondly, the main stuctures of the software and hardware parts of the control system are introduced. principles and realization of the main functional blocks of these two parts are illuminated. on the hardware of the system, parts of control circuit and the design and debugging of peripheral circuits are discussed thoroughly. based on the hardware circuit, the software is programmed with assembly language. dual close loop vector control weth feedback of speed and current are realized. the flow charts of main programme and pwm interrupt service routines are given. the important control strategies of vector control pmsm such as current sensint and scaling, speed sensing and scaling, bector co - ordinate transformation, generation of sine and cosine, pi regulators, svpwm vector modulation and so on are all accomplished in the pwm interrupt sevice routines. in order to unite all the variables in the programme, scaling is used

    硬體方面主要論述了控制電路各部分及外圍輔助電路的設計和調試。在硬體的基礎上，軟體採用匯編語言編程，實現了轉速和電流雙閉環矢量控制。給出了系統主程序和pwm下溢中斷處理程序流程圖， pmsm矢量控制的主要控制策略如電流采樣與定標、速度采樣與定標、矢量坐標變換、 sin和cos值生成、 pi調節、 svpwm波形生成等都是在pwm下溢中斷服務子程序中完成的。
  16. 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。
  17. The main contents in this thesis are as following : 1. the feedback control model of structure - acoustic system is established and brought into ‘ standard control framework ’. 2

    本文取得的主要新成果有: 1 .建立了結構振動聲輻射反饋控制模型，並將其納入控制理論中的「標準控制框架」 。
  18. Then the response calculation formulas of ihb method and the influence of several parameters " changing on the system response are shown in this article. active control method is used in dry friction system at last in the third chapter. on the feedback of speed and acceleration, the active force is applied in accessory structure and main structure separately, the influence of active force is analyzed too

    附加子結構法（ tmd ）是結構抗振的常用的方法之一，文中接著將tmd引入干摩擦抗振系統中，首次提出具有附加子結構的干摩擦抗振系統，並詳細給出了其ihb響應求解的具體公式，分析了各個參數變化對系統響應的影響，然後將主動控制概念引入具有tmd的干摩擦抗振系統中，在速度和加速度反饋的基礎上，將主動控制力分別施加於附加結構和主體結構，分析了它們對系統響應的影響。
  19. The main contact is about the implement of the feedback aanc system using internal model control ( imc ) configuration. firstly, the performance of common filter - x lms algorithm is examined. then, the algorithm of feedback aanc systems based on filtering - x lms algorithm is deduced

    論文以內模型控制實現自適應有源反饋控制系統為核心，研究了常規濾波? xlms演算法性能，推導了基於濾波? xlms演算法的自適應內模型控制有源反饋演算法，通過計算機模擬研究了單通道和多通道條件下該系統性能。
  20. The paper involved srm s maths model, velocity - control theory and feedback - signal - check technique. according to srd s main technical demand, srm s raw data and srm s control theory, the main system was divided into several modules. based on the modules, by selecting proper components and calculating right parameters, in parallel with the sample machine s experiments, the cotroller s design was completed and the system completely meet the demands

    根據開關磁阻電動機驅動系統的主要技術要求和開關磁阻電動機的原始數據以及控制理論，將2 . 2kwsr電動機控制器系統的設計劃分為幾大功能模塊，進而通過系統元器件的選型和參數計算，結合樣機試驗，完成了對2 . 2kwsr電動機控制器系統的設計，並達到功能要求。
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