electric feedback 中文意思是什麼
electric feedback
解釋
電氣反饋-
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。 -
Sweet wine, romantic music, waltz, band performance and interesting games were full of the party. schneider electric ( china ) introduced merlin club s rules, three theme activities and also got feedback of designers for mg club
主辦方施耐德電氣（中國）投資有限公司，向到場的來賓宣布梅蘭日蘭設計師俱樂部的章程，三大活動主題，並現場徵求該俱樂部活動的建議。 -
" field observation of high rock - fill dams and feedback data analysis " and " dynamic analysis of high earth and rock - fill dams and aseismatic measures ", the concepts and methods obtained in the above two consulting items were creative and evaluated by the ministry of electric power as being of international level. the research findings were adopted in such large - scale projects as the tianshengqiao water contral project, ming tombs water control project. dahe water contral project, ming tombs water control project, dahe water control project and lianhua water control project and awarded the second prize of scientific and technical advancement of the ministry of electric power. ( 2 ) the research on the stress - strain correlation of dam construction materials was awarded the second prize of scientific and technical advancement of the ministry of electric power. ( 3 ) the result of the field observation test and computational analysis for the tailing dam improvement project of xuzhou power plant was adopted by the east - china design institute of electric engineering with considerable economic benefit. ( 4 ) the result of the geotechnical test and data analysis of wenfu mine project was applied in the project with considerable economic benefit. ( 5 ) the field observation and data analysis of the kezier reservoir project provided a solid base for ensuring the normal operation and management of the reservoir
「高堆石壩原位觀測和反潰分析研究」及「高土石壩動力分析及抗震工程措施研究」咨詢項目提出了具有開拓性的觀點與方法，經電力工業部鑒定評為國際先進水平，該兩項成果已應用於天生橋、十三陵、大河、蓮花等大型工程獲電力工業部科技進步二等獎； 「壩料土動力應力應變關系的研究」咨詢項目獲電力工業部科技進步二等獎， 「徐州發電廠灰壩加固工程勘測試驗與計算分析」咨詢成果已被華東電力設計院設計采納，工程效益顯著； 「甕福磷石膏渣場工程土工試驗與數值分析」咨詢成果已應用於國家重點工程甕福礦肥基地建設，效益顯著； 「克孜爾水庫工程原型觀測數據庫與資料分析」咨詢項目為水庫運行與管理提供了有力保證。 -
Voltage feedback control can automatically compensate to the distribution voltage wav and let the welding electric arc stability
電壓反饋控制，對電網電壓波動能自動補償，使焊接電弧穩定。 -
Currently, the large space vehicle ’ s vibration test usually adopted dual - shaker system, the electric current phase synchronous controller is one of the equipments importantly in the system. the existing control equipments make use of tri - tek704d controller, and the current feedback in - phase control method
目前，我國大型航天器環境振動試驗採用多振動臺同步激勵的試驗系統來完成，電流相位/幅值同步控制器是並聯雙振動臺同步控制系統中重要的組成設備之一。 -
For a class of shunt - wound active power line conditioner, based on analysis of mathematical model of system and target of control, the algorithm of fuzzy variable structure sliding mode control is presented. the control algorithm can avoid complicated calculation of harmonic electric current in traditional control algorithm, and realize the feedback control of electric current. the algorithm is simple and easily implemented
針對一類並聯型有源電網調節器在分析系統數學模型和控制目標的基礎浙江大學博士學位論文上，提出了模糊滑模控制策略，避免了傳統控制方法中復雜的諧波電流計算，實現對電源電流的閉環控制，該演算法簡單、易於實現，模擬結果證實了變結構滑模控制的有效性。 -
Through the electric stimulation training quadriceps muscles and biceps muscles on wushu athlete, observing electricity stimulating influence on feedback speed, on muscle strenth, on musculus endurance, on flexibility and sensitivity, the result find it had best influence through electricity stimulating training quadriceps muscles and biceps muscles at the same time, this can be used as the wushu athlete to train
摘要通過對武術運動員股四頭肌和股后肌群進行電刺激，觀察電刺激對運動員的反應速度、肌肉力量、肌肉耐力、柔韌性和靈敏性五大素質的影響情況，結果表明，同時電刺激股四頭肌和股后肌群對武術運動員綜合素質影響最大，可以對武術運動員進行素質訓練。 -
We design inversion control circuit with cmos figure pll cd4046 act as core and microprocessor 80c196kc act as assistant controller. adopting a control method that combine fuzzy controller and pll control, improve induction heating power succeed in startup. adopting electric current voltage pair closed loop feedback design, with trough route capacitance voltage and trough route electric current act as pair closed loop feedback signal, guarantee induction heating power output accuracy
並對系統主電路的元器件參數進行了詳細的計算；設計了以cmos數字鎖相環cd4046為核心、以80c196kc作為輔助控制器的逆變控制電路；採用了模糊邏輯與鎖相環相結合的控制技術，提高了電源的啟動成功率；採用電流、電壓雙閉環反饋方案，採用槽路電容電壓和槽路電流作為反饋信號，從而保證了電源功率的輸出精度。 -
In chapter 2, the principle of electro - hydraulic proportional flow valve with speed - electric feedback applied in hydraulic elevators are analyzed
第二章關于液壓電梯專用電液比例集成閥的原理方案的設計。 -
By use plc, system can complete function as follow : this auto - control system be applicable to the temperature and smoke and dust the deal the variety quick, control the process is difficult with the operation is ; by the temperature controlor can automatically follow to the wet tower " exit temperature, error in the ? 3 v including ; by to automatically spray fog to lower the electric resistance, with the function for full the electricity equipment accepting the dust ; because of adopting feedback closed loop, and come to a to respond to the speed quick, constant temprature control the accuracy is high ; because of adopting the sensors, and make the system circumstance to leak water quick ; system have many control parameter can set exit control temperature and adjust value low limit by key ; can communication with remote computer and have remote control
通過使用plc ，使該自控系統可以完成如下功能：適用於溫度及煙塵量變化快、控制過程難以操作的場合；通過溫控表自動跟蹤增濕塔出口溫度，誤差達到3以內；通過自動噴霧來降低粉塵比電阻，以此充分發揮電收塵器的作用；由於採取了閉環反饋迴路，達到了響應速度快，恆溫控制精度高；通過使用各種檢測傳感器，使得異常情況泄水快；該自控系統具有多套控制參數，增濕塔出口控制溫度及調節閥下限值可通過按鍵設定；可與上位機通訊，具有「現控遠控」功能。 -
But the budget management is used as the successful experience of the advanced business enterprise in abroad, it usher in, bear comparison with the business enterprise that generate electricity a revolution manage, this thesis just aims at the electric power market condition, expatiating with cost for point of departure of budget management mode, application in plentiful city power station, include the meaning that budget management with function and necessities that budget managements, the business enterprise strategy that budget management adjusts with organizes to regroup, the establishment that budget management carries out to control with feedback and each duty investigates the system centrally, managing to the budget of result proceeding the analysis tallies up, and to the budget the development trend that manage proceed outlook
電力企業過去在計劃經濟管理下，受國家宏觀調控太多，但隨著電力體制改革與中國加wto ，發電企業「競價上網」已成為大勢所趨，發電企業如何在新的市場經濟下，保證成本領先，如何獲取價格優勢，一直困擾著發電企業。而預算管理作為國外先進企業的成功經驗，它的引進，不亞于發電企業管理的一場革命，本論文便是針對電力市場狀況，闡述以成本為起點的預算管理模式，在豐城電廠的運用，包括預算管理的含義和預算管理的作用及必要性，預算管理的企業戰略調整和組織重整，預算管理的編制執行與反饋控制以及各責任中心的考核體系，對預算管理的結果進行分析總結，並對預算管理的發展趨勢進行展望。 -
The proportional flow valve control system with speed - electric feedback applied in hydraulic elevators can eliminate disturbances of nonlinear source such as oil temperature and load change. in this system, the proportional valve plays a key role
採用轎廂速度一電大閉環反饋控制方法的電液比例閥控系統，可以排除油溫及負載變化等因素引起的非線性干擾，極大地提高了液壓電梯的工作性能。 -
In this paper, the development of vibration - resistant interferometry and several adaptive vibration - resistant methods be introduced. by considering the practical condition and the influence of vibration in interferometer, the mechanical & electric feedback vibration - resistant method be designed. the paper ' s content including two parts
本文介紹了抗振干涉技術的發展情況，比較了幾種自適應抗振方法，結合實驗室條件及振動對干涉條紋的影響，確定了機電反饋式自適應抗振方案。 -
Pmsm step motion control for the electric actuator is a new mechatronics device based on new control theory and technology, based on ac step motion control theory, that selects the stator field position as the primary control objects and sets the ac step motion control model based on digital control to attain optimal time control through position feedback
永磁同步電動機步進控制的電動執行器是基於新的控制思想和控制技術的機電一體化新型裝置，基於交流步進控制理論，將交流電動機的磁場位置選為主要的控制目標，建立基於數字控制的交流步進控制模型，使執行器終端設備在給定位置目標下，通過位置反饋達到最優時間控制。 -
On one hand, the problem of " big horse pulls little wagon " is resolved and the working efficiency of motor is improved by optimizing way to control the stator ' s voltage ; on the other hand, an energy automatic processing system of " electric motor generates electricity " is developed, in which, the energy of the feedback of motor generating electricity is processed duly and correctly through real - time switch control of the generating electricity absorbing energy cell and is used at wellhead instead of returning power net
本課題運用新型電力電子技術和計算機控制技術研究開發了一種電機功率因數自調整及節能控制系統，一方面通過對定子電壓的尋優控制，解決了「大馬拉小車」問題，改善了電機的工作效率；另一方面開發了一種電機「倒發電」能量自動處理系統，通過倒發電吸收單元的實時切換控制，將倒發電反饋的能量及時準確地進行處理，使其在井口利用不返回電網。 -
This article solves some theoretical problems of electrostatic suspension based on optoelectronic feedback control. the mechanism of electrostatic induction of conductive suspended objects ( cso ) and electrostatic polarization of insulting suspended objects ( iso ) was theoretical discussed. the equations of charge density on the surface of suspended object caused by electrostatic field were developed. we further provided the equations describing the quantitative relationship of electrostatic forces verses the electrode voltages, the electrode area, the suspending gap, and the electric characteristic of suspended object. these equations show that the inducted surface charge density of cso is greater than the polarized surface charge density of iso, as a result, the electrostatic force acting on cso is larger than that acting on iso, as already proved by the experimental results of measured electrostatic forces. this work provided the theoretical equations and the mathematical models for effectively realizing the optoelectronic feedback control of electrostatic suspension
本文主要討論光電反饋式靜電懸浮的理論問題.研究在靜電場作用下導電懸浮體的靜電感應機制和絕緣懸浮體的靜電極化機理，推導出懸浮體表面的感應電荷或極化電荷的計算公式，以及作用於懸浮體上的靜電懸浮力的計算公式，在理論上揭示了靜電力與電極電壓、電極面積、懸浮間距及懸浮體電學特性等因素之間的關系.結果表明，導電懸浮體表面的感應電荷量比絕緣懸浮體表面的極化電荷量多，因此前者所受的靜電懸浮力比後者大，但兩者均可實現靜電懸浮，這些結論與實驗結果完全符合.本文工作為實現靜電懸浮的光電反饋控制提供了理論依據 -
This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination
本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。 -
This dissertation investigates the electric brake thoroughly. the research includes : 1. investigate the operational principle and the structure of the electric brake, establish the model of every part of it, specially investigate deeply the parts : electric actuator and brake torque feedback, make clear of the concrete structure of it and finish the calculation of the design
研究了全電剎車系統的具體工作原理及整體結構，建立了系統各個組成部分的數學模型，特別針對電剎車系統所特有的部件和結構：電作動機構和剎車力矩反饋控製作了深入的研究，確定了電作動機構的具體結構和設計參數，並在此基礎上建立了系統整體的數學模型。 -
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 this section, the main content is about the transducer and the low - pass filter. the simulation program of wave filter circuit and the stability of wave filter and analogue signal pspice analysis are integrated in chief. these are constituted as a circulatory feedback mode, so that it speeds the process of establishing electric circuit parameters
尤其在低通有源濾波器的分析與設計這部分內容中，將濾波器電路的程序模擬、濾波器穩定性分析和pspice分析設計有機的結合起來，組成了一個循環反饋的分析模式，加快了電路參數的確定過程，縮短了產品的研發周期。
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