閉環的 的英文怎麼說
中文拼音 [bìhuánde]
閉環的
英文
loop-locked-
This control may be closed loop or open loop.
控制可以是開環的也可以是閉環的。It is generally impossible to obtain the analytic optimal guidance law for complex nonlinear guidance systems of homing missiles, and the open loop optimal guidance law is often obtained by numerical methods, which can not be used directly in practice. the neural networks are trained off - line using the optimal trajectory of the missile produced by the numerical open loop optimal guidance law, and then, the converged neural networks are used on - line as the feedback optimal guidance law in real - time. the research shows that different selections of the neural networks inputs, such as the system state variables or the rate of los ( line of sight ), may have great effect on the performances of the guidance systems for homing missiles. the robustness for several guidance laws is investigated by simulations, and the modular neural networks architectures are used to increase the approximating and generalizing abilities in the large state space. some useful conclusions are obtained by simulation results
對于復雜的非線性導彈制導系統,很難求得其解析的最優制導律,只能求得開環的數字解,不能適用於具有時變不確定性的導彈制導系統.利用神經網路的學習和推廣能力,對開環的數字最優制導律進行離線的學習,作為閉環的神經最優制導律在線應用.研究分別選擇系統狀態變量和視線角速率等不同的神經網路輸入對制導系統性能的影響,以及各種制導律的魯棒性問題,並採用模塊化神經網路結構提高神經網路的學習和推廣能力,模擬結果得到一些有益的結論The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically
鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平,本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案,第一種方案將尺寸鏈中各組成環能取的極值組合起來,自動列方程組,求解每個組合情況下的封閉環尺寸,最後比較這些結果,得出封閉環的最大最小值;第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影,之後再分析各尺寸環投影分量的增減性,並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法,綜合組成環各投影分量的增減性,然後自動列出方程組,最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸;第三種方案以蒙特卡洛法為原理,在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數,模擬實際大批量生產中的零件尺寸分佈情況,以更經濟更合理的方式分析、計算封閉環尺寸。Mc closed - loop control method based on dsvm is presented, in which the rms value of output line voltage is taken as feedback and pi regulator is adopted
提出了雙空間矢量調制矩陣變換器的輸出電壓有效值閉環的控制方法,將矩陣變換器輸出線電壓有效值作為反饋值,採用pi調節器實現系統的閉環控制。Its concrete method is : firstly, precondition the program code. secondly, collect information which will be put use to simulate. lastly, make use of the information collected to simulate to compute, and associate with the controlled object ’ s program module to carry out the multi - cyclical closed - loop simulation
它的實現過程是:先對控制計算程序代碼進行預處理,接著提取程序代碼的結構信息和變量信息,最後利用提取的信息模擬代碼做控制計算,並調用受控對象程序模塊,得到反饋信號變量的實時值,實現多周期閉環的控制計算模擬。To solve the poor precision problems of dataglove angle outputs, this paper builds human hand kinematic model and fingertip position error model, and gets the precise parameters of human hand model by the parameters identification based on fingertip positions closed loop method
本文針對數據手套關節角度輸出精度低等缺點,建立了人手的運動學模型和各指尖位置的誤差模型。基於指尖位置閉環的方法完成了人手模型的參數識別,提高了人手模型幾何參數的精度,得到了較精確的人手手指指尖位置。The paper lucubrated the control theory of induction motor ' s vector transform and the method of calculating speed by induction motor ' s torque current weight, based on which, the paper designed a close - loop speed - sensorless vector control vwf system and realized the system in matlab / simulink
本文深入研究了感應電動機矢量變換的控制理論和利用電動機轉矩電流分量進行速度推算的方法。在此基礎上設計了一個閉環的無速度傳感器矢量控制變頻調速系統。Based on the small - signal model, the three - level converter is taken as the example to illustrate the design of the closed - loops
然後以buck三電平變換器為例,分別設計其輸出電壓閉環和飛跨電容電壓閉環的補償網路,最後進行了模擬和實驗驗證。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。The paper analyzed the basic theory and mathematic model of three phase voltage pwm inverter and proposed one kind of control strategy based on the voltage - current double - loop. it used the exterior loop to control the voltage the eps outputted, and used the inner loop to control the current. simulation testified that the control method could improve the dynamic response character and interference rejection ability
在建立三相電壓型pwm逆變器在兩相同步旋轉坐標系下的數學模型的基礎上,提出了一種三相電壓型pwm逆變器基於電壓電流雙閉環的控制方法,利用電壓外環實現對輸出電壓的穩定控制,電流內環實現對輸出電流的控制,模擬證明該方法有效地改善了系統的動態響應及抗干擾能力。It is proved to be feasible to apply the barcode technique into production management, which makes a real closed - loop erp system being true
應用結果表明,條碼技術運用於在制品的生產過程管理是切實可行的,真正實現了閉環的erp系統。In this paper point to point control, constant frequency control and up and down frequency control are studied, in which current lagging loop control method is used to restrict over currents. and using flux tracking method, position open loop, position close loop control system are also studied. and research results indicate that larger current ripples are restricted by means of subdividing space vectors
本文以永磁同步電動機為研究對象,分別對同步電動機的點動控制、恆頻控制以及升降頻控制進行了分析與研究,研究中採用了電流滯環控制方法,可有效地限制過電流現象;此外採用磁鏈跟蹤法對位置開環和位置閉環的步進控制系統分別進行了探討與研究,研究表明,採用矢量細分后,可有效地減小電流波動。In this system, according to the performance requires of servo - system in rapid character, high precision, drive - stiffness and high - speed stability, we adopted a closed - loop control structure that includes three closed - loops : position closed - loop, speed closed - loop and current closed - loop
根據伺服系統對快速性、高精度以及傳動的剛性和高的速度穩定性等方面的性能要求,系統採用了位置、速度、電流三閉環的控制結構。After saturation the specimen is fitted into the lower half of a special cell, being sealed by o-rings.
試件浸透水后,便裝入一個專用的O形封閉環的容器的下半部中。For this paper, it ’ s an exploration for the improvement of the program test. in this paper, a new idea of the program test is put forward
本論文的目的在於提出一種多周期閉環的控制計算模擬方法,為改善當前控制計算程序測試狀況進行一種有益的探索。On the other hand, inertial navigation must be integrated with extraneous information feedback to form a stable and closed - form integrated navigation system, so as to limit the error accumulation
另一方面,慣性導航必須引入外部信息反饋,形成穩定的閉環的組合導航系統,以抑制慣性導航誤差的發散。In the process of close - loop vector - control system, the author designed a model of current delay - loop pwm vector - control wvf system which includes speed and magnetic double close - loops and rea lized it in simulink
在閉環控制系統的模擬中,設計了一個速度、磁鏈閉環的電流滯環型pwm變頻調速系統,並且使這個閉環系統在simulink中加以實現。With no manual sorting required, we need no postal delivery but instead utilize our own delivery team - which guarantees that the delivery arrives on time and correctly. the original open delivery management mode was changed to a closed mode, with stronger control and effective feedback
由於不再需要人工分揀,我們不必再交郵政投遞,而成立了自己的投遞隊伍,保證了投遞速度和投遞準確率,且控制有力,反饋有效,將原先的開放式的投遞管理轉變為閉環的管理模式。This paper make a study of controller on permanent magnetsyn - chronous motor. the permanent magnetsyn - chronous motor has many virtue such as simply structure and simle solidity etc. with this excellence. it has more and more uses in industry and agriculture. the idea of this paper is to control permanent magnetsyn - chronous motor system through vector control. to solve the problem of pid regulator, we use the fuzzy control and self adaptive pid
本文設計的思路是採用轉子磁通定向的矢量控制技術,主電路採用spwm和交-直-交電壓型逆變器,其中spwm採用sa4828晶元直接產生,在控制器的實現方面,採用了tms320lf2407型dsp晶元作為主控板cpu ,實現了電流、轉速雙閉環的控制系統。Fibreboard drums - removable head open head drums with closing rings with a nominal capacity of 15 l to 250 l
纖維板柱桶.額定容量為15升至250升的帶封閉環的可移動頭分享友人