close loop control 中文意思是什麼

close loop control 解釋
閉環控制
  • close : vt 1 關（窗等），閉（眼等）；蓋（蓋子等）；鎖閉，封閉，塞，隔絕。 ★對 door box drawer 等，口語較...
  • loop : n 1 （用線、帶等打成的）圈，環，匝，框，環孔，線圈；【醫學】（常 the loop）宮內避孕環。2 環狀物，...
  • control : n 1 支配，管理，管制，統制，控制；監督。2 抑制（力）；壓制，節制，拘束；【農業】防治。3 檢查；核...
  1. Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor

    在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。
  2. Novel close - loop speed control technique for brushless direct current motor

    新型無刷直流電機速度閉環控制技術
  3. This low time constant is consistent with the stability requirements of close-loop control systems.

    這低時間常數是符合閉迴路控制系統中穩定性的要求的。
  4. For the purpose of boosting voltage, because of the effect of the load r on q, the proposed close - loop control method is the best choice to ensure the stable output voltage

    當利用諧振網路提升整機輸出電壓時，由於負載r對q值的影響，因此必須採用所提出的閉環控制方法才能保證良好的穩壓功能。
  5. One robust compensation adjustment is presented, based on which and h ? mixed sensitivity control method, then a new h - control method is brought forward and is applied in the pressure - adjusting loop of this system. h mixed sensitivity control method is applied in the position - adjusting loop. system simulation and experiments prove that using these two control methods, performance of close - loop system is very good and excellent robustness is obtained too

    在此基礎上，針對h _控制混合靈敏度優化策略的特點，提出了一種新的h _控制方法，並將其應用到卷取機步進控制系統的壓力控制環節，同時首次將h _控制混合靈敏度優化策略應用於卷取機步進控制系統的位置控制環節，系統模擬和物理系統模擬實驗證實這兩種控制方法不僅保證了閉環系統特性，還具有良好的魯棒性。
  6. This thesis make a study on vector - contorl wvf system of asynchronous motor. in the course of study, making use of the mathematical model of asynchomous motor in mt axes. then both open - loop control system and close - loop vector - control system are respectively simulated with simulation block simulink in matlab

    本文對異步電動機變頻調速系統進行了研究，利用異步電動機在二相同步旋轉mt坐標系下的數學模型，使用matlab中的模擬工具箱simulink分別對開環控制系統和閉環矢量控制變頻調速系統進行了模擬。
  7. Neural network control is an important mode of intelligent control, and it is widely used in branches of control science, first, the architecture and the learning rule ( error back propagation algorithm ) of multiplayered neural network which is widely used in control system are presentedo especially, the paper refers to the architecture of diagonal recurrent neural network and its learning algorithm - - - - - recurrent prediction error algorithm because of its faster convergence with low computing costo next, before introducing the neural network control to the double close loop dc driver system, the controllers of current and velocity loop are designed using engineering design approach after analysis of the system, simulation models of the system are created

    神經網路控制是智能控制的重要方式之一，它廣泛應用於自動控制學科各個領域。本文首先敘述了控制系統中常用的多層前饋網路結構及演算法（ bp演算法） ，特別提及了能夠較好描述系統動態性能的對角遞歸神經網路和在用遞推預報誤差演算法訓練drnn時取得了較快的收斂速度。其次，應用工程方法分析設計了tf - 1350糖分離機的電流、轉速雙閉環直流調速系統的控制器，作為引入神經網路控制的設計基礎，並建立了系統的模擬模型。
  8. On the basis of these, a simplified iced aerodynamics model is established, describes the effects of aircraft icing on aerodynamic parameters. main principle and implement method of iced aircraft envelope protection system are proposed. after ascertain iced aircraft envelope, for pilot and autopilot, open - loop and close - loop aircraft envelope protection control law respective designed, ensure the aircraft will efficiently follow the flight path specified by the pilot in the safe - flight envelope

    在此基礎上，建立了簡化的飛機結冰氣動模型，以描述結冰對氣動參數的影響;給出了結冰飛行包線保護系統的基本原理及實現方法，在計算確定結冰飛行包線后，對於人工駕駛、自動駕駛飛行兩種情況，分別設計了開環、閉環飛行包線保護控制律，保證飛機在安全飛行包線內沿著預定的航線飛行。
  9. 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。
  10. Half close - loop control ( hclc ) for time - delay and large inertia system with time - variant was proposed. the chief control object of hclc based on bounding control is to satisfy the bounding stability of the out variables, and the second control object of hclc is to satisfy zero error of the out variables. hclc for complex system just like the control process of human controllers

    針對時變滯后大慣性系統提出了半閉環控制，基於有界控制的半閉環控制的控制目標首先是要滿足輸出的有界穩定，其次才是滿足輸出的無差性，是對人類控制器控制復雜系統的有效模擬。
  11. The actuators are nozzle vetor controller, rotational measuring valve controller and vane controller. the smart actuators are capable of data collection, self - calibration, power - on self - test and local close - loop control, etc. a simplified mathematical model for the vector nozzle is constructed, and the relationship between the state of vector nozzle and actuator cylinders ’ position is obtained. the effect of the position controller is tested

    實現了智能執行機構的數據採集、自校準、上電自檢測和局部閉環控制等功能，建立了矢量噴口實驗件的簡化數學模型，推導了矢量噴口狀態和作動筒位置之間的關系，並在含實物平臺上對位置控制器的效果進行了實驗驗證。
  12. The simulation model of pmsm close - loop control system is presented based on pwm inverter model and switching vector table model set up by the author and pmsm model in matlab. the model is proved correct from the simulation result

    然後在自行構造逆變器，開關電壓矢量表等模塊的基礎上，利用matlab中的永磁同步電機模型，實現了永磁同步電機閉環控制系統的模擬模型，模擬結果驗證了方案的正確性。
  13. These two methods can alleviate the inrush current. this paper research voltage and current close - loop control flyback converter and isolated boost converter with peak current mode pwm controller. the start process of flyback converter is divided into three stages : inrush current, current regulating and voltage regulating stages

    分析了兩個起動過程: 1 ）電壓電流雙閉環控制flyback變換器的起動過程，可分為電流過沖階段，電流調節器調節階段和電壓調節器調節階段三個階段。
  14. The design schemes of the control system are important parts of the paper. first the writer designs an open - loop and close - loop control system by mc33035 and mc33039. the control system is applied for low - power motor

    電機控制系統設計是本文論述的重點，作者首先採用專用集成晶元mc33035和mc33039設計出一個電機開環-閉環控制系統，這是一個適合小功率電機的控制系統。
  15. Close - loop control system of the optical klystron magnetic gap of chg - fel

    光學速調管磁極間隙全閉環控制系統
  16. In chapter 2, 4, author detailed the characteristic, technical trend and relevant performance of ac servo system, and give a particular introduction of close loop control

    在第二章及第四章中，詳細介紹了伺服數控系統的特點，發展趨勢及相關的性能指標，並對相關的閉環控製作了闡述。
  17. The result shows that forming a high capability ac control ic using this ip as an embedded core with other cpu or dsp core can efficiently shorten the cpu processing time and constitute high performance close - loop control system. some of the ips about the communication between d / a convert, i2c devices and control ics are also created

    這種速度估算ip核作為一種通用的片內外設形式（以硬體形式完成軟體功能） ，和裸mcu （或dsp ）核製成電機控制專用晶元，可應用於各種無速度傳感器的電機控制場合。
  18. In the vwf system of induction motor, it is indispensable to need a speed - sensor in order to realize speed close - loop control. some matters that are brought by speed - sensor fixed and the system running condition usually become the system ' s a breakdown root and low the system ' s dependable, which is in contravention of people ' s original intention to use induction motor

    在感應電動機變頻調速系統中，為了實現轉速的閉環控制，速度傳感器是必不可少的，速度傳感器的安裝及其運行環境所帶來的問題，往往成為系統的一種故障源，進而降低了系統的可靠性，這有悖於人們採用感應電動機的初衷。
  19. According to the structure characteristics and motion rules of the new type nursing robot, the close loop control system of this new type nursing robot is designed and made with the virtual instrument developing software labwindows / cvi, mcu, piezoelectric ultrasonic motor and high precision optical incremental encoder, which can make the robot reset and rotate by the predefined tracks. at the same time, in order to make the nursing robots used more widely where intensity, precision and price are not high, another control system is designed with the step motor, virtual instrument developing software labwindows / cvi, multi - function daq card pci1711, linear power amplifier. in order to use the nursing robots in acupuncture therapy, a simple finger is designed

    在對其結構特點和運動規律分析的基礎上，本文以虛擬儀器編程語言labwindows / cvi為軟體開發工具，以單片機為控制核心，以超聲電機為驅動元件，以高精度光電編碼器作為速度和角位移檢測裝置，實現了機械臂的復位以及預定軌跡的閉環控制系統的開發;同時為適應一些強度不大、精度要求不高的應用場合，也為降低成本，簡化控制裝置，推動新型護理機械臂短期內應用推廣的需要，以目前應用較為廣泛、控制技術較為成熟的步進電機為驅動元件，用labwindows / cvi開發環境、 pci1711數據採集卡以及線性功率放大器開發了一套控制系統，實現了手臂的復位、勻速運動以及預定軌跡的控制系統;為推廣護理機器人在針灸理療中應用，設計了簡單的手指機構並利用labwindows / cvi開發環境，以及智能材料驅動器? ?層疊式壓電驅動器，進行了手指的抓取以及對驅動對象的轉動控制。
  20. In dtc system, the concept of space vector is introduced to analyze and control the ac motor, the electromagnetic torque and flux are caculated and controlled in the stator reference frame, and the optimal pwm gating signas are generated to control the inverter according to the output of the bang - bang regulator. in this paper, the dtc system is designed based on dsp. a speed estimation method is derived detailedly and the sensorless speed close - loop control is conducted. in this system, there are some problems, such as flux drift and torque ripple. to resolve these problem, a modified flux caculation method and some measures such as speed lpf, torque slide filtering are adopted. the system performance is enhanced by these mersures

    直接轉矩控制採用空間矢量的概念來分析異步電機的數學模型和控制其各物理量，直接在定子坐標系中計算和控制轉矩和磁通，藉助于離散的兩點式調節（ bang - bang控制）產生pwm信號，直接對逆變器的開關狀態進行優化控制，以獲得轉矩的高動態性能。本文採用dsp設計了直接轉矩控制系統，詳細推導了速度估計方法，進行了無速度傳感器的速度閉環控制。
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