speed change control 中文意思是什麼

speed change control 解釋
速度變換控制器
  • speed : n 1 快，迅速。2 速率，速度。3 （汽車的）變速器，排擋。4 （膠片，照相紙）感光速度。5 〈古語〉興隆...
  • change : vt 1 改變，變更，變換，變革。2 交換；兌換；把（大票等）換成零錢；把（支票等）兌成現金。3 換（車、...
  • 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. This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective

    本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷，利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法，提出了在液壓系統中加一個定差減壓閥的新思路，較好地解決了液壓伺服系統存在的上述問題。
  2. The control system of mould level is crucial to improve the slab quality in the continuous casting process, pid controller is used in the traditional mould level control, and it has some defaults, such as : at the start - up or finishing period of casting or during the changeover of tundish, pid control has a bad effect, its overshoot is large and its transient time is long ; the erosion of the tundish stopper and the submersed nozzles lead to the accuracy of control become bad ; the abrupt falloff of block in the submersed nozzles makes the level acutely fluctuate, and pid control can not overcome the disturbances resulted from the change of casting speed

    結晶器液位控制系統是提高連鑄產品質量的關鍵環節，傳統的連鑄機液位控制方法採用常規的pid控制，存在如下不足：開始、結束澆注和換中間罐澆注時，控制效果差，超調量大，過渡時間長；塞棒頭和浸入式水口被腐蝕后引起控制精度差；浸入式水口堵塞物的突然脫落所引起的液位劇烈波動；無法克服拉速波動引起的擾動。
  3. A closed pulse width modulation ( pwm ) regulating speed system for dc servo - motor is presented, it is composed of avr microcontroller, pwm power driver, unit of speed detection using encoder and a serial communication interface, etc. fuzzy pid algorithm is employed to control the speed and position of wmr. the method can solve effectively some problems such as the uncertainty of wmr ' s model, the varieties demand, the change of situation

    其次，設計了基於avr微控制器（ at90s8515 ）的移動控制系統，其中主要包括pwm功率驅動、測速單元和串列通訊模塊等：對機器人速度、位置控制採用模糊pid演算法，較好地克服了移動機器人模型的不確定性、轉速位置控制要求的多變和環境改變等因素的影響。
  4. Finally, we can not use electric power but the engine of bus or subsidiary engine to drive air compressors of bus air conditions. because the change range of turnaround speed of engine is very wide, that brings difficulties in controlling the rate of flow of cold - producing medium. in the control of bus air - conditions, preventing evaporator from freezing to make the air - conditions work with high efficiency and controlling the temperature of railway carriage are the basic tasks in air - condition control

    與一般的建築空調相比，汽車空調的工作環境惡劣，條件差，控制難度要增加很多，主要體現在以下幾個方面：一是車外熱負荷變化大，難以確定控制參數；二是要求空調負荷大，而且要控制空調使其降溫迅速：三，不便於用電力作為動力源，必須用汽車發動機或輔助發動機來帶動壓縮機，當採用汽車發動機作為動力源時，由於汽車的車速變化大，發動機轉速的變化可從600r min到4000r min ，壓縮機轉速與發動機轉速成正比，其轉速變化高達7倍，給空調系統製冷劑流量控制帶來困難。
  5. The fast - speed development of computer network technology and information technology leads to the ceaseless change of manufacturing, the network numerical control ( nnc ) - a new technology, was arisen at the historic moment. after a deep research collection and analyzing of information internal and external on information integration technology, direct numerical control ( dnc ) interface technology, network technology and computer communication technology, the writer brings to the construction model of nnc and realizes real - time communication of nnc by program, discusses the function of basic information management of nnc

    本文通過對國內外有關的信息集成技術、 dnc （直接數控）介面技術、網路技術和計算機通訊技術的資料收集、分析比較和研究探討，給出了網路數控的總體結構模式，並通過深入分析研究，實現了網路數控系統的實時通訊等部分，探討了網路數控系統的基礎信息管理等功能。
  6. In this paper, several scheme of vscf is compared firstly, of which gets doubly - fed generating mode. doubly - fed vscf wind power generating system uses a doubly - fed induction generator, which rotate speed can be able to change with wind turbine, and it ensures a constant - frequency output, by controlling the frequency of current input into rotor windings. in vector trans control system, the control of stator active power and the control of stator reactive power can be essentially decoupled, and the former is via torque component and the latter is via exciting component of stator current

    本文首先比較了幾種變速恆頻方案，從中選擇了雙饋式變速恆頻方案；它運用雙饋電機的工作原理，允許發電機轉速變化，而在電機轉子側接入低頻勵磁電流，通過控制該電流的頻率，保證雙饋電機定子輸出的頻率恆定；再結合矢量控制技術，通過調節轉子電流來控制定子電流的轉矩分量和勵磁分量，相應獨立地控制發電機輸出的有功功率和無功功率。
  7. In this dissertation, two kinds of optimization, methods are proposed. firstly, only these linking weights corresponding to the control rules that affect the control performance significantly are updated in order to reduce the compute works and speed up the training progress. secondly, the updating step is adjusted adaptively in accordance with the error and the change of error of the system based on the t - s model to get better performance

    針對模糊神經網路控制器一般存在著在線權值調整計算量大、訓練時間長、過度修正權值可能導致系統劇烈振蕩等缺點，提出了兩種模糊神經網路控制器的優化方法：在線自學習過程中僅對控制性能影響大的控制規則相關的權值進行修正，以減小計算量，加快訓練速度；基於t - s模糊模型，根據偏差及偏差變化率大小動態自適應調節權值修正步長，抑制控制器輸出的劇烈變化，避免系統發生劇烈振蕩。
  8. The cooling system for engine adopted hydraulic drive and control technology to control the speed of the fan : the chip adjust the control - current of the proportional value, which used in the engine cooling system, to control the speed of the fan. and the size of the control - current is according to the coolant temperature, coolant temperature change rate and target temperature. as for as the hydraulic cooling system we used a motor to drive and control the fan ’ s work or stop according to the temperature of the hydraulic oil

    該系統的特點及其實現的功能為:電液混合驅動方式改變了工程機械冷卻裝置驅動方式單一的缺點，發動機冷卻系統採用了電液比例技術控制風扇轉速;單片機可以根據冷卻液溫度、冷卻液溫度變化率和目標冷卻液溫度調節液壓驅動系統中電液比例閥的控制電流，進而控制液壓油的流量，即可以實現冷卻風扇轉速的連續調節;液壓油冷卻系統採用了電動機驅動，然後由單片機根據液壓油的溫度控制電動機的起動和停止。
  9. Basically like “ adaptive approach ”, the method can control triangulation density with respect to the change of normal curvature of the surface generating a small number of triangular facets, and thiny triangles, degenerate triangles and “ cracks ” in 3d space will not occur, but the speed of the algorithm is higher than that of adaptive one

    該方法基本上可以像「自適應」方法一樣，根據曲面的法曲率變化來控制三角化剖分的密度，生成的三角片數量較少，並且可以避免在三維空間產生狹長的三角形、退化三角形與「裂縫」 ，運行速度明顯比自適應方法快。
  10. To regard market demand as driving force and optimize the business procedure of each link that enterprises distribute system : purchase management, allot management, sale management, provide and deliver management, stock control, customer management, settlement management, pricing system management, market analysis, etc., and make enterprises grasp all kinds of information and make the fast reaction to the change of market demand in time, thus promote the each sale nodal connection of enterprises and the distribution system. with the shortest supply route, the fastest reaction speed, the minimum cost, individualized products and service, and improve the customer s satisfaction

    以市場需求為驅動力，優化企業分銷體系各個環節的業務流程：采購管理調撥管理同城異地銷售管理配送管理庫存管理客戶管理結算管理價格體系管理市場分析等等，使企業及時掌握各類信息並對市場需求的變化做出快速反應，從而增進企業與分銷體系各銷售節點的聯系，以最短的供應路線最快的反應速度最低的成本個性化的產品與服務，提高客戶的滿意度。
  11. Accountant report calculates change and manual fiscal distinguishs main show to be in the following respects : ( 1 ) operation tool is different ; ( 2 ) the carrier of accountant data and information is different ; ( 3 ) data processing speed, accuracy and deepness development are used different ; ( 4 ) book - keeping regulation and correct wrong method differs ; ( 5 ) program of zhang wu processing is different ; ( 6 ) the method of account setting and zhang book that register is different ; ( 7 ) the constituent system that the accountant works is different ; ( 8 ) money is met the quality of personnel is different ; ( 9 ) built - in control system is different

    會計電算化和手工會計的區別主要表現在以下幾個方面： （ 1 ）運算工具不同； （ 2 ）會計數據與信息的載體不同； （ 3 ）數據處理速度、準確性與深度開發利用不同； （ 4 ）簿記規則與更正錯誤的方法不同； （ 5 ）賬務處理程序不同； （ 6 ）賬戶設置和賬簿登記方法不同； （ 7 ）會計工作的組織體制不同； （ 8 ）財會人員的素質不同； （ 9 ）內部控制制度不同。
  12. Change electro - control speed regulating of skip lifter into numerical - control cascade control

    箕斗提升機電控改造為數控串級調速
  13. And analyzed and settled the problems of control system in debugging and producing. success in change of high - speed have brought large economic and social benefits ! the succeed example of low cost automation are provided for the decision and popularization and implementation of changes for old equipment in pangang corporations

    攀鋼線材廠線材軋制高速化的改造成功，具有很好的經濟和社會效益，特別是該項目的低成本自動化設計方案為自動化控制系統在攀鋼及相似企業中舊設備改造時的決策、推廣、實施提供了一套較為有效的、可供借鑒的方法和模式。
  14. This paper is based on the working theory of anti - lock braking system, the properties of fuzzy control, the modelling for vehicle system and vhicle tyre. by using of wheel speed sensor, the gather of wheel speed is practiced by filter, amplier, modifying of wheel speed. based on the wheel slip ratio of abs. given vehicle speed and wheel speed, the wheel slip ratio is computed. the error and error change ratio of slip ratio is obtained by given refering slip ratio. which is the input of fuzzy control which comprises of input fuzzy

    本文根據防抱死制動系統的工作原理，模糊控制的性能特點，車輛系統模型及車輪輪胎模型，利用輪速傳感器，對輪速進行濾波、放大、整形等實現了車輪速度的採集。採用基於車輪滑移率的防抱控制理論，根據車速、輪速來計算車輪滑移率。由參考滑移率計算出滑移率的誤差、誤差變化率並作為控制器的輸入變量完成了模糊控制的模糊化、模糊推理、模糊判決。
  15. Abstract : the actual sea trial result of h robust autopilot tested on yangchenghu oil tanker is presented, which certified the autopilot can resist the disturbance of sea states with good control performance and has good robustness to model uncertainty caused by the change of surge speed etc

    文摘:給出了h魯棒自動舵在陽澄湖號油輪上實際海試的結果，證明了該自動舵能夠抑制海況干擾，具有良好的控制性能，對航速變化等產生的船舶模型攝動，具有良好的魯棒性能
  16. Nonlinear directional coupler ( nldc ) is a switch used in optical network. w. s. man had studied transmission controlling with ground state soliton through nldc, it is obviously not available to used in superhigh speed network ; and mary j. potasek had studied the self - coupling with ultrashort solitons in nldc, self - coupling is difficult to control the signal transmitting. i has studied the transmission controlling with ultrashort solitons ( < 100fs ) in nldc, similarly i use a controlling pulse to control the signal pulse, it is the intensity of controlling pulse to decide the signal change its direction or not

    非線性定向耦合器（ nldc ）是用在光網路中的光開關器件，它主要用在全光網路中， w . s . man等研究過基態孤子在nldc中的傳輸控制，便於對全光網路中數據的正確傳輸，由於目前研究集中在100fs的超短脈沖傳輸特性上，顯然基態孤子的特點不再適用於超高速網路； maryj . potasek等就超短脈沖在nldc中的自耦合做了研究，在光網路中自耦合任意性太大，不利於控制脈沖的傳輸。
  17. On the basis of investgation on the related literature of electronic speed governor at home and abroad, this proper control parameters are obtained through the experimental research of the pid digital control parameters with the orthogonality method and through the analysis of the speed change of gasoline engine rev. the electronic speed governor designed hereby performs its controlling fuction through programs, the stable rev and static timing rate of which are also set and controlled by software, has, therefore large universality and function flexibility. so for different types of gasoline engines, the obtainment of relevant parameters and the designing of relevant programs suffice to realize the control functions of the electronic speed governor

    本文在分析研究國內外有關電子調速器的基礎分析方法及其研究狀況的基礎上，採用pid數字控制，並用正交試驗方法對pid數字控制的控制參數進行試驗研究，得到了合適的控制參數。所設計的電子調速器是靠控制軟體來實現調節和控制功能，穩定轉速、穩定調速率等都可以進行程序設定控制，具有很強的通用性和功能擴展能力。對不同型號的汽油機，只要經試驗取得合適的控制參數，編制出相應的控製程序，就可以使用此電子調速器進行轉速控制。
  18. Abstract : this paper proposes an self - adaptive speed - accommodating control circuit, which can get the speed - error, and can test the change of frequency of feedback signals of the single phase ac tacho generator through self comparing and automatically corrects the speed

    文摘:文章介紹了通過自比較來檢測錄音機主導軸單相永磁交流測速發電機反饋信號的頻率變化，從而獲得速度誤差，並自動校正轉速的一種自適應速度調節控制電路。
  19. Can change power and respond speed by electric control equipment

    可通過電控裝置改變電壓的大小改變應答速度
  20. The parameters which the rotate speed change, working resistance and depth are included synthetically control the hydraulic hitch in tractor. the tractor is working at best state. the performance sof tractor are best expect interferers

    液壓懸掛系統是拖拉機作業機組的一個組成部分，對液壓懸掛系統和液壓加載系統的性能進行最優控制理論分析和控制方法的研究，是保證拖拉機作業機組達到最優性能的基礎。
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