overshoot of speed 中文意思是什麼

overshoot of speed 解釋
速度增量
  • overshoot : vt 1 把（子彈）打得過高（而未打中），打得過遠；在射擊上勝過；【軍事】彈著超越（目標）；超過（界限...
  • of : OF ＝Old French 古法語。
  • 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...
  1. 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。
  2. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高
  3. In the speed control system, because of the system ’ s low speed and high precision, incremental pid control algorithm is adopted. in the position control system, a dual mode control algorithm is designed, which can not only guarantee the rapidity in the position control, but also realize the small overshoot accurate positioning

    在控制系統的設計中，針對本系統轉速低、精度高的特點，在速率控制系統中，採用增量式pid演算法;在位置控制系統中，設計了雙模控制器，以保證系統定位過程的快速性和小超調精確定位。
  4. Under different conditions, for example, with variable additional resists or system parameters, the system applies the variable structure controller to adjust the speed system with train. the results of simulation show the variable structure control can achieve a fast response, high stability under parametric variations and disturbances, with no overshoot. additionally, it has stability for the adjustment speed of atcs and provides the comfortable speed, for the travelers, and improves the system performance

    採用變結構理論分析在不同情況下，如附加阻力變化，系統參數變化等，模擬滑模變結構控制器控制的列車自動調速控制系統，模擬結果表明，滑模變結構控制的列車自動調速控制系統能實現速度響應快、無超調，系統對參數的攝動和外部干擾不敏感，實現列車自動控制系統的速度調節的穩定性，保證旅客的舒適，改善了系統性能。
  5. The experiment result shows that by adding this modification algorithm into normal fuzzy controller, overshoot of transition process that system responds to the step signal will be further decreased, and convergent speed will be further increased

    實驗結論說明，通過在常規模糊控制器加入這種規則校正演算法，可進一步降低系統對階躍輸入信號響應的過渡過程的超調量，並提高的收斂速度。
  6. The contradiction between respond speed of normal pid control system and overshoot is solved by joining a non - liner gain before a liner pid controller with constant gain

    通過在一個線性具有固定增益的pid控制器前串聯一個非線性增益來對系統進行調節，解決了常規pid控制系統的響應速度和超調量之間的矛盾，最終使系統達到較好的動態性能。
  7. To restrain the time - delay of the startup phase of the temperature and improve the response speed, the fuzzy - pi controller with predictive control is adopted to the startup phase. this control mode can decrease the system overshoot and ensure the system rapidity. the predictive control can restrain the time - delay of the controlled object

    為了解決溫度啟動過程中的時間滯后，改善系統的響應速度，採用單獨的溫度啟動控制策略，啟動階段採用帶預測的模糊- pi控制器，在保證系統的快速性的基礎上盡量減少系統超調，同時對控制對象的時間滯後有抑制作用。
  8. The system based on pid control theory has characteristics of fast response speed and higher peak overshoot, and it also has a good performance of tracking, but it is lack of ability of disturbance rejection. because smvs control method is insensitive to the variations of the model parameters, nonlinear and exterior noises, the attitude stabilization system designed based on smvs has fast response speed, higher ability of disturbance rejection and has no peak overshoot, namely, the system is robust

    模擬結果表明，基於pid控制規律設計的系統具有響應速度快但超調大的特點，系統的跟蹤性能較好，但抗干擾能力較差；滑模變結構控制方法因為其對模型參數的變化、非線性和外擾噪聲的不敏感性，設計的聲納基陣姿態穩定系統無超調，響應速度快而且抗干擾能力強，具有很好的魯棒性。
  9. Simulation of computer and dynamic experiments show : the sofpss has such characteristics as small overshoot, fast response speed, avoidable micro - amplitude oscillation and is not sensitive to changes of operating modes and external disturbances. the sofpss can effectively damp low - frequency oscillation in a large range and takes on strong adaptability

    計算機模擬和動模實驗結果表明： sofpss超調小、響應速度快，且避免了微幅振蕩；對運行狀態的變化以及外界干擾不敏感，能夠在較大的運行范圍內有效地抑制振蕩，適應能力較強。
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