pi network 中文意思是什麼

pi network 解釋
π網路
  • pi : n. 1. 希臘字母表的第十六字母 〈Ⅱ π，和英語的 p 相當〉。2. 【數學】圓周率。adj. 〈英學俚〉虔誠的，有道德的，宗教性的 〈pious之略〉。n. ,vt. 〈英國〉＝pie3.
  • network : n. 1. 網眼織物。2. （鐵路、河道等的）網狀系統，網狀組織，廣播網，電視網，廣播[電視]聯播公司。3. 【無線電】網路，電路。4. 【計算機】電腦網路，網。
  1. This thesis introduces the working principle, craftwork requirement, modeling process, control strategies and the realization of lf refining furnance bottom blowing argon control system. through the study and analysis of bottom blowing argon process control system, the thesis discusses the mean neural network model of controlled object and the mathematical models of the exectors, pwm adjustable pressure controller and pcm adjustable flux controller according to the relevant liquid knowledge and relevant data, including design data, test data and running data. to begin with the craftwork reguirement of bottom blowing argon and the actual instance of the control system, it presents the strategies of fuzzy parameters self - adaptive pid control used in pressure difference inner loop and fuzzy plus pi compound control used in flux outer loop which are based on the above modeling in order to carry out the accurate control of argon flux

    本文介紹了lf精煉爐底吹氬過程式控制制系統的工作原理、工藝要求、建模過程、控制策略以及控制系統的實現。通過對精煉爐底吹氬過程式控制制系統進行研究與分析，並根據流體力學的有關知識以及有關數據（其中包括設計數據、試驗數據和運行數據） ，建立起了被控對象的平均神經網路模型和執行機構（即pwm調壓器和pcm調流器）的數學模型。在此模型的基礎上，從底吹氬工藝要求和控制系統的實際情況出發，提出了壓差內環模糊參數自適應pid控制策略和流量外環模糊pi復合控制策略，以實現氬氣流量的精確控制。
  2. The fractional - order control system 、 the theory of fractional - order pi ~ d ~ and analysis method of stability are first discussed. then the model of network traffic control system and its stability are introduced

    文章首先介紹了分數階控制系統、分數階pi ~ d ~控制器的原理和穩定性分析方法，接著給出了基於farima的網路擁塞控制系統模型。
  3. Then, as the substitute of the traditional pi controller, neuron adaptive psd controller is used to alternate the velocity loop of dc driver system, simulation results show that the super - shoot in new system is small and the performance in the way of anti - disturbance and anti - time - varying parameters are higher than the traditional pi controller and robustness of the dc driver system improved greatly, in addition, through analysis of the character of the neuron adaptive psd controller, the paper presents a neural network self - tuning control method for dc driver system in which the diagonal recurrent neural network is used to identify the plant to calculate the plant ' s sensitivity for psd controllers simulation results indicate that excellent static dynamic target was got with this control method and the performance of the system is improved greatly,

    然後，應用單神經元自適應psd控制器改造調速系統的轉速環，代替傳統pi調節方式的轉速控制器。模擬表明，新系統在超調、抗負載擾動和參數時變方面性能優于的傳統的pi控制方式，系統的魯棒性增強。在分析單神經元自適應psd控制器特性后，本文提出用對角遞歸神經網路辯識控制對象，為psd控制器提供靈敏度參數，從而構成一神經網路自校正控制方案。
  4. The gpd3402 inverter and plc being selected to set up open - loop and closed - loop speed regulation systems, applying the invariable v / f control, sensorless vector control, slip compensation, process pi and network control technologies control the hoist motor of the stacker crane

    本文基於gpd3402變頻器的變頻調速方式進行應用開發，對堆跺機提升電機採用變頻調速控制，採用gpd3402變頻器及plc ，組建開環調速系統，分別應用恆壓頻比、無速度傳感器、矢量控制、轉差補償控制技術。
  5. 30 mhz measurement of quartz crystal unit parameters by zero phase technique in a pi - network - part 4 : method for the measurement of the load resonance frequency fl, load resonance resistance rl and the calculation of other derived values of quartz crystal units, up to 30 mhz

    用型網路的零相位法測量石英晶體元件參數.第4部分:石英晶體單元負荷諧振頻率fl負荷諧振電阻rl的測量方法及其他石英晶體元件導出值的計算方法
  6. With regard to the flow regulation of the best - effort traffic, the controllable traffic in high speed computer communication networks, the present paper proposes a novel control theoretic approach that designs a proportional - integrative ( pi ) controller based on multi - rate sampling for congestion controlling. based on the traffic model of a single node and on system stability criterion, it is shown that this pi controller can regulate the source rate on the basis of the knowledge of buffer occupancy of the destination node in such a manner that the congestion - controlled network is asymptotically stable without oscillation in terms of the buffer occupancy of the destionation node ; and the steady value of queue length is consistent with the specified threshold value

    本文從控制理論的角度出發，針對計算機高速網際網路中最大服務交通流即能控交通流的調節問題提出了一種基於多速率采樣的具有比例積分（ pi ）控制器結構的擁塞控制理論和方法，在單個節點的交通流的模型基礎上，運用控制理論中的系統穩定性分析方法，討論如何利用信終端節點緩沖佔有量的比例加積分的反饋形式來調節信源節點的能控交通流的輸入速率，從而使被控網路節點的緩沖佔有量趨于穩定;同時使被控網路節點的穩定隊列長度逼近指定的門限值。
  7. So the paper combined the fuzzy logic control and recurrent neural network, and the recurrent fuzzy neural network ( rfnn ) controller is introduced into the speedsensorless vector control system. moreover, an online parameter training methodology, which is derived from the lyapunov stability theorem and gradient descent method is proposed to increase the learning capability of the rfnn. the rfnn controller has a better performance than the pi controller system ; the effectiveness of the proposed control scheme is verified by simulation results

    因此論文將模糊控制和具有優越動態性能的遞歸神經網路結合起來，取長補短，提出了一種遞歸模糊神經網路控制方法，利用神經網路來實現模糊推理，可動態的調整隸屬函數的形狀、位置以及神經網路遞歸權值，並對其與pi控制器的交流調速控制系統進行了模擬比較，模擬結果表明與普通的pi控制器相比較，遞歸模糊神經網路控制器有較好的動態性能，控制器的收斂速度快、靜差小，系統在遇到參數發生變化和外部不確定性問題時魯棒性、抗擾動性有明顯的提高。
  8. Measurement of quartz crystal unit parameters by zero phase technique in a pi - network - part 3 : basic method for the measurement of two - terminal parameters of quartz crystal units up to 200 mhz by phase technique in a pi - network with compensation of the parallel capacitance c0

    用型網路的零相位技術測量石英晶體器件參數.第3部分:用並聯電容co補償的網路零相位技術測量最高可達200 mhz的石英晶體器件諧振器兩端參數的基本方法
  9. Then, the cc - pwm linear current control strategy is also studied in detail in this paper, and two improved self - adaptive pi controllers are brought forward on the basis of fuzzy logic control theory and fuzzy logic neural network control theory which sufficiently takes advantage of self - learning capability of neural network. they can greatly improve the dynamic performance and cc - pwm system can achieve fast system dynamic response

    論文深入研究了cc - pwm逆變器的線性電流控制策略，並提出了模糊自整定pi控制和基於神經網路的模糊推理自整定pi控制兩種改進型智能pi控制演算法，其中的模糊神經網路pi控制演算法充分利用了神經網路具有很強的自學習能力的特點。
  10. Discussion on the application of pi system in distribution network management

    實時系統在配網運行管理中的應用
  11. Robust stability of predictive pi control algorithm for delay network

    控制演算法魯棒穩定性分析
  12. Measurement of quartz crystal unit parameters by zero phase technique in a pi - network - part 2 : phase offset method for measurement of motional capacitance of quartz crystal units

    用型網路的零相位法測量石英晶體器件參數.第2部分:石英晶體器件動態電容測量的相位補償法
  13. Because of long - time relations of uncontrolled network traffic, these integer - order controller can not get good purpose. the fractional - order pi ~ d ~ is used as the aqm controller and is used to manage the tcp queue

    本文嘗試採用分數階pi ~ d ~控制器作為aqm控制器，對tcp隊列進行管理，試圖將其控制在閾值附近。
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