比值控制器 的英文怎麼說
中文拼音 [bǐzhíkòngzhìqì]
比值控制器
英文
ratio controller,- 比 : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
- 控 : 動詞1 (告發;控告) accuse; charge 2 (控制) control; dominate 3 (使容器口兒朝下 讓裏面的液體慢...
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 比值 : specific value; ratio比值法 ratio method; 比值計 ratio meter; 比值檢波器 ratio detector; 比值控制...
- 控制器 : controller; regulator; monitor; pilot; keyer; manipulator; control unit; control device; [自動化]...
- 控制 : control; dominate; regulate; govern; manage; check; cybernate; manipulate; encraty; rule; rein; c...
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Output can be obtain, next we use our designed the wavelet soft threshold to select result of the wavelet transform, finally, we give the selected result reversal wavelet transform. it is obvious : the wavelet soft threshold is important to improve the quality of the gray image processing. i give the donoho wavelet soft threshold a modified value method, which has a relation with ratio of signal - noise. i made full use of discrete hop field single feedback neural network, and nonlinear steady of automatic system at last, i obtained a steady limited ring, give the energy function an order differential a optimal
我的思路是:改造現有圖形結構,先建立能反映信噪比大小且含待定參數k的表達式,然後通過離散型h0pfi舊單層反饋神經網路,再結合前邊的混合濾波器構成一個非線性控制系統,寫出對應的網路函數,利用相平面法和李雅普諾大穩定性的判據,得到一個穩定的極限環,從而確定出參數卜的范圍,進而再對原來的小波軟閾值進行修正,用修正後的值作為小波閾值。Starch nanoparticles ( sn ) have been prepared with w / o starch microemulsion as microreader and epichlorohydrin as cross - linking agent. the factors affecting the preparation of sn have been investigated via the characterization of tem. the results show that the size and size distribution of sn are mainly controlled by the interfacial strength of microreactor, and the interfacial strength of microreactor is chiefly influenced by w value ( the molar ratio of water / surfactant ) and concentration of starch
利用所得到的w o型澱粉微乳液作為微型反應器,以環氧氯丙烷為交聯劑制備出澱粉納米粒,並藉助透射電鏡的表徵研究了各制備因素的影響,研究結果表明:澱粉納米粒的粒徑及粒度分佈主要受微型反應器的界面強度控制,而影響界面強度的因素主要是r值(即水與表面活性劑的摩爾比值)及澱粉液濃度。The results of experiments have show that electro - hydraulic proportional control system and its core controller of the auto crane ’ s performance are satisfied. it has the advantage of easily using and low cost, then it is worthy of further developing
核心控制器樣機的試驗情況表明,本文所設計的汽車起重機電液比例控制系統具有簡潔實用、成本低廉的優點,證明了本文研發成果的有效性和實用價值,為產品的產業化開發打下了良好的基礎。Analyze and compare pid and vague, single neuron etc. control strategy, and combine with single neuron self adaptive gain, self adaptive right value and preventive integral saturation etc. control strategy. have improved single neuron control algorithm, may restrain efficiently to disturb, reduce broken arc and short circuit etc. phenomenon, make systematic control effect and robustness get to strengthen, also have certain application reference value for the design of the dc arc furnace
通過對pid 、模糊、單神經元等控制策略的分析比較,將單神經元增益與權值的自適應調節、抗積分飽和等控制策略相結合,改進了單神經元控制器演算法,可以有效抑制擾動,減少斷弧、短路等現象的發生,使系統的控制效果和魯棒性都得到增強,對電弧爐控制系統的設計也具有一定的應用參考價值。Secondly, compared with some other kinds of comparator structure and based on the preamplifier - latch fast - compare theory, a novel topology of cmos preamplifier latch comparator circuit is presented. considering trade - off between kickback noise and power dissipation, reference resistance value is optimized. according to the encode demands of different stage resolution, clock - control encode circuit is designed
其後,在具體的子adc設計中,對比各比較器類型的優缺點,並基於預放大鎖存快速比較理論,提出一種新型高速低功耗預放大鎖存比較器電路拓撲;根據adc系統所允許的參考電壓最大波動限制,在回饋噪聲對輸入參考電平的影響和功耗之間折衷,確定優化的參考電阻串阻值;根據不同級精度的編碼要求,設計出時鐘控制編碼電路。Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running
本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點,提出多變量協調控制方案,解決了系統可控性差,難以實現穩定自動運行的問題;在此基礎上,改變以往以煙氣含氧量控制送風的傳統模式,針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重,煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題,應用智能控制理論中的模糊控制技術,結合自尋最優控制的思想,設計了一種模糊自尋優控制器,應用在電站鍋爐送風控制系統上,並闡述了動靜態兩種實現途徑,通過在線優化風煤配比,實現最佳經濟燃燒,切實保障了鍋爐的經濟運行。It " s function is to receive laser signal and to sent out the electric signal ; the second is the monolithic processor system. this part function is to pick up the electric signal sent by ccd detector and to compute the digital signal to get the data where the laser beamed, then sent the data to pc computer ; the third part is the control interface for people to control whole measurement process
本文介紹的桁架梁撓度實時檢測的電荷耦合( ccd )測量系統由ccd接收系統,單片機測量系統和pc機測量軟體三部分組成。該系統採用線陣ccd為傳感器,以8031為控制核心,在單片機系統和pc機軟體之間建立了可靠的通信,能在比較惡劣的條件下獲取、顯示、存儲、處理和比較桁架的撓度值。Based on the characteristics of fire in high - rise buildings, the papers introduces the work principle of scatter photoelectric style fire explorer, discusses the work courses of automatic alarm, and analyzed that the sense smoke explorer system with prolonged work procedure is much more reliable than that without prolonged work procedure in the fire automatic alarm. whats more the computer program graph for auto - alarm system is also worked out. 4figs. , 5refs
依據高層建築火災性質和特點,介紹了高層建築中用散射光式光電感煙檢測器檢測火災的工作原理,討論了自動控制報警的工作過程.分析比較了設有延時工作過程的感煙探測系統比沒有延時工作過程的系統,火災報警的可靠性大大增強.並編制了自動報警系統計算機程序框圖,本文討論的高層建築中火災的探測與自控研究,對于不同建築結構和不同要求的火災控制報警系統具有參考價值和社會經濟意義.圖5 .參5For the algorithm of reactive power optimization, presented in this paper, in order to found the linear programming model equations, the objective function is minimum total power losses, the controlled variables include the compensating capacity of reactive power, generator bus voltages and transformer tap positions, the state variables include reactive power of the generators, and the voltage amplitudes in the ends of transformers
本文研究的電力系統無功優化演算法是以整個網路的損耗最小為目標函數,以無功補償設備出力、發電機端電壓和可調變壓器變比為控制變量,以發電機的無功出力和變壓器端電壓幅值為狀態變量建立了線性規劃模型方程。This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved
本文提出了一種採用修補spwm正弦表值的方法,用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變;逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器,提高了系統的動態響應指標;系統設計了完善的保護措施,並具有市電電網的故障診斷功能。This paper considers two controllers with different feedback signals ? the ac current phase angle of converter transformer and the ac voltage magnitude of inverter bus, respectively. pscad / emtdc simulation software is used for the controller testing. the test models used for the analysis are the cigre hvdc benchmark systems with different scr at the inverter side
為了驗證該控制方式的有效性,本文採用了電磁暫態模擬軟體pscad emtdc ,在國際大電網會議cigre提出的hvdc標準模型上,用逆變側短路比不同的系統對調制控制器的性能進行了模擬測試,調試出了調制控制器的各參數值。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。Through simulation and calculating the four models, the influence on proportion coefficient, integral time constant, derivative time constant and partial feedback coefficient for system performance is analyzed. the ideal reference value of every parameters and step respond curves are given. the simulation result may be used as reference for making analogue controller or digital controller
通過對這四種模型的模擬研究,分析了各模型中比例系數、積分時間常數,微分時間常數及局部反饋系數對系統性能的影響,並給出了各參數較為理想的參考值及階躍響應曲線,模擬結果對製作模擬控制器及數字控制器有一定的借鑒作用。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。Parameters of fuzzy neural networks are rectified more quickly by maintaining the consistency of fifth layer weights in the fuzzy neural networks to proportional parameters in the nine - point five - state controller. at the same time, the weights of fifth layer are endowed real meaning. the simulation results prove that the controller has better effect and is easily rectified
只需要把模糊神經網路第五層的權值與九點五態控制器的比例參數值保持一致,就能取得比較好的控制效果,因此,可以更加快捷地整定模糊神經網路的參數,同時賦予了第五層權值以實際的意義。If the process controller was in automatic scroll mode at the time of the changeover to " manual ", it is preferable to select the " run / stop " functin in order to stop the time base and set the reference value, since in the event of an automatic restart it is easier to advance the program than reverse it if it has gone too far during the manual procedure
如轉換為「手動」模式時,工序控制器處于自動滾動狀態,則最好選擇「運行/停止」功能來停止時基並設置參考值,因為如果出現自動重啟,而在手動模式中已進行了很多步驟地話,則前進此程序要比後退容易得多。( 5 ) using the method apd, it select a new drive signal s = x1 - cx3 to synchronize the response system, the theory analysis and numerical simulation results show that it can synchronize two hyperchaotic systems completely with the drive signal s = x1 - cx3, comparing with the method of selecting signal in literature [ 114 ], with the drive signal s = x1 - cx3, it can shortens the transient period of synchronization ( 6 ) using the outside standard signal to control 4d oscillator hyperchaotic system, basing on the stability theory, constructing the following lyapunov function it gets the controller as following : the theory analysis and numerical simulation result show : using the controller above, it can control the system to reach any desired stable point and period orbit
( 5 )採用apd方法,選取新的驅動信號s x1一ex來同步響應系統,理論分析和數值結果表明:採用本文的驅動信號可以使兩個超混飩系統同步,和文獻1141相比,採用本文的驅動信號可使同步暫態過程更短。歷)利用外部標準參考信號個和o來控制振子超混燉系統,基於穩定性理論,通過構造l ) apunov函數, kgb ( xz4l4 ) 『 n ) l小t4 xzcko k0卜ro 』十個n xsn n一大0 『得到控制器表達式如下: u ; zr zr 。 ( 1 b ) 』 x 。This paper focuses on the research of fuzzy control, especially rule self - adjusting fuzzy control method. by theoretic analysis and simulations, the influences of parameters and system performance characteristic of some kinds of rule on - line self - regulating fuzzy control methods are discussed, and a novel real - time self - adjusting fuzzy control method ( vsrsafc ) is proposed from the diagrammatic point of view. in vsrsafc, the slope of the rectifying curve of rule scaling factor a is altered by the fine - tuning and coarse tuning combined mechanism to adjust the fuzzy control rules according to error e and error change ec, which more coincides with characteristic of system response than the conventional self - adjusting method that adjusts rule scaling factor only according to the error e, and has better static and dynamic performances than the latter
其中變斜率規則自調整模糊控制的效果較為明顯,它是基於插值的非線性規則自調整模糊控制的引申以及常規全論域規則自調整模糊控制的改進,該方法採用粗、細調結合機制,通過改變規則調整因子的修正曲線斜率,使系統同時根據誤差e以及誤差變化ec在線調整模糊控制規則,比傳統的僅基於系統誤差e的自調整方法更符合系統響應特性,可獲得更好的動靜態控制性能,特別是對于系統參數發生改變、控制參數選取不當等不良狀況,控制器仍能較快自調整,具有較強的在線自適應能力。At last in this paper, a fuzzy tuning method is put forward to make sure the proportion gene ( ke, kec and ku ) of fuzzy logic controller. lots of experiments indicate that this fuzzy tuning method is very efficiency
本文最後針對模糊控制方法中量化因子與比例因子的整定問題,研究了基於各種性能指標的模糊整定方法,經過計算與實驗,發現該方法切實可行,通過該方法整定好的各因子值使得模糊控制器的控制效果更佳。In order to let students deeply realize servo construction of servo system and debugging of close loop and half close ioop system, design and make pulse comparing position loop circuit and numerical value comparing position loop circuit
為了讓同學們更深了解伺服系統的構成以及閉環和半閉環系統的調試,設計和製作了脈沖比較型和數值比較型兩種位置控制器。分享友人