speed under control 中文意思是什麼
speed under control
解釋
控制速度-
Then following reality constituent of engine and connecting component interface, a nonlinear signal cylinder engine model has been created, though fire interval and fire order, a control - oriented four cylinders engine is build. following dynamometer is seen as load, performance of engine is simulated and researched under the condition of constant torque and speed, validation of the math and simulation model have been confirmed by comparison result between simulation with test result of engine performance simulation software dyno
按照發動機的實際組成，根據各部件的介面類型連接模型庫中的部件，建立了單缸發動機非線性模型，在此基礎上，依據發動機實際發火間隔和順序，建立了面向控制的四缸汽油機模型，並以測功器為負載，通過恆轉矩和恆轉速方式進行了發動機性能模擬和研究，模擬結果和發動機動力性能模擬軟體dyno測試結果的對比驗證了數學模型和模擬模型的正確性。 -
The subject has mainly finished designing and debugging software and hardware of a / d decode module, fpga video processing module, video data frame deposit module, base clock produce module, d / a encode module, i2c bus control module, etc. a / d decode module gathers analog tv signals and realize video decode ; fpga video processing module deals with the data after decoding and produces systematic logic control signal ; video data frame deposit module offers the buffering area to a large n umber of high - speed video data ; base clock produce module through input basic video signal offers system accurate relevant synchronous signal ; under control of video processing module d / a decode module convert digital video data into compound tv signal which can be shown in tv directly ; i2c bus control module is used to initialize the chip of system by simulating i * c bus timing
本課題主要完成了a d解碼模塊、 fpga視頻處理模塊、視頻數據幀存模塊、基準時鐘產生模塊、 d a編碼模塊、 i ~ 2c總線控制模塊等部分軟、硬體設計及調試。其中a d解碼模塊採集模擬電視信號實現視頻解碼； fpga視頻處理模塊對解碼后的數據進行去噪處理的同時還負責系統的邏輯控制；視頻數據幀存模塊為大量高速的視頻數據提供緩沖區；基準時鐘產生模塊通過輸入基準視頻信號為系統提供精確的相關同步信號； d a編碼模塊在視頻處理模塊的控制下把數字視頻數據轉換成復合電視信號供顯示用： i ~ 2c總線控制模塊模擬i ~ 2c總線時序實現對系統中編、解碼晶元的初始化。 -
In the fourth chapter, we consider the effect of bus stations on traffic flow. by numerical simulations, we attain the idea results. in the fifth chapter, a multi - speed ca traffic flow model on the one - dimen - sional urban main road on the control of traffic lights is proposed to simulate the traffic under the open boundary conditions
最後，建立一個交通燈控制下城市主幹道單車道多速元胞自動機交通流模型來模擬在開放性邊界條件下現實城市主幹道交通的車流運動，通過延遲來調整交通中紅綠燈對主幹道車流量的控制，並研究了在交通燈延遲控制下綠信比、交通燈個數對主幹道交通流的影響。 -
For the requirements of the train ’ s safe transportation under the condition of high speed and great intensity of traffic, the standards of china train control system ( ctcs ) are instituted by the natural ministry of railroad. the technologies of ctcs are researched and developed according to the standards of europe train control system ( etcs )
為了保證列車在高速、大運行密度的條件下安全運輸，鐵道部制定了中國列車控制系統（ ctcs ）標準，並基於歐洲列車控制系統（ etcs ）展開了對ctcs技術的研製和開發。 -
Abstract : based on thestatic wind force factors of a tower and on the root - mean - square of the buffetingdisplacement responses of the tower top, which are measured by wind tunnel tests inlaminar and turbulent field respectively, the static and buffeting internal forces of thetower bottom control sections under its design wind speed are obtained by linearsuperposition method and fem
文摘:基於均勻流和紊流風場中的橋塔模型風洞試驗所測得的橋塔空氣力靜力系數及塔頂抖振響應的位移均方根，採用線性疊加法及有限元法反演，給出設計風速下塔底控制截面的順風向靜風及抖振內力。 -
The main function of a governor is to monitor the speed deviation of a hydro turbine unit and convert it into the displacement deviation of the servomotor according to a specific characterisic. it is used to control the opening of the guide apparatus and to ensure the unit run steadily at fixed speed under a given load
調速器的主要功用是檢測機組轉速偏差，並將它按一定特性轉換成接力器的行程偏差，藉以調整機組導水結構的開度，使機組在給定的負荷下以給定的轉速穩定運行。 -
Under the control of a current loop, the system can make advantage of the motor ' s ability of over - current with a maximum limit, as a result, the motor can implement constant - current staring under a maximum let - through current. therefore, the motor ' s rotational speed can rise at a maximum acceleration and reach the given speed within the shortest time
在電流環的控制下，系統在起動的時候能夠最大限度的發揮電機的過流能力，使電機以最大允許的起動電流恆流起動，則電機轉速可以以最大的加速度上升，並且以最快的時間達到給定轉速。 -
Vvvf door controller frequency converter makes lift door installation easier and more convenient as its control center is the internationally advanced engineering 16 digital micro computer and it operates with the fully digital spwm modulation techniques, with igbt module as the output power drive and with voltage, current and speed under fully digital closed circuit control ( the door controller ' s operation parameters are inputted by means of the keyboard )
Vvvf控制門機變頻器採用當今國際上先進的工控16位微型計算機為控制核心，採用了全數字spwm調制技術， igbt模塊作輸出功率驅動，電壓、電流、速度全數字閉環控制（門機的運行參數均可通過鍵盤設置輸入） ，從而，使門機的安裝調試更加簡單，方便。 -
Mainly discussed the use of plc in wrapper, constant tensioned winding under variable frequency speed regulation, the use of servo system in accurate location, and also discussed the mathematic model of the auto control system of the wrapper
摘要介紹了plc在分條整經機中的應用，變頻調速下的恆張力控制，伺服系統的精確定位，並且討論了整經機自動控制的數學模型。 -
However, once we take all - sided and impersonal view over the housing finance, we will definitely realize the conflict between the high speed and the low efficiency of it. in this paper, it ' s analyzed that there ' re five factors affecting the efficiency of housing finance, based on the basic situation of china as a developing country and according to some related theories of the western economics. the first one is the dual - track interest rate which presumes that price of housing credit financing is under the control of government to a certain extent, and the rest is open
因此，本文從我國作為一個發展中國家? ?這一基本國情出發，以西方經濟學中有關理論為依據，分析影響我國住房金融效率的因素主要包括：利率雙軌，即一部分住房信貸資金價格受到政府的管制，而另一部分住房信貸資金價格則是開放的；住房金融機構產權不清，特別是政策性住房金融機構產權不清而導致金融創新動力不足，金融工具品種單一，不能滿足居民需求多樣化的要求；住房信貸中由於較高的交易費用，而使內耗偏高、效率降低；住房金融機構不健全，既不存在真正的住房金融機構又缺乏相應的擔保機構；此外，住房金融中融資機制不完備，長期信貸資金來源不足與資產負債的期限結構不匹配也是影響住房金融效率的一個主要因素。 -
The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。 -
Through the loss model of lim, best efficiency control scheme is proposed based on the vector control, by which low efficiency of lim under light load or low speed is improved. the control scheme is proved effective through simulation under a specified speed - location curve
通過建立電機損耗模型，在矢量控制的基礎上設計了最優效率控制策略，解決了輕載或低速運行時的效率低下問題，通過指定速度位置曲線下的模擬分析驗證了控制策略的有效性。 -
Dc - g570 mainly for the carving of artistic works suchas crystal dianmond jade and various medals portraits wood board characters. laser machine for the carving of artistic works. the processing area is 500700mm. the up and down board can move 400mm up ward or downward. the 40mm laser end can move at the highest speed of 1500m s. it is under the control of the dsp industrial system with the differentiation rate 0. 015mm
如：水晶玉石等雕刻，各種獎碑獎牌的雕刻人像雕刻木版書雕刻工藝禮品包裝盒雕刻，加工面積500700mm ，電動升降平面上下400mm可調，激光頭40mm可調，最大移動速度為1500mm s 。 dsp工業級高速控制，分辯率0 . 015mm 。 -
The calculated results indicate that maneuvering efficiency of the bow lateral thruster is related to velocity and thruster ' s rotate speed directly, it is the best at zero velocity, and maneuvering efficiency of the bow lateral thruster increase with increasing thruster ' s rotate speed ; the calculated results also indicate that crabbing motion can be operated for large vessels under the main thruster, the bow lateral thruster and the rudder ' s united control
計算結果表明側推器操縱效能與航速及槳轉速直接有關，零航速最好，且隨槳轉速增高而增強；結果同時也表明了藉助于主推進器、首側推器和舵的聯合操縱可實施純橫移運動。 -
The factory is an advanced unit in jiangsu quality control, a " good credit standing of contract and honor " unit judged in continuous 8 years, one and only factory under authority with city quality control office in the sane area. our company specially manufactures various kinds of washing equipment such as water cleaning, dry cleaning, ironing, stone - scrubbing, sand - scrubbing, dyeing. they are widely used in various fields such as hostel, restaurant, hospital, train, schools and launeries. especially the automatic speed controlled by frequency conversion washing and dehydrating machine gained the gold reward on ' 97 shanghai international washing and ironing machine exhibition, new model wide ribbon no pressing tracks ironing, leading the advanced level in the same area in china
公司所屬廠系江蘇省質量管理先進單位，連續八年被評為市「重合同守信用單位」 ，是泰州市同行業中唯一受市質檢所監制的廠家，專業生產各類水洗、乾洗、整燙、石磨、沙洗、染色、噴砂等系列設備，廣泛用於紡織、印染、絲綢、服裝、化工、賓館、飯店、醫院、列車段、院校等各種行業，其中全自動變頻懸浮洗脫兩用機獲97年上海國際洗整機械設備及用品博覽會金獎，新型變頻調速無壓痕燙平機在國內同行業中具有領先水平。 -
The results of the experiment show this creative ac variable frequency speed - governing experiment system can realize the load relationship of direct electromagnetic torque between the motor group, get the continuous control process easily for the reaction load and potential energy load during four quadrant, achieve the total availability of the regenerate energy at any kind of load, and the system consumed power make up under 30 % of actual load power at any kind of load
該方案研究獲得的實驗結果表明：這種具有創新特色的交流變頻調速實驗系統可實現電動機組之間直接電磁轉矩方式的負載關系，可方便地獲得電動機在反應或位能負載特性下四象限運行的連續控制過程，並實現了任意負載方式下再生能量的全部回饋利用，任意負載下系統消耗功率僅占電動機實際負載功率的30 %以下。 -
The study showed that under contain load and input speed, the output speed of the coupling could be controlled by modulating the strength of the applied dc field, which provides a new control means for continuous speed modulating of a transmission system
實驗表明，在確定負載和輸入速度下，可以通過調節直流電場控制聯軸器的輸出速度。這為傳動系統的無級調速提供了一種新的更簡便的手段。 -
In this thesis, based on a digital signal processor tms320f240, a controller for pmsm is researched an designed. we analyzes the mathematics model of pmsm, researchs vector control of pmsm and space vector pwm, discusses the controller of position, speed and current, designs the mrfas position controller, pid speed controller and pid current controller, sets up pmsm ac servo control system, designs dsp controller, and develop the corresponding sofeware. at last, the designed controller is simulated under matlab / simulink, and the results are gived
分析了水磁同步電機的數學模型，研究了永磁同步電機的矢量控制方法和空間矢量脈寬調制原理，討論了位置環、速度環和電流環的控制方法，設計了模型參考模糊自適應位置控制器、 pi速度器和pi電流控制器，組建了永磁同步電機交流伺服控制系統，設計dsp控制器，並開發了相應的軟體。最後在matlab simulink環境下對系統進行了動態模擬，並給出了模擬結果。 -
By analyzing on the forced vibrations of the automobile suspension system under the single - frequency sinusoidal motivation of the road surface, this paper reveals the possibility of the chaotic movement existing in the system, and in terms of this view point, this kind of chaotic behaviors can he controlled by using the speed feedback control method, and it also provides the academic basis for using the chaos sequence
分析了汽車懸架系統在路面單頻周期激勵下的受迫振動，揭示了該系統振動存在混沌的可能性，並在此基礎上，利用速度反饋控制方法對這類混沌行為進行了控制，為利用混沌序列提供了理論基礎。 -
Discussion and testifying were made to the convergence of the algorithm under the condition of having constrains in objects " outputs. one new algorithm, which can maintain the convergent speed under such constraint conditions, was presented. using iterative learning control in real job of industrial robotic manipulators, we h
本文對對象輸出有限制情況下迭代學習演算法的收斂性做了討論和證明，並且提出了一種在這種情況下，能相對維持收斂速率的迭代學習律的改進策略。
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