direct drive system 中文意思是什麼
direct drive system
解釋
直接傳動系統-
Another recent innovation is their precision direct - drive technology for their 12 - inch prober, the eg6000, which allows this system to achieve the highest accuracy available today
這比那些早期系統更容易使用，如今的生產環境中只需非常少量的操作或者支持即可。 -
Whirlabout flat drive system adopts direct current electromotor and servo system is closed loop. the system carries out the response of adjusting shipboard 90 ? within 1. 8 seconds and orientates accurate position simultaneously ( the error is within ? ? )
同時為實現1 . 8秒調舷90的響應，並調舷定位在精確方位上（誤差在20之內） ，伺服系統以線性? ?非線性系統來實現。 -
A direct drive system, used on track bikes, in which the chain ring and rear cog are linked, so that the pedals turn constantly while the bicycle is moving, and coasting isn ' t possible
固定飛輪，或稱「死飛」 ，飛輪與后輪軸皮連為一體，腳踏轉動與后輪轉動完全同步，無法實現一般棘輪飛輪自行車的腳踏不動時的滑動。 -
Through consulting lots of relevant references, present research of direct drive volume control hydraulic servo system is summarized in this paper, the principle and character of this system are expatiated, the principle of vector control is introduced. at the same time, the mathematical model of ac asynchronous motor is set up based on the vector control theory. the mathematical models of both the pump controlled motor and pump controlled cylinder are set up and simulated in this paper
在查閱大量國內外相關文獻的基礎上，本文綜述了國內外對該系統研究概況，闡述了該類系統原理和特點;闡述了矢量控制的基本原理，並基於這一原理建立交流異步電動機的數學模型;分別建立了泵控馬達系統和泵控缸系統的數學模型，並給出了模擬分析;設計了用於泵控馬達系統的集成閥塊，加工了密閉壓力油罐;針對現有直驅式電液伺服裝置所存在的問題，本文主要針對系統工作過程中所產生的噪音與爬行問題進行了一定的研究。 -
Direct drive volume control hydraulic servo system, which is composed of hydraulic pump driven by ac servo motor and executive elements, takes advantages of both ac servo motor ' s flexibility of controlling and hydraulic great output force
直驅式電液伺服裝置，它是由交流伺服電機驅動的液壓泵與執行元件組成，它具有伺服電機控制的靈活性和液壓系統出力大的雙重優點，即用電動機變速直接驅動液壓泵，實現對系統的控制。 -
This machine is used for straight - line bevel cutting and bevel grinding and polishing for flat glass, in certain condition, it can be also used in bevel cuttig, bevel grinding and polishing for soft stone panel. the contrilling system adopts plc, it can accomplish automatic grinding cutting after entering processing parameter, convery speed adopts speed adjustment of fre quency conversion, direct drive of wheel head motor, all motions for joining in parameter adjustment completely adopt straight - rolling guide - track with front beam and wheel head lifting lntegrally. the transmission of input and output adopts synchronization tooth belt and photo - electricity switch positioning, and position limitation of two pass is much more reliable
Sxm371pa型玻璃直線斜邊磨邊機是用於玻璃直線斜邊斜切，斜磨及光拋的專用設備，在一定條件下也可以用於軟石板材的斜切斜磨及拋光。控制系統採用plc控制。輸入加工參數后可自動完成磨削傳送速度採用變頻調速，磨頭電機直接傳動，所有加工參數調整運動副全部採用直線滾動導軌，前梁與磨頭整體升降，輸入輸出傳送採用同步形帶，光電開光定位，雙行程限位更安全可靠。 -
Stepping drive of synchronous motors, upgrading the design idea of stepping motors from combined electromagnet theory to rotary magnetic field theory, will make the capability and efficiency of the increment control system improved to a new level, which is the research purpose of ac step motion drive this paper begins with the direct torque control method for pmsm to expatiate ac step motion control theory distinctly
用同步電動機實現步進傳動；將步進電動機的設計思想從組合電磁鐵理論提高為旋轉磁場，使增量運動系統的容量和效率發展到一個新的水平，這就是交流步進傳動的研究目的。為了比較清楚地闡述交流步進理論，本文首先從永磁同步電動機的直接轉矩控制演算法入手來分析。 -
In the heart of zhengzhou s commercial district, the yuda palace hotel is a 5 minute drive from the railway station and 40 minutes from the airport. the city s commercial center is just 3kms away and the hotel is also close to the central china international center. 24 - hour room service, laundry and dry cleaning service, internet e - mail access upon guest request, in - room safe, mini - bar, multi - system color tv with satellite programs, voice mail message system, direct - dial telephone with bathroom extension, electronic bedside control panel, individually controlled air - conditioning, deluxe grooming amenities, coffee and tea making facility, bathrobe, hair dryer, weighing scale, computer and fax port, key - card system, iron and ironing board, non - smoking rooms are available, business center, restaurant
鄭州裕達國貿酒店樂彼思特西餐廳8樓作為本地最富盛名的餐飲場所，提供正宗西餐及亞洲菜肴文奇中餐廳7樓是本市最大的餐廳，包括20個風格各異的包間，可同時容納500人就餐紅辣坊俱樂部6樓配有書廊雪茄房迪斯高舞池及ktv包間，是本地最高檔的夜總會水晶廳14樓設備完善，裝飾華貴，被視為舉辦高檔會議及宴會的最佳場所江戶川日餐廳8樓是本地唯一一家正宗日本料理餐廳，由來自東京的資深大廚為賓客奉南玲瓏精緻的傳統及現代日式菜肴 -
Through establishing three mathematics models including the movement equation of the mechanical and electrical transmission system, the control of the load and the sliding in stable status, direct - current - brake of ac motor, this paper ascertained the range of the frequency value of drive motor and the efficiency of transmission system, calculated the efficiency of load motor in stable status and the moment of load motor in braking. this paper completed the design of the mechanical part of inertia brake test platform and provides a tool for the measurement of the inertia brake parameters
本文還通過建立慣性制動器試驗臺的包括機電傳動系統的運動方程、穩態運行時負載與轉差率控制、交流電動機直流制動在內的三個數學模型，確定驅動電機的頻率取值范圍和傳動系統的傳動效率，驗算慣性制動器穩態運行時負載電機軸功率和慣性制動器制動時負載電機軸力矩，完成慣性制動器試驗臺設計中的機械部分，為慣性制動器各參數的測量提供工具。 -
Considering the practicality in specific design, the two different drive system has been designed in the electrical control system, this is, the hoist and gantry uses a set of the ac ( alternating current ) frequency conversion timing drive system, the trolley and boom uses a set of the dc ( direct current ) adjusting voltage and timing system
在具體設計時考慮到實用性，設計的電氣控制系統中採用了兩類不同的驅動系統，即起升與大車共用一套交流變頻調速驅動系統，小車與臂架俯仰共用一套直流調壓調速驅動系統。 -
Considering the practicality in specific design, two different drive systems are designed in the electrical control system, that is, the hoist and gantry share a set of alternating current frequency conversion timing driving system, and the trolley and boom share a set of direct current adjusting voltage and timing system
考慮到實用性，設計的電氣控制系統採用兩類不同的驅動系統，即起升與大車共用1套交流變頻調速驅動系統，小車與臂架俯仰共用1套直流調壓調速驅動系統。 -
In this dissertation, a novel drive system used in electromotion chair, rare earth permanent magnet brushless direct current machine ( repm bldcm ) drive system is proposed, which is provided background by ministry of nation science and technology " shiwu " programming momentous critical item - rare earth application project item - direct current brushless superior reliability rare earth permanent magnet machines
本論文以國家科技部「十五」重大攻關項目? ?稀土應用工程項目之直流無刷高可靠稀土永磁電機為研究背景，結合課題要求，進行了充分的市場調研，確定了論文研究的主要內容為電動座椅用稀土永磁無刷直流電動機驅動系統。 -
It also discusses the key technologies of robotic wafer handling system, including direct drive, magnetic fluid seals, magnetic coupling, trajectory planning, control technology, calibration and gripping
就直接驅動技術、磁性流體密封技術、磁力傳動技術、矽片機器人軌跡規劃與控制技術、校準技術以及夾持技術，對矽片機器人傳輸系統的關鍵技術進行了探討。 -
The power circuit of the system adopts the voltage frequency conversion structure of ac - dc - ac, and is composed of the commutation circuit, filter circuit and intelligence power module ( pm15rsh120 ). control circuit takes the dsp chip tms320lf2407 as core, including the pwm signal occurrence circuit, detect circuit of stator current and direct current voltage of generatrix, drive circuit of intelligence power module, detect circuit of speed, protect circuit of system etc. all of this builds the full digital vector control system of asynchronous motor
該系統的功率電路採用電壓型的交-直-交變壓變頻結構，由整流電路、濾波電路及智能功率模塊ipm （ pm15rsh120 ）逆變電路構成;控制電路以dsp晶元tms320lf2407為核心，加上pwm信號發生電路、定子電流檢測電路、直流母線電壓檢測電路、智能功率模塊驅動電路、速度檢測電路、系統保護電路等，構成了功能齊全的異步電機全數字化矢量控制系統。 -
First, variable speed constant frequency wind energy convertion theory is described in this paper, then presents a review on the development of wind turbines control and the main types of generator and static converters used to interface variable speed wind turbines to the electric grid. then discuss main circuit constructure and advantage of direct drive wind energy conversion system and introduce pitch - control method for wind power traction and electric power stability. simply aerodynamic characteristic of the turbine is analysised and permanent magnet synchnonous generator math model is established. to convert the variable frequency electricity into utility grid, back to back four - quadrant pwm - vsi is used and three typies of control strategy is presented to capture the maximum wind energy and transmit energy. then simulation is implemented to test the control strategy. in the following chapter a simple ac - dc - ac converter with a dc - dc boosting chopper is proposed to transmit the wind energy into electricity energy and two control strategy is presented
建立了永磁電機和變流器的數學模型，針對雙pwm變頻器的特點提出了三種控制策略對變流器進行控制，通過變流器交-直-交的變換，將發電機發出的變頻變幅值交流電轉化為可用的恆定頻率的交流電，通過pwm調治能使其輸出功率因數為一，並且該控制系統功率因數為可調，能在特殊情況下同電網交換一定的無功功率，並通過對變流器的控制實現了最大風能俘獲的功能。最後採用matlab / simulink進行了模擬，取得了良好的模擬效果。在風力發電系統中，採用先進的最大功率俘獲演算法，能有效的從風中獲得最大的能量。 -
Study on new driver amp; amp; controller for direct drive stepping motor servo system
直接驅動步進電動機伺服系統新型驅動控制器的研究 -
Simulation of pressure building - up in direct - drive hydraulic system
直接驅動液壓系統建壓過程模擬研究 -
Matrix converters have received considerable attention in recent years, but the study focus is on matrix converter per se. a combined control strategy for matrix converter fed induction motor drive system is proposed, which implements both space vector modulation of matrix converter and direct field oriented control of induction motor
摘要提出了一種適用於矩陣變換器供電的異步電動機調速系統的組合控制策略，同時實現了矩陣式變換器的空間矢量調制和異步電動機的定子磁場定向直接轉矩控制。 -
This paper introduces the direct torque control theory in detail and uses simulink and power system blockset in matlab building the direct torque control simulation model about asynchronous ac drive. it also introduces the development about direct torque control theory and practice about many kinds of control methods in direct torque control theory
本篇論文詳細介紹了異步電動機直接轉矩控制技術的原理，利用matlab語言中的simulink模塊和電力系統模塊庫（ powersystemblockset ）建立了異步電動機直接轉矩控制系統的模擬模型。 -
Because of its outstanding characteristics of high speed, high acceleration, high position accuracy and so on, the direct drive feed system driven by linear motor is hopeful to be a basic type of feed drive system of high speed machine tool in 2 p1 century
直線電機直接驅動進給系統具有速度、加（減）速度高、定位精度高等一系列突出的優點，有望成為21世紀高速加工機床的基本驅動方式。
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