dc-drive 中文意思是什麼
dc-drive
解釋
直流傳動-
Recently, in the field of microfluidics system the drive mode of flow is a key problem, dc electroosmoticflow micropump bases on the principle of electroosmosis, which control the flow in the microchannel with electric field. recent years, it is more and more attracting people to realize it
當前在微流控系統中液體的驅動方式是一個關鍵問題，直流電滲流微泵是基於電滲原理，利用電場控制通道中的液體流動，實現無運動部件的液體流動系統，近年越來越受到人們的重視。 -
After analysing several kinds of light - weighting structures through ansys, hexagonal speculum structure is confirmed. in the aspect of the controling of speculum, the paper adopts the brushless dc motor which is partial assembled to drive the point speculum and the inductosyn as angle measuring component is selected, the ad2s80a the system is used to get directly angle and angular velocity. double closed - loop speed and position control is designed, as the pid control is the well - developed algorithm, which can achieve stable rotation and precise position control
在指向反射鏡的擺動控制方面，採用低速性能好的分裝式直流力矩電機作為指向反射鏡的驅動電機，並採用感應同步器作為角度測量元件，運用軸角轉換器ad2s80a進行角度和速度的輸出，採用技術成熟的pid控制方案，進行速度和位置雙閉環控制，以實現指向反射鏡轉動速度的平穩性和位置的精確性。 -
Voltage output ssr drive dc 12v, load resistance above 800
直流電平信號輸出4v -
The core products include telecom power systems, board mounted power supplies, custom power supplies, ups, precision air conditionings, outdoor shelter solutions, automatic transfer systems, network power protection products, vrla batteries, lv & precision distribution cabinets, centralized power and environment monitoring systems, dc power systems and ac motor drive inverters used in electric utility power systems
艾默生網路能源產品涉及通信電源、印刷板板裝電源、客戶定製電源、 ups 、機房專用精密空調、戶外一體化通信機櫃、自動切換開關、動力網路保護產品、蓄電池、低壓配電和精密配電櫃、動力設備及環境監控系統、電力操作電源、交流變頻調速器等領域。 -
The thesis roots in the item supported by " fifteen " aviation funds, - new type aeronautic linear dc motor ( ldcm ), study its classes characteristics and work principle, mainly researches the drive and control technique of aeronautic linear dc step motor ( ldcsm ) using in emergency discharging oil valve on airplane
本文源於「十五」航空支撐基金項目-新型航空用直線直流電動機。論文研究了直線直流電動機的分類、特點及其工作原理，重點針對飛機應急放油閥用航空直線直流步進電動機驅動控制技術進行了研究。 -
Moreover, the aeronautic linear dc motor control system not only can instead the drive motor of emergency discharging - oil valve, but also can be used in some low power electromotion machine making linear locomotion. the motor owns extensive application foreground preferably
該直線直流步進電動機驅動控制系統的研製，可替代現有飛機應急放油閥有刷驅動電機，也可用於小功率直線運動機構中，具有較好的應用前景。 -
Digital signal processor ( dsp ) combined with repm bldcm, which build up a dc adjustable speed system, achieve to control multiple motor speed, positive and negative rotate, protect and fault exemine by a true single chip. design and present a electromagnetism scheme of repm bldcm used in electromotion chair drive system. select electronical components and chips in the drive board by contrast with variant drive mode. design the drive board principle picture, make a drive board pcb and debug it. design a principle picture with dsp core. workout the motor control code introduced popular programme modle. test the programme reliability and control performance by linking tms320lf2407 evm, pc, drive borad and the bldcm. the bldcm swatch is prepare experiment
本論文闡述了方波驅動稀土永磁無刷直流電動機的原理及數學模型；設計並給出了一種電動座椅用稀土永磁無刷直流電動機的電磁設計方案；對電機採用何種驅動方式進行了對比分析；對驅動電路進行了元器件選型、原理圖設計、制板及調試；有針對性的闡述了dsp在本系統應用中所涉及到的功能模塊；設計了以dsp為核心的控制電路原理圖；以模塊化的軟體編程思想編制了電機控制軟體；通過tms320lf2407目標板、上位機、驅動板及電機的聯調，證明了系統可行。 -
Medium plate plant of chongqing iron & steel has reconstructed technically the original two stand rolling mills ( roughing mill and finishing mill ) and changed dc drive system into ac frequency converter drive system
重慶鋼鐵集團公司中板廠對兩臺主軋機（粗軋機和精軋機）驅動系統進行了技術改造，將原來的直流驅動系統全部改造成變頻調速驅動系統。 -
It can directly control and drive the stepmotor and dc servomotor, and it can control the ac servomotor by controlling the ac transducer, and it also has the function of detecting the feedback position signal of photoelectric coder and induction phase shifter
它能直接控制和驅動步進電機和直流伺服電機，並可通過控制交流變頻器對交流伺服電機進行控制，而且具有光電編碼器和感應移相器位置反饋信號檢測功能。 -
At the aspect of hardware design, it adopts pulse distributor and the technology of single polar voltage drive to accomplish the function of controlling and driving stepmotor ; it adopts the technology of pulse width modulation and cmos h - bridge drive to accomplish the function of controlling and driving dc servomotor ; it adopts d / a convertor to accomplish the function of controlling ac transducer ; it adopts the technology of digital phase detection to accomplish the function of detecting the feedback position signal of induction phase shifter ; it adopts dsp ’ s capture cell to accomplish the function of detecting the feedback position signal of photoelectric coder
硬體方面，採用脈沖分配器和單極性電壓驅動技術實現了步進電機的控制和驅動功能;採用脈寬調制技術和cmos互補h橋驅動技術實現了直流伺服電機的控制和驅動功能;採用d / a轉換器實現了交流變頻器的控制功能;採用數字化相位檢測技術實現了感應移相器位置反饋信號的檢測功能;採用dsp的捕獲單元實現了光電編碼器位置反饋信號的檢測功能。 -
Influence of dc electric field on the oil - water relative permeability in water - drive reservoir
直流電場對水驅油藏油水相對滲透率的影響研究 -
This method can be used in dc and ac electric drive without complex arithmetic operation, and be can get engineering operational accuracy to some extent
對于直流及交流拖動系統過渡過程的求解無須煩雜的數學運算，並且具有一定的工程計算準確性。 -
It throughly solved some long time complicated questions such as high service rate in dc motor, large quantities of maintaining contact type drive controller, high energy consumption of dc locomotive
徹底解決了直流電機維修率高、換向火花及接觸組火花大、觸頭式司控器維修量大、直流電機車能耗高等老大難問題。 -
Full - bridge pwm motor drive a3952 is introduced in this paper, and an example is given for single phase dc brushless torque motor control
摘要介紹了一種全橋脈寬調制晶元a3952的特點和功能及其在單相無刷直流力矩電機控制中的應用。 -
New technology on china " s railway traction is experiencing changing periods from internal - combustion traction to electrical traction and from dc drive to ac drive, which make it possible for the railway enterprises to face pportunities and challenges. it " s up to these enterprises to take the initiative in making development while producing electric driver of locomotives
我國鐵路牽引技術正處于由內燃牽引向電力牽引、由直流傳動向交流傳動轉換的時期；使配套生產機車電傳動裝置的鐵路電機企業的新產品開發面臨著機遇和挑戰。 -
Dual neural network based model reference adaptive dc drive control with ability of online parameters ' tracking
參數在線跟蹤的直流傳動雙神經網路模型參考自適應控制 -
So the students understand not only the dc drive specialty and control way, but also the ac frequency conversion timing specialty and control way
這樣既能讓學生認識直流驅動器的驅動特性及控制方法，也能讓學生認識交流變頻驅動器特性和控制方法。 -
When the motorcycle is braking or slowing down, the kinetic and / or potential energy is fed back to the battery, so the running distance can be extended and the energy efficiency is improved. an asynchronous motor is employed in this new system which can overcome the traditional dc drive system bugs and to reduce the cost and maintenance. in addition, the switches of dc / dc converter switch under zero current and zero voltage conditions, which can also reduce the switch losses, electro magnetic interference ( emi ) and prolong its life
該系統在功能上實現了車輛剎車減速或下坡制動時能量的回饋，達到節能、提高能量使用效率和增加車輛行駛距離的目的；採用交流異步電機，克服了傳統直流驅動系統的諸多缺陷，降低了成本，減少了維護；採用zczvs技術，降低了電磁干擾和損耗，提高了效率；另外，在逆變主電路中採用ipm模塊，簡化了系統結構，節約了空間，提高了整個系統的可靠性和經濟性。 -
The design of 270 voltages high - pressure dc drive is settled utilizing bridge inversion circuit in this thesis. the miniaturized and low consumed design of hardware circuit and the design of dual - redundancy structure of system are also realized adopting tms320lf2407a dsp chip as main control cell
論文應用全橋式逆變電路解決了系統270v高壓直流驅動設計，採用tms320lf2407adsp晶元為主控單元，實現了系統硬體電路小型化、低功耗設計及系統雙余度結構設計。 -
Eliminating fault in the fully digital controlled dc drive hoist system based on simadyn - d
直流提升機典型故障分析及處理
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