traction drive 中文意思是什麼
traction drive
解釋
牽引驅動-
Dsc - based ac drive control system in electric traction
的電力牽引交流傳動控制系統 -
Mouting and connecting dimensions ; traction motors for two - axle longitudinal drive with two hollow axle shafts
安裝和連接尺寸.帶雙空心軸的雙軸縱向傳動牽引電機 -
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。 -
The elevator has vvvf inverter that can accurately control traction and drive systems ( door drive system )
精確的控制曳引驅動系統（門驅動系統）的vvvf逆變器。 -
By analying the requirement of traction characteristics of rectifier in ac drive reciprocal power - fed test system, in this paper, the research on high power supply quality rectifer is conducted around topology and mathematical modeling, high power supply quality rectifer ' s control methods are summarized. predicted current control based on space vector pwm in two - phase stationary coordinates is proposed and used in this paper
本文分析了交流傳動互饋試驗系統牽引特性對整流電源的要求，對高供電品質整流電源的拓撲結構和數學模型進行了研究，總結了高品質整流電源的控制方法，闡述了本文採用的兩相靜止坐標系下基於空間矢量脈寬調制的預測電流控制方法。 -
It uses traditional methods to calculate and check the key parameters of crawlers " kinematics, dynamics and hydraulic drive systems and analyze and study the traction characteristics of hydraulic systems. then it also sets up the complete mathematical model of dynamic characteristics for the whole drive system, and carries out the simulation and analysis of dynamic characteristics through simulating model set up by matlab software
採用傳統方法對推土機的運動學、動力學以及液壓驅動系統的關鍵參數進行了分析計算和校核，並結合效率進行了驅動系統牽引特性的分析與研究，在此基礎上建立了驅動系統的動態特性數學模型，利用matlab語言建立模擬模型，完成了驅動系統動態特性模擬分析。 -
More or less difficult to drive without traction control
沒有牽引力控制系統駕駛賽車會變得更簡單還是困難？ -
Q : more or less difficult to drive without traction control
沒有牽引力控制系統駕駛賽車會變得更簡單還是困難？ -
Direct torque control of permanent magnet synchronous traction motor in electric vehicle drive
電動汽車用永磁同步牽引電動機直接轉矩控制 -
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。 -
Simulation research on traction control system for four - wheel drive vehicle using fuzzy control method
四輪驅動汽車牽引力模糊控制方法模擬研究 -
Three - dimensional finite element analysis on the contact unit of tool holder used in nc traction drive
正常人下頜骨的三維有限元模型的建立 -
Abstract : the basic circuit principle of ac drive traction converters is introduced, whose technical characteristics and development process are also described in details combinating the main parameters of traction converters for ac drive locomotives, such as dj electric locomotive, nj1 diesel locomotive and dwa metro engineering machine
文摘:闡述了交流傳動牽引變流器的基本電路原理，結合國產dj型電力機車、 nj1型內燃機車、 dwa型地鐵工程車等交流傳動機車牽引變流器的主要技術參數，對交流傳動牽引變流器的技術特點及其發展過程作了較為詳細的敘述。 -
This machine adopts closed loop control mode and under the control of single - chip microcomputer, it can receive input of keyboard and mechanical sensor and drive electromotor working so as to realize function of traction ; according to the inputted parameters the machine can use persistency or intermission working mode to cure patients and display working status ; it has the functions of quick reposition, safe protection for double traction device and convenient adjustment ; it can be used to treat neck and lumbar diseases
該儀器採用閉環控制方式，在單片機的控制下接收鍵盤輸入和力學傳感器輸入，驅動電機帶動牽引機構實現牽引活動；根據輸入參數能實現持續、間歇等多種牽引治療方案並顯示運行狀態；具有快速復位、雙牽引安全保護和方便的校準功能；可用於對頸椎和腰椎疾病的治療。 -
The locomotive has passed the performance test, which indicates that the ac drive system, with high performance, dramatically improves the maintainability of the traction machines and electric apparatus
性能試驗表明，該車牽引電機、電器的維護工作量大為減少，且牽引性能優良。 -
Presented are the functions, main technical parameters and constituent components of the ac drive test system for locomotive, composed of locomotive power supply, converter, 3 - axial bogie rolling load test bench, asynchronous traction motor test bench and microprocessor automatic control system
摘要介紹了集機車供電、變流器、三軸轉向架滾動負載試驗臺、異步牽引電動機試驗臺、微機自動控制於一體的機車交流傳動試驗系統的功能、主要技術參數以及主要設備。
分享友人