dc drives 中文意思是什麼
dc drives
解釋
直流驅動-
Coact company is a manufacturer specially produced precision stepping motor, brushiess dc motor and drives
本公司是一家專業生產精密步進馬達，無刷直流馬達及驅動器的製造商 -
Torque ripple reduction in brushless dc motor drives using a buck converter
變換器的無刷直流電機轉矩脈動抑制方法 -
Design engineers now selecting pmbldc motors over conventional dc or induction motor drives for the following reasons : 1 ) the absence of brushes results in an essentially maintenance free operation and eliminates the undesirable effects of commutation such as sparks, brush - loss, radio - frequency interference, etc. 2 ) the low inertia of the rotor enhances the quality of the mechanical response of the motor, shortening the acceleration and deceleration time. 3 ) utilizing rare - earth permanent magnet materials with high coercive force results in substantially higher efficiency than their counterpart with brushes of the same size. 4 ) because of the absence of commutation segments, the stator construction is simple
現在的工程師們更為青睞永磁無刷直流電動機是因為以下幾點原因： （ 1 ）去除了電刷的永磁無刷直流電動機徹底地免除了維護而且消除了我們不希望的由於換向帶來的火花、電刷損耗以及無線電干擾等等； （ 2 ）低轉動慣量的轉子提高了電機機械響應的質量，從而縮短了電機加速和減速的時間； （ 3 ）高矯頑力稀土永磁材料的使用使得同樣尺寸的永磁無刷直流電動機比傳統的直流電動機效率高； （ 4 ）由於沒有機械換向部分定子的結構簡單了。 -
Although many cnc systems still use hydraulic or pulse motors, the dc drives have gained dominance on a much larger scale
雖然許多電腦數字控制系統動仍然使用水壓或脈沖馬達，但是直流電器已在許多大型設備上佔有優勢。 -
As the key role of vehicle revolution, the electrical motorcycle drive system has many shortcomings such as low energy efficiency, short running distance within once charge, etc. i n this paper, based on studying the traditional bi - directional energy converters of dc drives, a novel energy saved electrical motorcycle ac drive is presented
環境保護和能源問題是二十一世紀「綠色革命」的兩大主題，電動車作為汽車「綠色革命」的主角，存在著能量使用率低、一次充電行駛里程短等問題。本文通過研究直流調速系統雙向功率變換電路，提出一種zczvsboost雙向dc dc變換器與vvvf變頻調速器相結合，驅動鼠籠型異步電機的節能型電動車交流驅動系統。 -
This motor drives three air conditioning compressors and one alternator ( 24volts dc ) using normal vee - belts
這馬達以皮帶動三組空調壓縮及一個廿四伏特直流發電機。 -
In this unit, a dc motor drives a two - stage planetary reducer, which drives in the splitter box three output shafts to run at the same speed and in the same direction, and these output shafts are joined to cross gimbal couplings to drive the three lower rolls of the straightener
本機由一臺直流電機驅動二級星行齒輪減速器，經分配箱輸出同一轉速相同旋轉方向的三根輸出軸，與十字萬向聯軸節聯接，帶動矯直機三個下輥工作。 -
The rotor velocity and position can be taken as two states variable of the system by using the ekf on the basis of the theory of the bldcm. based on the measured stator currents and stator voltages, we can estimate the rotor velocity and position. it is very useful for us to study the application of the velocity and position sensorless operation of brushless dc motor drives
在直流無刷電機的原理基礎上，利用擴展卡爾曼濾波器將轉子轉速和位置看成系統的兩個狀態變量，根據定子側可測的電流、電壓值，逐步估計出轉子轉速和位置，為無速度和位置傳感器無刷直流電機控制系統打下基礎。 -
Computation of brush short circuit coefficients of dc machines for extremely low speed drives
極低速驅動用直流電機電刷短路系數計算 -
1973 head of controlled three - phase and dc drives simatic department, bremen regional office
1973年任不來梅地區分部三相交流電及直流電驅動simatic部主管 -
The dc drives provide the answer to the most essential needs of acceleration, deceleration, stopping, and constant velocity, with inherent shaft stiffness for successful operation of the cnc system
直流電驅動應用自身固有的軸硬度成功地滿足了操作cnc時，對最關鍵的加速度、減速、停止及常速度的需要。 -
Research of recurrent fuzzy neural network control in brushless dc motor drives
基於遞歸神經網路的無刷直流電動機控制研究
分享友人