two-speed drive 中文意思是什麼
two-speed drive
解釋
兩檔傳動-
According to the actual working condition of the electric motor on ground drive screw pump, two kinds of new motors are proposed, that is the gearshift multi - power single speed motor and speed regulating pole change motor
摘要根據地面驅動螺桿泵電動機的實際工況，提出了分擋多功率單速和變極調速2種新的電動機設計方案。 -
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。 -
The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance
通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。 -
Engine and performance : two stroke air cooling engine, powerful ; key parts imported, reliable and durable ; excellent start - up performance of no less than three times ' drawing, easy and convenient to operate ; chain wheel drive, minimum power loss ; constantly variable speed and disk brake guarantee your safety
動力性能：風冷二沖程發動機，功率強大，多種進口件組裝，性能穩定可靠，壽命長；優異的啟動性能，保證您不超過三次拉動，即可啟動發動機；採用無級變速裝置及性能優良的碟剎系統，使整車運行安全可靠，操縱方便；鏈式傳動，令功率損失減至最小。 -
Two speed planetary final drive
行星齒輪式雙速主減速器 -
According to its drive system, high - speed centrifuge is divided into : dual - motor frequency - converting contrifuge, single - motor frequency - converting contrifuge, dual - motor two speeds centrifuge, frequency - converting intelligent control centrifuge and single motor drive centrifuge
其中高速離心機驅動方式分為雙機變頻、單機變頻、雙機雙速、全變頻智能驅動和單機驅動五種方式。 -
3 transmission, built in the top drive power head, has two speed range ? high and low. it can meet the requirements of both dth hammer drilling and carbide bit drilling
3動力頭設有變速裝置，有高低兩個檔次，以滿足潛孔錘鉆進及硬質合金回轉鉆進方法。 -
This paper study a two - phase inverter - fed induction - motor drive, which can be widely used for low - power, variable speed drive system. the study has completer the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use. it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of singlechip controller, power drive device, inverter - fed device, a low power tow phase induction motor and safeguard circuit
本文研究了一種新型電壓空間矢量控制兩相逆變器?異步電動機的變頻調速系統，該系統可以廣泛應用於小功率、寬調速運行的場合。本項研究完成兩相逆變器的設計，並組成了試驗用的兩相逆變器?異步電動機系統。系統是一個轉速開環的變頻調速系統，由單片機機控制電路、功率驅動電路、逆變器主電路、保護電路組成。 -
This paper ? goal is to improve the performance of the electric vehicle ? drive system based on the existed schemes. limited by time, this paper focused on two research areas : ( 1 ) overmodulation scheme based on svpwm ( 2 ) speed sensorless control method
由於時間有限，本文所進行的研究工作主要集中在兩個方面： （ 1 ） svpwm過調控制的研究（ 2 ）無速度傳感器控制演算法的研究。 -
Tsad two speed accessory drive
雙速附加傳動 -
Then paper introduces a method by which the engine size and the speed reduction ratio from the engine to drive wheels based on the cruising mode ( one of the two basic modes for an electrically peaking hybrid vehicle ' s operation )
而後重點針對電力峰值型並聯混合動力電動汽車動力的兩種操作模式介紹了一種基於恆定高速行駛模式的，用來確定發動機大小以及發動機與驅動輪之間傳動比的方法。 -
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。 -
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。 -
Hydrostatic transmission, double drive, two amplitudes, two gears and infinitely variable speed
全液壓、雙驅動、雙振幅、兩檔無極變速。 -
Hydrostatic transmission, double drive, two amplitudes, 3 speed range, infinitely variable speed, good over - lap - ping
全液壓、雙驅動、雙振幅、三檔無級變速，十字鉸接式車架。 -
In this paper, we design two types of flexible hinge, which are column stagger flexible hinge and flat straight round flexible hinge. the control system of the drive equipment includes the unity of the central console and control module. the console regards vc + + 6. 0 as the tool, it can set pulse number and pulse speed, start and stop the electromotor
微驅動裝置的控制部分由上位機和控制模塊組成，上位機採用vc + + 6 . 0編制控制界面，可以設置電機旋轉所需的脈沖數和脈沖速度，可以實現電機的起停，正反轉及脈沖清零等工作，還可以分別控制不同鏡架的電機及相同鏡架的兩個電機。 -
The system adopts modular design. 8031 single chip computer is the core of this system. it includes two module parts : the oil injection count module and the drive shaft rotation speed module. the two modules also include hardware and soft design
噴油計數模塊設計又分為噴油計數模塊硬體設計和噴油計數模塊軟體設計；主軸轉速模塊設計又分為測速模塊軟、硬體設計和調速模塊軟、硬體設計。 -
This paper study a two - phase inverter - fed induction - motor drive, which can be widely used for low - power. variable speed drive system
本文研究了一種兩相逆變器-異步電動機系統，該系統可廣泛應用於小功率、變速運行的場合。 -
Two speed double reduction final drive
雙級雙速主減速器
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