電機效率 的英文怎麼說

中文拼音 [diànjīxiàolǜ]
電機效率 英文
electric efficiency
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 機 : machineengine
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 電機 : （任何產生和應用電能的機器 特指發電機、電動機） any power generating or power driven machine esp ...
  • 效率 : productiveness; efficiency; productivity; workpiece ratio
  1. Energy efficiency fund in jointly efforts of unido, alton fund and netherlands government 5. distributing cooling, heating and power combined supply system

    提高常規發電廠效率技術：研究超聲波乳化燃油節油技術以及燃煤發電廠汽輪機余熱蒸汽中熱能回收技術等。
  2. 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。
  3. The common method of enhancing the efficiency is given, such as decreasing the iron loss, copper loss and machine loss

    從降低電機的鐵耗、銅耗和機械損耗著手，給出了提高電機效率的一般方法。
  4. Because of the worsening of energy resource and the requirement of motor manufacturers to enlarge their profit, to increase motor ' s efficiency and reduce the cost of effective material are more and more considered in recent years

    由於能源危機的加劇和電動機製造企業提高自身經濟效益的需要，近年來，提高電動機效率、節約其生產成本越來越重要。同時，進一步提高電動機的計算機輔助設計水平也一直廣為關注。
  5. In this paper, a calculate theory and method is presented, a under - water permanent magnet dc motor is taken for instance, the descent of its efficiency from 20 to 80 is calculated

    介紹了一種溫升對電機效率影響的計算思路與方法，並以一臺水下使用的永磁直流電機為例，計算在20 ~ 80范圍內效率的下降情況。
  6. Diesel - hydraulic locomotives are slightly more efficient than diesel - electrics, but were found in many countries to be mechanically more complicated and more likely to break down

    這個是你錯了，對于內燃機車來說，液力傳動是比電氣傳動效率高的，因為內燃機所謂的電氣傳動不僅僅有電動機，還有發電機，都有效率損失。單純講電機和液力的話，無疑電機效率更高。
  7. Based on many references form civil and abroad, the author mainly studies the measurment theory and method for flux, raising height, axial power and rotational velocity. avoiding many complicated and intermediate courses for power wastage analysis, introduces the electric measurement and using efficiency curve of motor in measureing axial power, and satisfies the automatization of the device. the paper also provides a new method, inductive winding, in measuring rotational velocity of electromotor, supplys limitations of other method in measuring rotational velocity of electromotor in water, and meet practical needs in developing diving electric pump for corporation

    作者在參閱大量國內外有關文獻，著重探討了水泵流量、揚程、軸功率、轉速的測試原理和測試方法，提出了採用電測法並結合電機效率特性曲線測量水泵軸功率，從而避免了損耗分析法中大量復雜的中間過程，滿足了試驗裝置的自動化測量要求；採用漏磁感應線圈法測量電機轉速，彌補了其它轉速測量方法對水下電機測試的局限性，適應了萊恩公司開發潛水電泵的實際需要。
  8. Phascon technology introduced in this paper is to improve the outer operation parameters of ac motor, by on line detecting the motor phase angle between current and voltage to adjust the input supply voltage to the motor, to realize the flexible power management mode for ac motor, so as to increase the operation efficiency and reach energy - saving purpose

    本文闡述的相控技術是從改善電機外部運行參數入手，通過實時檢測電動機運行相位角來調整電機的輸入電壓和電流大小，實現柔性化能量管理模式，提高電機效率達到節電的目的。
  9. Hollow output transformer, efficiency and reliability of the entire machine

    無空心輸出變壓器，整機效率高，可靠，比電子管式高頻高25 %
  10. Phases straight lines model and not straight lines model based on bp are used to correct the physical parameters and eliminate deflection. the least - square is used to calculate the efficiency of generators

    在物理量校準中利用分段直線回歸和基於神經網路的非線性回歸，對模擬量進行了非線性在線校正來消除誤差；在發電機效率計算中利用最小二乘法實現了發電機效率回歸。
  11. The simulation results show that the power factor and efficiency of lim are much lower than that of rotary induction motor due to end effect and big air gap of lim. end effect force has a great influence on the thrust of lim. the performance of lim can be improved with the proper secondary structure, small air gap, big goodness factor or heavy load

    結果表明:受邊端效應及大氣隙影響，直線感應電機功率因數及效率較低;運行狀態下的邊端效應力對電機推力有較大影響;設計電機時選用合適的次級材料、減小氣隙、增大品質因數、增加負載都可提升電機的輸出性能，通過設計有效的控制演算法可使電機在額定滑差下具有較高的運行效率。
  12. Development on ispg can not only fulfill the potential of power supply equipments and reduce wastages of electric power to the aim of saving energy and enhancing economic benefits of enterprises, but also benefit the whole society. it also helps to save resources that are not recyclable, such as coal. moreover, our country can reduce investment to build power plants, and so on

    研製智能型靜止進相器不僅可以發揮現有供電設備的供電潛力，降低電力損耗，從而達到節能目的，提高企業的經濟效益，而且社會效益也十分顯著：電機功率因數的提高，降低電力損耗，還有利於節省煤等不可再生資源，減少國家投資新建發電廠等。
  13. This work studied the preparation process of aluminum coating and the factor of the properties of the aluminum coating such as processing condition, pre - treatment, electroplating system, current density, and current efficiency and electroplating time etc. it is shown that alcl3 + lialh4 organic solution system can be fabricated aluminum coating and processing parameter of having high reflectivity aluminum coating is obtained

    對鋁膜的制備工藝及影響鋁膜性能的因素如工藝條件、預處理過程、電鍍液體系、電流密度、電流效率及電鍍時間等進行了研究，確定了通過alcl _ 3 + lialh _ 4有機溶液體系可用來鍍制鋁膜及獲得高反射率膜的工藝參數。
  14. Directing against state of affairs at present, such as margin of type - selection parameters being selected comparatively large during design stage of air fans for boilers in thermal power plants, the opening degree of air fans in operation being often smaller ( for adjustment of inlet regulator ) or operation at lower revolution speed ( for speed - regulating operation mode ), and efficiency of air fans being lower etc., factors and corresponding measures having to pay attention in margin selection of air fan ' s parameters have been put forward through analysing practical example of retrofitting forced draft fans in one power plant, playing certain positive role for energy - saving and benefit - increasing in power plants

    摘要針對目前火力發電廠鍋爐風機在設計選型時參數裕量選取較大，運行時風門開度較小（對入口調節器調節）或低轉速運行（調速運行方式） ，風機效率較低的狀況，通過對某電廠送風機改造實例的分析，提出了在風機參數選擇中的裕量選取需要注意的因素及相關對策，對電廠的節能增效有一定的積極作用。
  15. Its operation frequency is 1. 38mhz, with an integration of a power mosfet whose breakdown voltage is up to 50v. the allowable input voltage ranges from 2. 7v to 5. 5v and its output voltage can be programmed between - 2v and - 15v, additionally, the output current is in a 200ma range in typical application. to avoid the poor efficiency of the pwm control scheme at light load, a skip - cycle - mode operation is introduced that allows system ’ s efficient operation at the light load

    該電路工作頻率為1 . 38mhz ，內部集成耐壓50v的功率mosfet ，輸入電壓范圍2 . 7v 5 . 5v ，輸出電壓可在- 2v - 15v間連續可調，典型工作條件下輸出電流在200ma之內;同時，在輕負載下提供跳周期模式，具有很高的待機效率。
  16. Small machine, little, coverage of land, low power consumption, high efficiency and low production cost

    機型小、佔地面積小、耗電低、效率高，節約成本開支。
  17. Key technologies and its mechanism for improving crystalline silicon solar cells in the scale manufacture have been researched in this thesis. after sioa surface passivation and forming gas treatment utilization in the scale manufacture, the surface recombination and series resistance of solar cells have been reduced while their open - circuit voltage, fill factor and efficiency improved

    本論文研究了提高晶體硅太陽電池效率規模化生產工藝技術的主要環節和相關機理，將sio _ 2表面鈍化、 forminggas處理用於規模化生產，降低了太陽電池的表面復合速度和串聯電阻，提高了開路電壓、填充因子和轉換效率。
  18. The main functions of the software include the conditions monitoring of the units and the performance analysis on line, for example, the calculation of the net coal consumption rate of thermal power plants, the net coal consumption rate of power supply, the efficiency of boiler, the efficiency of turbine and other significant index

    該系統使用方便、靈活、功能強大、界面友好，並具有數據有效性檢驗和用戶安全驗證功能，具有豐富的報表、圖形界面來顯示計算分析結果。這套系統可以在線監測和分析機組的運行效率，包括發電煤耗、供電煤耗、鍋爐效率、汽輪機效率和廠用電率。
  19. On one hand, the problem of " big horse pulls little wagon " is resolved and the working efficiency of motor is improved by optimizing way to control the stator ' s voltage ; on the other hand, an energy automatic processing system of " electric motor generates electricity " is developed, in which, the energy of the feedback of motor generating electricity is processed duly and correctly through real - time switch control of the generating electricity absorbing energy cell and is used at wellhead instead of returning power net

    本課題運用新型電力電子技術和計算機控制技術研究開發了一種電機功率因數自調整及節能控制系統，一方面通過對定子電壓的尋優控制，解決了「大馬拉小車」問題，改善了電機的工作效率；另一方面開發了一種電機「倒發電」能量自動處理系統，通過倒發電吸收單元的實時切換控制，將倒發電反饋的能量及時準確地進行處理，使其在井口利用不返回電網。
  20. Speed vvvf contrl. the compact synchronous gearless towing machine looks only a half of the common one, but has the greater driving efficiency and the lower motor power of only about 50 %. in addition, because there

    同步無輪曳引機外型小巧精緻體積僅為普通曳引機的一半，傳動效率高，電機功率僅為普通曳引機的50 %左右。
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