轉速范圍 的英文怎麼說
中文拼音 [zhuǎnsùfànwéi]
轉速范圍
英文
range of speeds of rotation- 轉 : 轉構詞成分。
- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 范 : 名詞1 [書面語] (模子) pattern; mould; matrix 2 (模範; 榜樣) model; example 3 (范圍) boundar...
- 圍 : Ⅰ動詞1 (四周攔擋起來 使裡外不通; 環繞) enclose; surround; corral 2 (繞; 裹) wrap Ⅱ名詞1 (四...
- 轉速 : speed; revolution; rotation rate; speed of revolution; rotating speed; rotational speed轉速指示器...
- 范圍 : scope; limits; extent; boundary; confines; range; range dimension; spectrum
-
The test shall demonstrate to the satisfaction of the owner that the equipment meets all specified performance criteria, is properly installed and anchored, and operates smoothly throughout the specified speed range without exceeding the full load amperage rating of the motor or excessive motor heating
測試應該讓用戶滿意,證明這些設備符合所有規定的性能標準,經過正確的安裝和錨固,在額定轉速范圍內運行平穩,沒有超過電機的額定滿負荷運轉電流安培數,或發生電機過熱。After the running test, the scope of speed is from 50 to 2500 r / m. the system has a good performance and high efficiency, achieves the anticipative result
本系統經過試驗,調速范圍可達50 2500轉分,效率較高,性能優良,基本上達到了預期的目標。In the first part of this paper, mn ( iii ) / mn ( ii ) couple in h2so4 was firstly applied as the positive couple to this system, i. e. redox flow cell. its chemical, electrochemical properties, redox kinetics and related parameters were characterized and discussed by rotating disc electrode ( rde ), cyclic voltammetry ( cv ), a. c. impedance ( a. c. imp ), chronoamperometry, tafel curve, and galvanostatic charge / discharge techniques. conclusions have been drawn as follows : 1. the electrochemical kinetics of mn ( iii ) / mn ( ii ) redox couple in 6. 3m h2so4 solution were studied by means of rotating disc electrode ( rde ) technique on platinum electrode
本文第一部分首次成功地將酸性介質中的mn ( iii ) / mn ( ii )電對應用於氧化還原液流電池這一新型儲能裝置的正極活性材料,通過旋轉圓盤( rde ) 、循環伏安( cv ) 、交流阻抗( a . c . imp ) 、恆電位階躍、 tafel實驗以及mn ( iii ) / mn ( ii )單電極的恆流充放電實驗,我們得出以下結論: 1 .在旋轉圓盤電極上,不同轉速范圍,不同的極化過電位, mn ( ) / mn ( )體系氧化還原電極過程的控制步驟不同,電荷傳遞、擴散傳質可分別或聯合成為控制步驟。The results show that the inertial forces have less effect on deformation of ballistic spring within a limit range of rotation speed, and the deformation can be ignored
分析表明,在通常轉速范圍內,旋轉慣性力對彈道簧變形影響很小,可以忽略。Xh, xb series high power gear units is a brand - new model of rigid tooth flank gear reducers with wide application areas, which has the feature of large torque range, a design of unit structure modulization capable of horizontal mounting and vertical mounting, three kinds of output shafts - solid shaft, hollow shaft and hollow shaft with shrink disk
Xh xb斜傘系列大功率減速機xh xb斜傘系列大功率減速機是全新型硬面減速機,具有大轉矩范圍,採用單元結構模塊化設計可臥式安裝也可立式安裝。有實心軸空心軸和收縮盤空心軸輸出。The system uses hybrid flux model to make the rotor flux constant during full speed range
為了保持轉子磁通恆定,採用了混合式磁通模型,它可以保證全速范圍內磁通觀測的準確性。At first, large numbers of tests have been done to test seeds " fragmentation ratio. then, the other performances are measured by an apparatus in right range of fragmentation
測定其排種時的破碎率,分析嚴生破碎的原因,並在破碎率小於0 . 5的轉速范圍內檢測排種性能的各項指標。It is indicated that, when a two - speed motor is used for driving oil transfer pump, the motor with the characteristic of torque reduction on square rotary speed should be chosen ; the working economy of the variable speed pump is restricted by the characteristic curves of pipeline resistance, and its speed control range is restricted by the pipeline resistance characteristic curve, the pressure head needed by the system and the working characteristic of the pump ; when several pumps work in parallel, the pump with better performance should be changed into speed - variable pump
指出雙速電動機用於輸油泵的調速時,應選用轉矩按轉速平方降低特性的電動機;調速泵的運行經濟性受到管路阻力特性曲線的限制,其調速范圍受到管路阻力特性曲線、系統所需揚程和泵運行特性的限制;在母管制系統中把部分定速泵改為調速泵時,應將性能較高的定速泵改為調速泵。This paper applied many methods to eliminate the estimation error of the flux linkage. finally, a sensor - less dtc pmsm system is implement and has a good performance
系統的調速范圍可達1 : 100 ,電機額定轉矩的階躍響應時間為1ms ,動態響應優秀。At the rated setting torque point, under the base speed, we found the equalizing link efficiently improves system performance comparing the results
對比補償前和補償后的結果,在基速范圍內,在額定轉矩點,補償手段有效的改善了系統的靜態和動態性能。The speed can be adjusted incessantly at the required speed range. the motor also can be kept at the same speed even when the load is three times of the rated load. moreover, the universal of this controller is strong, and the heat dissipation is good
永磁無刷直流電動機控制器樣機的測試結果表明:電機轉速可在要求范圍內連續調節,在幾乎三倍的額定轉矩范圍內,電機轉速在設定值下可保持高於指標精度的穩定工作,控制器之間通用性強、散熱可靠。This thesis is about the torque ripple minimization of switched reluctance motors ( srm ) under the base speed. based on the instant torque control strategy, aiming to minimize the torque ripple of srm during commuting and to obtain excellent dynamic and steady state performances
本文主要研究開關磁阻電動機(簡稱sr電機)在基速范圍以下轉矩脈動的抑制問題,研究時以瞬時轉矩控制為基礎,旨在減小換相期間sr電機的轉矩脈動。The benchmark rev equipment is designed to provide speed reference for tacho generator ' s testing, which has high velocity precision, wide speed range and stepless speed adjustment
高精度轉速源是為測速發電機的校準測試提供速度基準的驅動系統,具有轉速精度高、調速范圍寬及無級平滑調速的特點。The paper researches and designs a driving benchmark rev equipment used for tacho generator ' s testing, the characteristic of which is high velocity precision, wide speed range and stepless speed adjustment
本文研究設計的是為測速發電機的校準測試提供驅動的基準轉速源,具有速度精度高,調速范圍寬,平滑無級調速的特點。Further more, a finite element analysis of flywheel rotor was made to increase the security of the flywheel ' s test, 9 modes frequency were taken out according to the rotating speed of the flywheel, the results can act as the theory base for the structure design and tests of the flywheel
為了增加飛輪實驗的安全性,本文利用有限單元法對飛輪轉子作了模態分析,抽取了飛輪工作轉速范圍內的9階模態頻率,可作為飛輪結構設計和飛輪實驗的理論基礎。In order to minimize the commutation torque ripple of traditional trapezoidal bldcm using 120 cconduction mode, firstly, analytical formulae of commutation torque in the condition of perfect back - emf waveforms are developed in this thesis, based on which the effects to the torque ripple by the pwm modes, overlapping commutation techniques and so on are analyzed, and the applicable speed ranges of the motors using the overlapping commutation techniques are derived
為了抑制傳統的三相六狀態120導通方式控制下方波型無刷直流電動機的換相轉矩脈動,本文首先在理想反電動勢的條件下推導了換相轉矩脈動的解析公式,並由此分析了調制方式、重疊換相技術等對換相轉矩脈動的影響,得出了採用重疊換相技術抑制換相轉矩脈動適用的電機轉速范圍。A new bearingless induction motor system with five degrees of freedom is developed including a bearingless induction motor and a permanent magnet biased axial - radial magnetic bearing. the control strategy of bearingless induction motor based on air - gap flux orientation is introduced, and the decentralization pid control is used to maintain equal air in the five degrees of freedom. the digital controller guarantees rotor suspension steadily, and the speed of rotor reaches 3000 rpm
闡述了無軸承異步電機的氣隙磁場定向控制策略,採用該非線性控制方法能使無軸承異步電機解耦成轉矩子系統和磁懸浮徑向力子系統,從而可以採用經典pid對這兩個獨立的子系統進行控制,首次實現了系統在0 3000rpm轉速范圍內的穩定懸浮。The simulation results indicate that the algorithm is suitable for the speed regulation of srm. within a wide speed range the system has a good regulation character and a high precision of steady state, also the system can well constrain the disturbance of the load torque varying
模擬結果表明,採用本演算法構成的sr電機凋速系統在整個調速范圍內具有良好的調節性能及穩態精度,對負載轉矩的變化造成的擾動輸入能夠很好的加以抑制。This paper makes the feasibility design and study of the dtc ( direct torque control ) system based on analyzing some important parts, such as the arithmetic model of asynchronous motor in - coordinates, the choice of voltage vectors, and flux - linkages models, etc. the research work in this paper is described as follows : 1 analyzing of the dtc theory : material about the development and theory of dtc, the composing of dtc - system are presented in this paper
本文在詳細分析了定子坐標系下的異步電動機數學模型、電壓空間矢量和磁鏈觀測器的基礎上,利用直接轉矩控制技術,構建了基於dsp的直接轉矩控制系統。論文的主要工作包括以下三個方面: 1直接轉矩理論分析研究:針對直接轉矩控制理論在低速范圍轉矩觀測器和轉速波動等問題,採取了滯環模式切換,矢量細分等改進措施。This paper studies on used the ac servo system based on ti dsp ( lf2407a ) and the foc and digital signal processing thorem, achieves following results : algorithm. we employ svpwm ( space voltage pwm ) algorithm, improve the efficiency of the electric source, and decrease the harmonious elements. we build the mathematic model of the system and simulate it on matlab platform, dsigne segmented pid regulator to adapt variable speed and widen the speed range. measurement. the velocity and electric current measuring, we adopt multi - sampling - rate and digital filter principles. as more improvements we make, the whole system gets a good results. pc control. the complete controlling system can be controlled remotely. so we develop the pc controlling program.
採用磁場定向脈寬調制演算法,提高了電源利用率,降低了逆變電壓的諧波,改善了電機的運行特性,降低了對電網的污染;在matlab平臺上建立了交流永磁同步伺服電機和電壓空間矢量脈寬調制控制系統的數學模型,在模擬的基礎上,對傳統pid調節器進行了改進,提出轉速調節器和電流調節器採用分段pid結構,根據給定轉速所處的區間,自動選擇相應pid調節器的參數,拓寬了調速范圍,提高了控制精度。分享友人