power variable 中文意思是什麼
power variable
解釋
動力變數-
Win2000 bed lift is of personalized design, ultra - stable operation, to offer quietness and comfortableness to the greatest extent to patients with warm colors. it is provided with variable voltage variable frequency device, to produce the best operating curve in accordance with the physiological requirements of human body, to show make the safe, comfort, stable and excellent perfomance in the whole process during the operation of the lift from start, acceleration, deceleration to stop. optional cut - off emergency leveling device may be equiooed at the demand of user to ensure that the passengers inside the lift can be rescued in case of power cut - off accident
Win2000系列病床電梯以人性化的設計，超平穩的運行，給予病患者最大程度的安靜舒適增添溫馨的色彩。採用先進vvvf調頻調壓調速裝置，按人體生理要求由電梯優化產生最佳的運行曲線，使電梯的起動加速減速停止過程處處體現安全舒適平穩的卓越性能。根據用戶要求可選裝停電應急平穩裝置，確保以外停電時，被困電梯內的乘客能及時獲得解困。 -
The paper analyses the principle of variable frequency source and brings forward that using electric electron technology make variable frequency output, and using high power dynatron that is parallel connection magnify power
文中對該變頻電源的工作原理及主要硬體作了較詳細的介紹；提出利用電力電子器件實現輸出大功率。 -
This paper brings forward one new method in the selection of supply chains cooperators : hierarch variable weight priority - degree evaluation method, it aims to solve some problem that which can not be solved with normal power integration methods, such as it can ' t take the demand of equilibrium and inspiritment into account, and it usually contraventions the principia that decision factors can not substitute each other
摘要針對企業在選擇供應鏈合作夥伴時，常權綜合方法難以體現決策者對決策因素的均衡性要求和激勵性要求，以及常權綜合方法常常違背決策因素間不可替代性的弊病，提出了一種基於可拓理論和變權理論的新方法層次變權優度評價法。 -
Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last
在基於專家系統的故障診斷方法中，採用了產生式知識表達和正向推理機制；在基於神經網路的故障診斷方法中，則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷，並對由模擬得到的不同診斷結果進行比較。 -
For a class of series - wound active power line conditioner the design approach law of a new fuzzy integral sliding mode variable structure control is presented. this method adjusts power electronic switch in order to achieve anticipated balance volt, finally makes active power line conditioner not only possess good robustness of variable - structure control and decrease vibration to the most but also increase the steady state precision. series - wound aplc adopted this control method possesses good dynamic and steady state performance
針對串聯型有源電網調節器運用變結構控制策略，調節電力電子開關模式，以獲得預期的平衡電壓，對串聯型有源電網調節器提出了模糊積分變結構控制方法，使串聯型有源電網調節器既保持了常規滑模控制強魯棒性的優點，又減弱了滑模控制的抖振，提高了系統的穩態精度，使系統具有良好的動態和靜態性能，模擬試驗表明該控制策略是一種十分有效的控制方法。 -
A. hydraulic pressure adapts constant power variable axial piston pump for energy saving
液壓泵採用恆功率自動變量軸向柱塞泵，以節省能源。 -
The standardized regression coefficient has been a common tool for assessing the effect, predictive power or explanative power of an independent variable ( iv )
摘要多元回歸里的標準化回歸系數常被用來表達一個自變項的作用、預測力或解釋力。 -
By use of electronic inverter, variable speed constant frequency ( vscf ) electrical generating system converts variable frequency ac power from generator to constant frequency ac power
變速恆頻電源系統是通過電子變換器將發電機輸出的變頻交流電轉換成為飛機用電設備所需的恆頻交流電。 -
To illustrate the effect of variable feed rate, the pressure and power draw changes with fluctuations in feed rate are calculated on the table below
瞬間的壓力變化及峰值出現是由熔融粘度瞬間變化導致的。 -
Through analyzing and researching the problem of variable frequency to working frequency of high - power electromotor in theory, the key of conversion is pointed out in the paper. on the basis of analyzing equivalent circuit diagram and vector - diagram of induction - motor, the phase of working frequency power whether or not consistent with the output phase of variable frequency power at the moment of conversion is the key to decide whether the conversion is successfully
本論文針對大功率電機變頻轉工頻轉換存在的問題在理論上作深入細致的研究，根據感應電動機的等效電路和相量圖分析，指出大功率電機變頻轉工頻能否成功，關鍵在於變頻轉工頻瞬時，工頻電源和變頻輸出電源是否相位一致。 -
The flow field structure of the power - turbine variable - area nozzle stage of a marine gas turbine
船用燃氣輪機動力渦輪可調導葉級的流場結構 -
The working principle, application range, merits and demerits of internal feedback speed regulation, variable - frequency speed regulation, and hydraulic coupler speed regulation are presented, as well their applications in power plants
摘要介紹火電廠電動機調速方案中的內饋式調速、變頻調速、液力偶合器調速原理、適用范圍和它們的優缺點，在火力發電廠的應用實例。 -
In the sociaty of the relational orientation, personal relation between the personnel of channel boundary may be an important variable that influences the use of channel power
摘要在關系取向的中國社會，渠道邊界人員間私人關系是影響渠道權力運用的一個重要變量。 -
The paper has done all - around study on the ac excited of variable - speed constant - frequency ( vscf ) wind power generation. the author has done thorough study on the vscf wind power generation technology using wound - rotor doubly - fed induction generator, from simulation to experiment, from theory to practice. he also did at large theory analysis to the vscf wind power generation technology using cascaded brushless doubly - fed generator, and has established stability theoretical foundation for continue study work
本文對交流勵磁變速恆頻風力發電領域的關鍵技術進行了較為全面的從模擬到實驗、從理論到實踐的深入研究，同時對具有廣泛潛在應用前景的級聯式無刷雙饋發電機變速恆頻風力發電技術也進行了洋盡地理論分析，為今後進一步的深入研究奠定了一定的理論基礎。 -
Variable - frequency power supply of industry vibrator based on 80c196mc
的工業振動棒專用變頻電源 -
Finally, the prototype of closed - loop control system of mc has been designed. a seris of experiments have been made, and the results show that the closed - loop control of mc presented here is correct. also, the mc closed - loop systems based on the method can be applied to the variable frequency power supplies
最後，製作了輸出電壓有效值控制矩陣變換器閉環系統的原理樣機，進行了一系列實驗測試，結果表明採用雙空間矢量策略矩陣變換器實現輸出電壓有效值閉環控制是正確有效的，輸出電壓有效值控制矩陣變換器閉環系統作為變頻電源設計也是切實可行的。 -
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。 -
The engineering drilling machine of kp2500 type is a species of full hydraulic pressure rotating plate - drilling machine developed by our company newly, this drill adopts full hydraulic pressure drive, con stant power variable loop, wheel cylinder startup and electrohydraulic multiple operation, the drill can adjust torque according to stratum situation and reduce pressure to deep drilling automatically
Kp2500型工程鉆機是我公司最新研製的一種全液壓轉盤式鉆機，該機採用全液壓驅動，恆功率變量迴路，分泵起動，電液復合操作，鉆機能夠根據地層情況調整扭矩和減壓自動鉆進。 -
Based on these advantages we analyze the performance of constant - power variable - rate m - qam schemes for spectrally efficient data transmission over nmf channels. by introducing the adaptive modulation approach, we gain two things : 1 ) the error rate is kept at a constant level. 2 ) the achievable spectral efficiency comes within 5 db of the shannon capacity limit. at the last chapter, the presentation of a single base station and a single mobile scenario proved the feasibility of adaptive schemes
然後作者的精力轉入通道的自適應方案的研究中，首先通過研究發現nakagami衰落因子的適當調整可以近似於常見的瑞利衰落和萊斯衰落，接著研究在無線通道中採用三種不同自適應方案時的通道容量，研究表明速率的調整是增加通道容量的關鍵，在此基礎上，著重研究了離散變速率qam的情況，表明這種調制方案無論在頻帶利用率還是在系統平均誤碼率比其它情況提高很多。 -
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。
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