負載因數 的英文怎麼說

中文拼音 [fùzǎiyīnshǔ]
負載因數 英文
load factor
  • 負 : Ⅰ名詞1 （負擔） burden; load 2 （虧損） loss 3 （失敗） defeat Ⅱ動詞1 [書面語] （背） carry on th...
  • 載 : 載Ⅰ名詞（年） year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • 因 : Ⅰ動詞[書面語] （沿襲） follow; carry on Ⅱ介詞1 [書面語] （憑借; 根據） on the basis of; in accord...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 負載 : [電學] load
  1. In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory

    由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果
  2. Based on the study of transferring characteristics of the lcc - type resonant voltage, the parameter combinations, which make widths and magnitudes of voltage pulses of resonant network adjustable, arededucedo when the following requirements are met : fn > 3, k > 3 or cp / cs > 8, the above circuit is of natural voltage - stabilized characteristics, thus open - loop control method for bucking voltage is presented and the experimental results verify that the method is feasible.,

    實測整機在額定負載時效率達到88以上。在研究lcc諧振網路電壓傳輸特性的基礎上，推導出滿足可變寬度和幅度的諧振網路輸出電壓脈沖列的參數組合。設計f n 3 、 k 3或c _ p / c _ s 8時，諧振網路具有自然穩壓特性，因此本文提出並實驗驗證了一種整機為降電壓時的開環控制策略。
  3. The harmonic circulating current balancing is an important factor in the parallel operating control for it makes the units of the system to get. an equal power factor and makes foundation for the system to work stable and reliable

    並聯電源系統的諧波環流均分控制是實現負載的失真功率均分，保證各並聯單元的輸出功率因數均衡，保證並聯系統穩定可靠工作的一個重要方面。
  4. In order to solve the default of the limited valid scope and discontinuity characteristic, introducing the state continuous conversion gene based on establishment of respective mathematics model for low and magnitude current scope, and integrate with them reasonably then having established the mathematics model of suitable whole scope and having solved present mathematics model existent problems

    本文針對目前電弧爐負載數學模型存在的適用范圍有限、特性不連續等缺點，在建立了分別適合大、小電流區域運行特性的數學模型的基礎上，引入狀態連續轉換因子，將分別適合大、小電流區域運行特性的數學模型有機結合為一個整體，建立了適合全范圍的數學模型，解決了目前數學模型存在的問題。
  5. Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system

    首先在流變學原理的基礎上，深入分析混凝土在輸送管道內的流動狀態，得出混凝土泵的負載特性方程；然後根據功率鍵合圖的建模方法，建立泵送迴路和分配迴路的數學模型，並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬，分析了在不同的輸入流量（泵送頻率）和換向時間下，活塞桿的位移和系統的液壓沖擊情況，找到了引起液壓沖擊的根本原因（即分配迴路的響應時間（固定值）與活塞桿的運動時間（變化值）不相匹配） ，並提出了相應的改進方法。
  6. Under the result of the inverter ' s steady sate study, the limitation limited by two factors : the minimum time of opposing voltage and the ajustive range of power factor can be gained. a qualitative analysis method based on energy decomposing is applied to study the initialized energy

    在討論串並聯逆變器穩態工況的基礎上，從最小反壓時間和功率因數調節范圍兩個限制條件，求出允許的穩態運行極限負載，啟動電路在此極限負載下能可靠地啟動就足夠了，追求更高的啟動能力沒有實際意義。
  7. Comparative experiment testified that agno3 was better than cucl2, if supported on the same ac modified by 30 % hno3, while silica gel was better than ac modified by 30 % hno3 as a support, if loaded with the same amount of agno3

    對比實驗表明，同樣以30硝酸氧化的承德果殼炭為載體，硝酸銀與氯化銅相比，分離因數較高，但乙烯吸附量稍低；而在同樣的硝酸銀負載量情況下，與活性炭相比，以硅膠作載體時吸附劑性能更佳。
  8. This paper describes mainly system functions, measuring methods, circuit design, software program and errors analysis of a new type of measuring instrument. this instrument can measure and monitor electric parameters in single - phase circuits, three - phase ( three - wire or four - wire ) circuits. this system can be applied to electric devices and power plants, transformer substations with harmonic pollution. it can measure current, voltage, power, energy, frequence, power factor etc. it also can detect load quality, phase sequence, alarm, display and print results, as well as detect and dispose negative power

    該儀器適用於含有諧波污染情況下的機電設備現場、發電廠、供電局、企業變電所現場，可用來測量電流、電壓、有功功率、無功功率、視在功率、有功電能、無功電能、視在電能以及頻率和功率因數等電參數，並具有負載性質（感性、容性）判別，正、逆相序判別指示功能；超限報警功能；列印記錄功能和負功檢測及處理功能。
  9. But modern electrohydraulic servo systems have obvious nonlinear characteristics and often are required to have the ability to trace any curve function and endure relatively big outer disturb. so the working dot of the system changes greatly during the working process, which makes the linear model inapplicable

    然而電液伺服系統中存在著明顯的非線性特徵且近代電液伺服系統往往要求系統具有點點跟蹤任意非直線函數的能力並能夠承受較強的外負載干擾，因此工作過程中系統的工作點在較大的范圍內變化，從而使增量線性化模型難于奏效。
  10. In this dissertation, the beijing downtown area distribution system capability is evaiuated based on fuzzy theory according to the present condition of beijing distribution system. factors considered in this dissertation affecting the capability are including as follows : feeder load rate, voltage offset, network 1oss and n - l analysis. the load allocation in beijing distribution system of downtown area is got, and conclusion of the whole fuzzy distribution capability is reached

    本論文根據北京城區配電供電網現狀，應用模糊數學的方法，對影響配電網的供電能力的各個因素：線路負載率、電壓偏移、網損和n - 1校驗分析進行了評估，得到了北京城區配電網的負荷分佈情況和整個北京城區配電網供電能力的模糊水平。
  11. To ensure safe and reliable operation. however, as unscheduled machine downtime can upset deadline and cause heavy fmacial losses, improvements were sought in the field of fault diagnosis. in 1970 ' s a new technology of electrical machines " fault diagnosis - condition monitoring has arisen. the technology could judge and diagnose the faults by advanced technology and analysis instrument when the machine is on - line

    70年代興起的設備故障診斷技術是一門新技術，它能實現設備在帶負載運行、不停機的情況下，通過使用先進的技術手段對設備狀態參數監測和分析，判斷設備是否存在異常或故障，故障的部位和原因以及故障的劣化趨勢，以確定合理的檢修時間和方案。
  12. When running in closed - loop system, the motor will be affect inevitably by load disturbance ? and disturbance due to variety of motor parameter, then the dynamic performance of closed - loop is affected

    無刷直流電機閉環運行時，不可避免地要受到外部負載擾動和由於電機本身參數變化而產生的干擾。因此，電機閉環控制系統的動態性能就會受到影響。
  13. Especially when lots of inductive fecilities are applied, the supply capability of electric net will be sharply declined

    相對于發達國家，我國大部分城鄉電網的功率因數一直都偏低，特別是大量感性負載的應用使得電網供電能力大幅下降。
  14. It is well known that internet can only provide best - effort service. in this way, all traffic flows are treated fairly and they contend for the same network resources, so the expected qos only depends on the current traffic load of the link

    眾所周知，傳統的因特網提供的是一種「盡力而為」的單一服務方式，所有的數據流被「一視同仁」 ，公平的競爭網路資源，預期的服務質量qos只能依賴于鏈路上當前流量的負載情況來決定。
  15. 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。
  16. Because of the number of table scans and table sorts in the tpc - h workload, prefetching data from disks into memory is important for optimal performance

    因為tpc - h工作負載中表掃描和表排序的數量較多，所以為獲得最佳性能將數據從磁盤預取到內存是很重要的。
  17. It analyses the causes to bright image movement, studies principle to compensate image movement, conforms project to compensate image movement, and designs framework to compensate image movement in the article ; to analyze and design configuration of the scanning mirror, to select matters of mirror and its support structures on the principle of consistent line expansion coefficient ; to ascertain type of moment electromotor by most rotating angle speed and most rotating moment which are required by loads in the period to take pictures, as well as by figuration size of electromotor ; to design retarder according as the electromotor parameters ; to design and optimize lightweighted mirror shapes, because the mirror is key part ; to design flexure support structure, to analyze static and dynamic characteristics of the support structure by name of patran program for validating desig n rationality ; to study function of the scanning mirror electric control system ; to test precision of the system, the results indicate the rationality of design of the scanning mirror system

    本文通過分析像移產生原因、研究像移補償原理，確定像移補償方案，並根據像移補償原理設計補償機構；分析與設計掃描反射鏡系統結構，根據材料線膨脹系數一致原則，選擇反射鏡及其背部支撐的材料；由掃描反射鏡在擺掃周期內的最大擺掃角速度確定力矩電機的額定轉速，根據負載力矩確定電機的額定轉距，綜合電機外型尺寸等因素，確定執行元件? ?電機的型號；根據所選電機的參數指標，設計1 ： 6速比的減速器；利用patran軟體對掃描反射鏡系統中的關鍵件? ?反射鏡進行輕量化設計與優化；設計反射鏡柔性支撐結構，並通過軟體分析支撐結構的力學特性，驗證反射鏡柔性支撐結構設計的合理性；從原理上研究掃描反射鏡控制系統功能；進行系統精度測試，測試結果表明掃描反射鏡系統設計的合理性。
  18. Calculation of the current rating of electric cables. part 1 : current rating equations 100 % load factor and calculation of losses. section 2 : sheath eddy current loss factors for two circuits in flat formation

    電纜載流量計算.第1部分：載流量公式100 %負荷因數和損耗計算.第2節：雙迴路平面排列電纜金屬套渦流損耗因數
  19. Calculation of the current rating of electric cables. part 1 : current rating equations 100 % load factor and calculation of losses. section 1 : general

    電纜載流量計算.第1部分：載流量公式100 %負荷因數和損耗計算.第1節：一般規定
  20. Made analysis for the link budget of the wcdma initial plan, and confirmed the parameters such as region coverage, load factors and system capacity based on link budget

    分析了wcdma無線網路初始規劃中的鏈路預算，以及通過鏈路預算預測小區覆蓋、負載因子、系統容量等參數的確定。
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