load vector 中文意思是什麼
load vector
解釋
載荷矢量-
The elements of the load vector, {p}, are the load components tabulated in numerical sequence.
加載向量P的元素是按編號順序列表的加載分量。 -
The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,
基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。 -
Win600 automobile lift has the same control system as freight lift, i. e. micromputer control or plc control, and the same tracyion system as freight lift, i. e. vvvf vector control, to make it safe, reliable, stable, comfortable, energy - saving and of high leveling precision as freight lift. the car is equipped with four or six symmetric guide rails, to solve the problem of wobbling caused by the unbalance load of car and reduce the noise of operation, the door is equipped with reliabe optical screen protction or infrared electronic protecyion, to ensure the safe entry and exit of automobile. the double - controller design inside the car gives convenience to the operation of automobile driver
Win600系列汽車電梯的控制系統與載貨電梯一樣採用微機或plc控制，拖動系統樣採用vvvf矢量控制，因此，同樣具有安全可靠平穩舒適節能環抱平層精度高的特點。轎廂採用對稱的4根活6根導軌導向，解決了轎廂裝載不平衡引起晃動的問題，降低了運行的噪音。轎門裝有高可靠的光幕保護活紅外線電眼保護，保證汽車安全的進出。 -
Natural gas load forecasting based on least squares support vector machine
基於最小二乘支持向量機的天然氣負荷預測 -
By analyzing the basic principle of voltage space vector pwm, a method is proposed to choose the zero vectors dynamically according to the power factor angle of the load and the concept of the lag angle of non - switching sectors
在分析了空間矢量pwm基本原理的基礎上，提出了一種根據負荷功率因數角動態分配零矢量的方法，並引入了不開關扇區滯后角的概念。 -
The client uses the scheme based on browser and java applete together. the map display mode uses the scheme based on vector map and grid map. thus the better combination of functions with load can be gained through respective strongpoints
客戶端採用了基於瀏覽器和java小應用程序的結合方案，而地圖的顯示方式也採用結合矢量圖和柵格圖的方案，這樣可以利用各自的優點來達到更好的功能負載結合點。 -
Each unit of transformer is tested in accordance with the following items : winding d. c resistance test. measurement of turn ratio and calibiation of voltage vector relation. measurement of impedance voltage and load loss
直流電阻測試匝數比測量及電壓矢量關系的校定阻抗電壓及負載損耗的測量空載損耗及空載電流的測量工頻耐壓測試感應耐壓測試絕緣電阻測試局部放電測試外觀和尺寸的檢驗銘牌的檢驗等。 -
The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced
論文第二章首先簡單介紹了交流異步電動機變頻調速技術的發展概況，在回顧電梯液壓控制系統節能技術的基礎上，介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理，分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式；詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計，重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容；最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。 -
Through the loss model of lim, best efficiency control scheme is proposed based on the vector control, by which low efficiency of lim under light load or low speed is improved. the control scheme is proved effective through simulation under a specified speed - location curve
通過建立電機損耗模型，在矢量控制的基礎上設計了最優效率控制策略，解決了輕載或低速運行時的效率低下問題，通過指定速度位置曲線下的模擬分析驗證了控制策略的有效性。 -
And it can be controlled running at a rating slip, when its efficiency is the highest. then, simulation model of lim vector control system is constructed, which is proved accurate by simulation results under different speed and different load. and it is concluded that lim efficiency is lower under light load or low speed
其次，建立了考慮邊端效應的直線感應電機矢量控制系統的模擬模型，不同速度和負載下模擬結果驗證了模型的有效性，得到了電機在輕載或低速運行時效率較低的結論。 -
As the ratio of peak samples to total training samples is low, the prediction accuracy of peak load is poor when applying support vector machine ( svm ) model to predict a periodical load
在應用svm模型于具有周期性負荷的預測時，由於在訓練樣本中峰值或谷值樣本所佔比例很少，從而導致峰值荷載預測精度不高。 -
At the same time, the vector load index is used as the key parameter overload detecting algorithm too
同時，向量負載指數也作為本文提出的解決scp過載檢測的關鍵參數。 -
Based on clear boundary condition of dam shoulders, with rigid limit equilibrium vector method, baihetan hydroelectric power station dam shoulders anti - sliding stability analyzing program is compiled. then, by using above program, the anti - sliding stability of dam shoulders in different modes and different load patterns are calculated in respectively, and their stability is evaluated. the analysis results indicate that the anti - sliding stability of baihetan dam shoulders can meet the need of arch dam design
在查明壩肩抗力體邊界條件的基礎上，利用剛體極限平衡分析中的矢量法在文獻[ 1 ]基礎上編制了白鶴灘壩肩抗力體抗滑穩定性分析程序，並對白鶴灘壩肩抗力體的不同荷載情況下大塊體的穩定性進行了評價，結果表明：白鶴灘壩肩抗力體的穩定性總體上達到了拱壩設計的要求。 -
The elements of the load vector, { p }, are the load components tabulated in numerical sequence
加載向量p的元素是按編號順序列表的加載分量。 -
Based on the initial parameters format of the distortion theory in this paper, the element stiffness matrix and the corresponding equivalent nodal force vector subjected to uniformly distributed load is developed
在初參數格式的基礎上，本文又推導出考慮剪切變形的畸變分析的剛度矩陣及等效節點載荷列陣，獲得便於實際應用的畸變分析剛度法。 -
The distribution gis data management methods and its application in distribution running are systematically researched, which compose distribution gis network topology analysis ( nta ) and optimal rush - maintain path ( orp ), and distribution planning, which composes distribution spatial load forecasting ( slf ) : ( 1 ) with systematic analysis on the relationship between spatial data model and spatial data structure, the distribution feature and the two common gis data models are analyzed, which are vector and raster data models. then the conceptual and logic data models of distribution gis are designed. the spatial data storage structure is given by using vector method, and their detailed data management methods are proposed
（ 4 ）將gis的空間信息分析功能應用於配網空間負荷預測（ saptialloadforecasting ， slf ）的研究：綜合利用灰色理論及遺傳規劃的優點，提出了一種根據饋線的歷史峰值負荷進行外推的組合slf法：首先採用負荷轉移耦合法來修正負荷歷史，消除由於負荷轉移引起的誤差；然後根據實際饋線路徑和配網gis圖形分層，運用圖層疊加分析得到饋線的實際供電范圍；接著採用灰色關聯度聚類方法對饋線負荷增長曲線進行聚類分析；最後採用遺傳規劃來對灰色聚類結果進行符號回歸，分別得到每一類曲線的最佳擬合曲線形式。 -
Class to load and display vector images
類加載和顯示矢量圖像。 -
The rayleigh - ritz method is used to lead to analytical expressions for the stiffness and mass matrices and load vector as well as their sensitivities, which uses the simple polynomials to define assumed displacement functions, geometry and construction of wing structures. excluding some selected terms from the displacement functions or using stiff springs at the specified locations imposes boundary conditions. the accuracy of calculated results is improved by including transverse shear effects and using multiple sets of ritz functions in the analysis
它使用簡單多項式作為ritz基函數、定義翼面的幾何和結構參數，利用rayleigh - ritz方法導出翼面結構的剛度矩陣、質量矩陣和載荷向量及其靈敏度的解析表達式，通過排除位移函數中某些選定的項或在指定點使用約束彈簧施加各種邊界條件，考慮橫向剪切變形和使用多組ritz基函數改進分析的質量，使用等效蒙皮和等效夾芯技術提高計算效率。 -
The positive load take absolutely advantage in the first spatial pattern of year and seasons. especially that the precipitation field load of winter is all positive. not in the southwest of china because of southwest monsoon etc. system ; the characteristics of the second spatial pattern are that most of the area is taken up by positive load in year and four seasons, the west of talimu basin is the center of negative load of the year, spring and autumn vector fields ; east of zhungeer basin is the center of positive load of the third spatial pattern of year, spring, summer and winter, the center of negative load is often in east of chaidamu basin, but the distribution center of autumn is in east of zhungeer basin ; the distribution of the fourth spatial pattern is difficult to describe and forms several centers of positive and negative load ; several centers of positive and negative load also appear, the distribution of load fields of the fifth spatial pattern of year, spring and winter represents the situation of " +, -, + " from southeast to northwest ; the complexity of the sixth spatial pattern is more stonger than that of the fourth and the fifth spatial pattern, several centers of load fields of year and each season often appears inverse situation of the positive and the negative load. but the centers are still most in zhungeer basin, chaidamu basin and talimu basin
第一空間型中，年和四季都是正荷載占據絕對優勢，特別是冬季降水場皆為正值，只是西南地區由於受西南季風等系統的影響，表現為與其它地區的不同；第二空間型的特點如下：年和四季分佈皆為正荷載占據大部分區域，負荷載中心年、春季和秋季分佈中都是位於塔里木盆地西部地區；第三空間型正荷載高值中心除秋季外都是處在準格爾盆地以東地區，負荷載中心多在柴達木盆地以東地區，秋季卻處于準格爾盆地以東地區；第四空間型分佈就較復雜無章法可言，形成多處正負荷載中心；第五空間型特徵是這樣的，同樣是多個荷載中心出現，年、春季和冬季中的荷載場分佈從東南到西北大體呈現「 + 、 - 、 + 」的特點；第六空間型分佈的復雜程度較之第四、第五空間型更大，年和各季分佈比較中多個荷載中心常出現正負相反的情況，但中心仍以柴達木盆地、準格爾盆地和塔里木盆地為主。 -
Short - term load forecasting based on support vector machine
基於支持向量機的短期負荷預測
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