非有功功率 的英文怎麼說
中文拼音 [fēiyǒugōnggōnglǜ]
非有功功率
英文
fictitious power- 非 : Ⅰ名詞1 (錯誤) mistake; wrong; errors 2 (指非洲) short for africa 3 (姓氏) a surname Ⅱ動詞1 ...
- 有 : 有副詞[書面語] (表示整數之外再加零數): 30 有 5 thirty-five; 10 有 5年 fifteen years
- 功 : 名詞1 (功勞) exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
- 率 : 率名詞(比值) rate; ratio; proportion
- 有功 : have rendered great service; have performed meritorious service
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Experimental results show that the bistable of tuned substrate self - bias was determined by discharge gas pressure, discharge power and tuning circuit parameters etc. the bistable exists is because of there is capacitive coupling in icp system and sheath capacitance is nonlinear
實驗結果表明這種跳變回滯現象與等離子體的放電氣壓、射頻功率以及調諧外電路的參數等多種因素密切相聯系。而產生跳變回滯現象的原因是icp中存在容性耦合以及鞘層電容具有非線性特性。4 the average power of a non sinusoidal periodic current is equal to the sum of powers of all its fourier series components
非正弦周期電流電路的平均功率等於其傅里葉級數展開式所有分量的功率之和。Secondly, this paper illustrated the nonlinear phase dynamic theory of the aia array and the application of it to power - combining and beam - scaning technique. according to these theories, the coupling parameter of nearest neighbors was found by experiment, then the two - element and three - element aia array were designed, and the result of measurement was in agree with that of the nonlinear phase dynamic theory, and the beam - scaning of two - element array was realized by tuning the free oscillation frequency of the elements
其次,本文討論了有源集成天線陣列的非線性相位動態理論以及它在功率合成和波束掃描方面的應用,包括同步工作條件、穩定條件和相位動態方程等,通過實驗確定了陣列中相鄰單元間耦合參數,並將之運用於有源集成天線二元陣和三元陣的設計,實驗結果與理論結果吻合較好。There is a period of soil contents range from ten to twenty five days over the humid discussed area in summer, and the period is not obvious at the discussed zone of close oasis desert area in summer and winter. ( 2 ) soil temperature exits several periodic variations of different depths ranging from six to twenty four days in heihe region, and nine to thirty days in gaize and shiquanhe region. it also shows that gradient of soil temperature affects on the soil content movement more greatly in summer. ( 3 ) the land surface temperature of yangtze river lower region is retrieved from noaa - ahvrr data
( 2 )根據土壤溫濕資料,採用功率譜分析、 pca分析等方法,分析了兩種典型下墊面土壤溫度的時空分佈特徵及其對土壤水分運動的影響,發現研究區土壤溫度除日和年變化周期外還存在6 30天的不同周期;下墊面的非均勻性及其季節變化及溫度梯度變化對土壤水分運動有很大影響,冬季溫度梯度變化對土壤含水量影響大於夏季溫度梯度對上壤含水量變化的影響,且溫度梯度與水分運動方向相反。Taking load uncertainties, infeasibility problem and multiple objection of the reactive power optimization in the radial distribution system into consideration, loads are modeled as fuzzy interval numbers. fuzzy power flow is proposed based on fuzzy interval load for the more practical membership function of line losses rate and maximal voltages offset. this thesis presents multiple objection model of the reactive power optimization considering uncertainties using the fuzzy set theory
對配電網電壓無功優化問題中負荷的非概率性的不確定性問題、多目標問題、約束不可行性問題進行了研究,用模糊區間來描述實際的負荷情況,並用負荷的模糊區間值計算配電網的潮流,得到有功功率損耗和電壓的模糊區間值,使網損率和節點電壓最大偏移量的隸屬函數更接近實際情況;將改進遺傳演算法與模糊集理論相結合,通過求解多目標函數和約束條件的模糊集合的交集,得出網損率和節點電壓最大偏移量最小的最優運行狀態。Usually, hpm devices working in the high current and large field amplitude state, after the field reaches saturation, the nonlinear effects will become extremely strong so that the intrinsic nonlinear phenomena ( for example limit cycle oscillation and chaotic behavior ) of the system occur. these nonlinear behaviors directly influence the output characteristic of the devices
在通常情況下,高功率微波源器件都工作在大電流和強場工作狀態,尤其在場達到飽和以後,系統的非線性效應將變得非常明顯,非線性系統所特有的一些現象(如,極限環型振蕩和混沌行為)將出現,這些非線性現象直接影響器件的各種輸出特性。Despite of the high ownership of the private auto and the sophisticated metro system in europe, north america and australia, brt still has been successfully implemented in many developed counties according to various traffic demands, land usages and different financial situations
在歐洲、北美以及澳大利亞等發達國家,雖然小汽車私人擁有率非常高,並且已有較完善的軌道交通系統,但是快速公交系統根據各個城市的交通需求、城市土地規劃以及城市的財政狀況,仍有成功的推廣。Three phase oil - immersed distribution transformers, 50 hz, from 50 to 2500 kva with highest voltage for equipment not exceeding 36 kv - determination of the power rating of a transformer loaded with non - sinusoidal currents
小於36kv設備的帶有最高電壓值50hz 50 - 2500kva三相油浸式配電變壓器.載有非正弦電流的變壓器額定功率測定Finally, this paper illustrated the nonlinear phase dynamic theory of the active integrated antenna array and the application of it to the power - combining techniques
最後,本文討論了有源天線陣的非線性相位動態理論以及它在功率合成技術方面的運用,包括有源天線陣的同步工作和保持一定的相位關系。The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本質是逆系統方法的一類,並結合具體課題推導出的模型方程將dfl理論進行了擴展,使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程,此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力系統簡化的數學模型,並將擴展的dfl理論應用於此模型系統,結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門(考慮發電機的飽和因素)進行了對比,證實了採用此種控制器可以有效地提高電力系統的暫態穩定性,並且在電力系統遭受小干擾時同樣具有良好的調節性能。For example, the figures of " successful rate of research grants application and allocated funds " were the total amount of research funds received, but not per capita figures, and the two basic as - level language subjects were not counted in the calculation of the " admission grades "
例如在研究成功申請率與撥款額方面,數據只以總量計,而非人均比率計收生成績方面,該調查亦沒有計算基本的中英文成績等等。It ’ s very important to establish the obscuration ’ s model and analyze its influence to the laser propagation
因此建立散射點的模型,分析散射點對光傳輸的影響對于建設高功率固體激光裝置具有非常積極的意義。Experimental results show, with the not - uniform two - direction ballasting technology, the peak junction - temperature at the center of the chip can be lessened 7 - 10 surface temperature of the case can also reduce 3 - 7, and the heat - dissipating property of the power devices has distinct improvement
實驗結果表明:具有非均勻雙向鎮流電阻結構的雙極功率器件,其晶元中心峰值結溫ih了村技人學博士論文可降低7 10ac ,谷殼表面的溫度也可降低3 7c ,器件的敝熱特性明顯岱島。The predistortion, which aims at compensating for the nonlinear distortion caused by the power amplifier, has a good performance in eliminating the nonlinear distortion of am / am & am / pm, improving the aci and spectrum efficiency
預失真技術是針對射頻功率放大器非線性而提出的一種補償技術,可以有效消除由非線性造成的傳輸信號的幅度和相位失真,降低信號鄰道干擾( aci ) ,提高頻譜利用效率。The method of both active power measuring and the analysis of the nonlinear measuring error in its power measurement circuit
電動系功率表測量非正弦單相有功功率的讀數推證Abstract : it is essential to research radar clutter with non - gaussian spectrum and non - r ayleigh distribution in modern radar design. based on spherically invariant rando m process ( sirp ), this paper applies a new algorithm to model the clutter with k d istribution in amplitude and any power density spectrum. at last it is proved tha t thi s method is correct and applicable with real simulative clutter and statistical detection result
文摘:研究並模擬具有非瑞利幅度分佈和非高斯功率譜的雷達雜波是現代雷達信號處理中的一個重要的研究課題.文中基於球不變隨機過程( sirp )的建模方法,針對實地採集的幅度滿足k分佈並具有有理功率譜的高解析度雷達雜波,運用現代譜估計演算法對其進行建模和模擬,並以模擬雜波與實際雜波的數據對比和統計檢驗的結果對該方法進行了驗證The basic idea is that increasing the equivalent harmonic impedance of power network by valid control of active filter, in order to enhance the performance of passive filter and damp the resonance between the passive filter and the equivalent inductance of the power network
無源支路在補償無功功率的同時還可以濾除因非線性負載產生的特徵諧波電流,為了抑制無源支路跟電網等效電感產生的諧振現象以及改善無源濾波器的濾波性能,系統中採用諧振注入式有源濾波拓撲。Tangyin substation is an important substation which has two transformer of 120mva, eight 220kv lines and three 110kv lines. tangqian line is a 110kv line specially for traction transformer substation. because traction load is high - power nonlinear and asymmetry. it will produce much harmonic and negatvie sequence current, which have done harm to compensation capacitors of tangyin substation. in recent years, the tang6c capacitor often interrupted and in 2001 july the tang7c capacitor ' s discharge pt exploded
湯陰變電站是豫北一座樞紐變電站,有2臺120mva的主變, 8條220kv線路和3條110kv線路,其中的湯牽線是專為牽引變電站供電的110kv線路。由於電力機車屬于大功率的非線性負荷,且三相不對稱,在其運行過程中必然會產生較大的高次諧波和負序電流。The ultimate carrying capacity, fracture process and stress - strain relationship on rock generic material are studied with dissipation structure theory in this paper, which shows the essence of mechanical characteristics on rock generic material can be studied deeply from the point of view of system and energy
研究結果表明巖石類材料變形系統具有耗散結構的特性,巖石受力產生變形是非線性動力學過程,即系統內部各要素之間發生協調和相干效應,巖石承載力(強度)是外界做功功率和巖石自身耗散能率達到平衡的外在力學表現。Detect non - linear load active power in circuit
非線性負載有功功率檢測原理分享友人