無電容的 的英文怎麼說
中文拼音 [wúdiànróngde]
無電容的
英文
non-capacitive-
The enhancement of process, the feature size of device becomes smaller, and the deductions of the power supply require the art of design should be consummated. this article firstly makes a detailed analysis and expatiation for the operational principle and design technique of switched - capacitors - filter. then realize the filter design in biquadratic method and z - domain synthesis
本文在對開關電容濾波器的工作原理及設計方法進行了系統的闡述和分析的基礎上,分別用雙二階方法和z域合成法實現了適用於dtmf信號的開關電容濾波器的設計,並用無錫華晶0 . 6 mcmos工藝( csmc60 )進行了模擬。In order to eliminate the influence of the output filter capacitor current on the grid current, a novel control strategy for the grid - connected inverter in grid - tied and off - grid modes is proposed. the control strategy can also realize seamless transfer between grid - tied and off - gird modes. the grid - connected inverter can supply power to the critical load when the grid is off
本文針對傳統並網控制策略進網電流受輸出濾波電容電流影響的問題,提出了一種新的並網控制策略,該控制策略能基本消除輸出濾波電容對進網電流的影響,實現獨立與並網兩模式之間的無縫切換,對關鍵負載起不間斷供電的作用。Appling closed loop control strategy in the power factor dynamic compensation system. then the key techniques, for example, the fashion of real time sampling idle current and the fashion of compensation capacitor connected with, the time when the compensation capacitor are thrown up, are researched
針對本系統的應用對象,確定了本系統中所應用的無功電流實時檢測理論和方式、補償電容器接線和分組方式、補償電容器投入時刻的選擇等關鍵技術;並對can技術應用於功率因素動態補償系統進行了研究。Simox soi wafers produced by ion implant processes were used in this experiment. the results for simox soi samples we got here revealed that all the three structures are valuable for soi electrical characterization and sis structure has irrefragable advantage over the other two structures. the soi transistors have been the key devices for achieving the low voltage operation and low power consumption, because of the small junction capacitance, the small s - factor, and the small substrate bias effect
這三種模型分別是:第一,將傳統的mos電容結構應用到soi材料上來進行c - v , i - v測試,分析計算soi材料的重要電學性能參數;第二種,針對soi材料的特殊結構,為了適應生產線上對無損soi園片進行電學性能測試的要求,應用mosos結構來對soi材料進行電學性能表徵。By examining the new generation condutive polymer material 3 , 4 ? polyethylene dioxythiophene ( pedt ), this paper investigated the edt monomer synthetic path and the optimum filming conditions of the compound pedt. based on this research, i also discussed the manufacturing processes and the related principles of the solid tantalum capacitors, when replacing the conventional inorganic material mno2 with the pedt as the negative pole
本文以新一代導電聚合物材料3 , 4 ?聚乙烯二氧噻吩( pedt )為研究對象,研究了edt單體合成路線及聚合物pedt的最佳成膜條件,並以此為基礎,討論了以導電聚合物有機材料pedt取代傳統的無機材料mno2作陰極的固體鉭電解電容器的制備工藝及相關機理。Among various fabrication techniques of thin film, the sol - gel process has gained much interest for the preparation of pzt thin film, due to ihe advantages of good homogeneity, easy control of composition, low in - ill i reaving temperature, easy formation of large area thin films pb ( zrxti : - k ) 0 :, ( pzt ) films were prepared on the ito coated glass plates and low resistor silicon wafer in sol - gel dip - coating process associated wi di heat treatment : at different temperatures and characterized by x - ray diffraction ( xrd ) and transmission electron microscopy ( tem ). lt is shown that the pzt ferroelectric thin films with ( 110 ) preferred orientation and well - crystallized perovskite structure can be obtained after annealing at 680 ? for 30 minutes on ito substrate and at 800 " c for lornin on silicon substrate
Pzt的制備方法有很多,其中溶膠?凝膠( sol - gel )方法可以和集成電路( ic )光刻工藝相互兼容,處理溫度低,有大面積塗敷性能,能精確地控制組分,無需復雜的真空設備,成本低廉,所以對于集成鐵電薄膜電容的應用這種方法有很廣闊的前景。本文利用sol - gel技術在摻錫的in _ 2o _ 3透明導電薄膜( ito )襯底和低阻硅襯底上成功地制備了pzt鐵電薄膜。運用了x射線衍射, sawyer - tower電路和lcr電橋分別對薄膜的晶化溫度,結構和電學性能進行了測試。Its capacitance decreases under large discharge current, because anthracite - based hsaac has too many micropores and low transport speed of solvated ions in electrolytes
Gg無煙煤基hsaac在有機電解液中的質量比電容明顯小於其在水系電解液中的質。In the paper, the four methods based on the evaluation of source ’ s reactive power are analyzed. those are voltage sensitivity ( vs ), pv curves, back - up generation and equivalent reactive compensation ( erc ) methods
由此文章分析了四種評估無功容量價值的方法:電壓靈敏度法、 pv曲線法、備用發電量法和等效無功補償法。The voltage of bridge capacitor will become unbalanced, when inverter ' s input side is a single source. this phenomenon is inherent with the control of voltage feedback. a balance winding can overcome this shortcoming and widen the application of this circuit
採用單電源供電的半橋電路,如僅採用電壓反饋控制方案無法克服橋臂電容電壓的不平衡,通過加入平衡繞組可以克服這一缺陷,擴大電路的應用場合。High voltage shunt capacitor installation is comp - rised of capacitor cabinets or steel racks capacitor, special fuses for capacitor overload protection, capaci - tor discharge device, air - cored reactor which is applied to restrain surge current and high frequency harmonic, zno arrester without gaps for overvoltage - limiting and high voltage vacuum switch etc. capacitor cabinet is
高壓並聯電容器成套裝置主要由電容器櫃或鋼架電容器電容器過負荷保護專用熔斷器放電裝置專用放電線圈或電壓互感器,抑制涌流限制高次諧波的空芯電抗器和限制過電壓的無間隙氧化鋅避雷器及高壓真空開關In the past, a computer event recorder had to exactly match the hardware, and it could provide only limited functions. the users also had to spend much time to facilitate the operation ( dawkin, 1971 ; white, 1971 ; noldus, 1989 ). nowadays users only need to devote themselves to writing software, and they can ignore the compatibility issue of hardware because of improvements in computers
以往的電腦事件記錄器由於電腦不普及,必須密切的配合硬體,不但昂貴且功能受到很大的限制,使用上非常不方便,往往必須花相當多的時間來學習操作;現今由於電腦軟體和硬體的改良進步,使研究人員得以專心於軟體的寫作,而不必擔心硬體無法配合,而且利用軟體來記錄行為其功能可以多樣化而容易配合使用者的需求,一般操作過電腦的人可以立即進入情況,無須特別的訓練,可使得動物行為的研究更加方便而有效率。The analysis of the electric capacitor reactive comprehensive compensation in the electric power network
淺析配電網路的電容無功綜合補償The dc power supply consists of passive filter circuit. the capacity of passive filter is up to 264mf
設計的直流電源用最簡單的無源濾波電路,濾波電容的容量為264mf 。In the distribution system, many capacitor banks are applied to decrease the loss of the network. the harmonic resonance may be incurred between the network and the capacitor banks in the harmonic frequency, thus the security of the system may be destroyed because of the high harmonic distortion level
配電網中裝設了大量的電容器進行無功優化來降低網損,但在諧波頻率下,容易產生系統與電容器之間的諧波諧振或諧波放大,從而使系統的諧波畸變率變大,破壞了系統的安全運行。With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly
四川電網的二灘水電站和500kv輸變電系統投入運行后,由於二灘水電站的大量電力遠距離輸送至負荷中心,迫使負荷中心的火電機組在豐水期大量停機,使負荷中心失去電壓支撐,大大降低了電網的電壓穩定水平;同時,因為四川電網中的無功補償裝置全為靜態無功補償電容器(或電抗器) ,這些設備只能在系統正常運行狀態下起到無功補償和電壓支撐的作用,而在電網出現事故時,不但不能起到電壓支撐作用,反而會促使電網電壓崩潰事故的發生。The characteristics of damping shows that the uncompensated parallel ac transmission line can release the coupling between the hvdc and generator and improve the damping of the system, hence the possibility of subsynchronous oscillation decrease. in such a system scheme, the hvdc system dominates the changes of damping due to the small magnitude of the damping provided by ac line. when the ac transmission line is compensated with a fixed series capacitor, the situation will be totally different
其中,並列運行的無串補交流輸電線路可以緩解hvdc與其臨近機組之間的機電耦合程度,改善hvdc的電氣負阻尼特性,從浙江大學博士學位論文摘要而減輕機組發生次同步振蕩的危險性,此時系統的整體電氣阻尼特性由hvdc的性質決定;但若交流線路中存在串聯補償電容,則系統幅值較大的電氣負阻尼不僅可能使整流站機組發生次同步振蕩,逆變站附近機組同樣存在發生次同步振蕩的可能性,此時系統的整體阻尼特性由串聯補償電容的性質決定。Because of the clamping capacitor and the interleaved structure, it has some good features compared with other flyback converters, such as : the topology is simple and can be realized easily ; the voltage spike of the power switch is availably restrained and without leakage - inductance energy loss ; the ripple of the input and output current is reduced, correspondingly, the volume and weight of the output and input filter is also significantly reduced
由於箝位電容的加入,相對于其他類型的反激式變換器電路,該拓撲具有一些獨特的優點:電路結構簡單且易於實現;無需另加輔助開關管,實現了開關管的有源箝位,抑制了開關管的電壓尖峰;提高了輸入、輸出電流的脈動頻率,減小了輸入及輸出濾波器體積。In this part, the high - frequency series inverter with resonant pole capacitor is introduced mainly. the current - exchanging processes of the inverter in different working modes are analyzed, how to reduce the switching loss is discussed, and the calculating methods of snubber capacitor c, factor angle switching frequency and pulse width pw are given in optimum switching process. and results of simulation and experiment verify the validity of theoretic analysis
接著重點研究了含有諧振極無損緩沖電容的逆變器,對其換流過程中的不同工作狀態進行分析,討論了如何減小逆變器的開關損耗,給出了最佳工作狀態下緩沖電容c 、感性角、開關頻率、觸發脈沖的脈寬pw的詳細計算方法,並通過大量的模擬和實驗波形證明了理論分析的正確性。The specific capacitance of anthracite - based hsaac increases gradually with increase of the specific surface area, but the relationship between them is not linear dependence
隨著比表面積的增大,無煙煤基hsaac的比電容逐漸增大,但比電容的增加與其比表面積的增大並不呈簡單的直線關系。The rbf network has a better performance, and better forecasting accuracy. then mathematical model of substation voltage / var control is constructed, the squares minimization of voltage differences as target, also considering requirement of voltage and power balance, taking it into consideration that the magnitude constraint of transformer ratio and compensating capacitor, also that constraint of operation times of one day transformer tap and capacitor switch
因此提高了學習性能,具有較好的預測精度。然後,建立變電站電壓無功控制的數學模型,考慮電壓的調壓要求和無功功率平衡,計及變壓器變比和並聯補償電容的上下限約束,變壓器分接頭和電容器允許的日調節次數的限制,以電壓偏差的平方和最小為目標函數。分享友人