無電抗的 的英文怎麼說
中文拼音 [wúdiànkàngde]
無電抗的
英文
non-reactive-
Unmanned air vehicle ( uav ) plays a very important role in nowadays research. recently, the applied range of the uav has expended into military, civil and scientific research scopes : in military scopes, it can be used to be detectors and monitors, electronic countermeasure, fire guidance, war evaluation, target simulation etc ; in civil scopes, it can be used to geodetic survey, detect urban environment, survey globosity resource, prevent forest - fire, pretend environment and succor disaster etc ; in scientific research scopes, it can be used to survey and research atmosphere, also it can validate new technology and now facility
隨著時代的發展,無人機在社會的各個領域起著越來越重要的作用,近年來,無人機的使用范圍已拓展至軍事、民用和科研三大領域:在軍事上,可用於偵察監視、電子對抗、火力制導、戰果評估、目標模擬等;在民用上,可用於大地測量、地球資源勘測和森林防火、環境保護與災害救援等;在科研上,可用於大氣研究、氣象觀測、新技術新設備的試驗驗證等。Some studies on control modes of the system, especially on a dc, pm, brushless and sensor - less motor driven systems. a method of rotor position identification without sensors has been developed. using a microchip to increate system efficiency, anti - disturbing ability and reliability of pwm modulation
研究了適于直流、無刷、永磁、無位置傳感器電機轉子位置的檢測方法;採用單片機實現了該種電機的運行控制,提高了系統在pwm調制時位置檢測換相控制過程的抗干擾能力。2. the reactor is soaked with epoxy and its coil is sealed by fiberglass cloth. in reactor coil, mylar and fiberglass is adopted as wire isolation material
2 .電抗器由環氧樹脂浸過的無緯玻璃絲帶對線圈進行包封,電抗器線圈採用絕緣性能優良的聚脂薄膜及玻璃絲作為導線的匝絕緣。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A method for preparing deionized water containing a substantially 100 % saturated concentration of a non - reactive cleaning enhancing gas
一種用於制備包含基本為100的無電抗清洗增強的氣體飽和濃度的去離子水的方法? ? ?Made of compound refractory with high purification and binder free from phosphor. used for slag line and weak section of eaf, strong adhesion, high binding strength at high temperature, erosion resistant, long service life
採用高純合成材料和無磷結合劑生產的高性能噴補料,適用於各種電爐的渣線及熱點部位的噴補維護.具有附著率高,高溫結合強度好,抗沖刷性能優異,使用壽命長的優點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 exportation resistance of a device work device with what link after loading the resistance s the certain connections for should satisfying, in order to prevent mount to load the appearance produce the obvious influence. with each other connect to say to electronics equipments, for example after signal connect the enlarger, ex - class to connect class, only behind first - degree importation resistance before larger than first - degree exportation resistance 5 - 10 times are above, can think the resistance to match good ; connect the box come saying, electronics tube the machine should choose to use with for the enlarger its output to carry the mark to call the resistance the box for, but transistor enlarger then have noing this restrict, can take officing why resistance of equal or approximate box
一件器材的輸出阻抗和所連接的負載阻抗之間所應滿足的某種關系,以免接上負載后對器材本身的工作狀態產生明顯的影響。對電子設備互連來說,例如信號源連放大器,前級連后級,只要后一級的輸入阻抗大於前一級的輸出阻抗5 - 10倍以上,就可認為阻抗匹配良好對于放大器連接音箱來說,電子管機應選用與其輸出端標稱阻抗相等或接近的音箱,而晶體管放大器則無此限制,可以接任何阻抗的音箱。Then the paper uses the same typical four network operating conditions as the primary given conditions and when adding one set of the parallel capacitor bank, changing the 330 / 220kv transformer tap changer position step by step to change the transformer ration, through this study methods this paper found out all the optimized combination of the tap changer position and the amount of input reactive power, also obtained four sets of the 330kv, 220kv and hokv s / s bus voltage and the active and reactive power losses changing curves. through analyzing the optimized combination control curve and the network power flow, the paper generalizes the rules as following : the chief measure of coordinative control is inputting shunt reactor in chengxian s / s in winter time both in the planning year of 2010 & 2005 ; in summer time in planning year of 2010 the chief measure is to input proper shunt capacitor
本研究通過分析所獲得的最優綜合控制組合曲線及電網潮流,總結出了如下規則:隴南電網在2005年及2010年冬大、以及2005年夏小運行方式下,綜合控制應以成縣變投入適量並聯補償電抗器作為主要措施;在2010年夏小運行方式下則投入適量並聯補償電容器作為主要措施,再輔助以選擇合適的主變有載調壓分接頭來調節,達到控制網內無功潮流分佈合理、各變電站母線電壓在理想的范圍內時電網有功損耗最小,從而也提高了電網安全運行水平及供電質量。High voltage shunt capacitor installation is comprised of capacitor cabinets or steel racks capacitor, spe - cial fuses for capacitor overload protection, capacitor discharge device, air - cored reactor which is applied to restrain surge current and high freq. harmonic, zno arrester without gaps for overvolage - limiting and high voltage vacuum switch etc. capacitor cabinet is made of highquality cold - rolling steel plate
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等設備組成。This modeling method is applicable to most of facts and hvdc devices, not only to those devices including thyristor - controlled reactor ( tcr ), such as thyristor - controlled series capacitor ( tcsc ) and static var compensator ( svc ), but also to those devices including converter bridge, such as hvdc device and static synchronous compenstor ( statcom ), etc. it deduces the mathematical models of tcsc, hvdc, svc and statcom devices with the proposed method
該方法能適用於大多數facts裝置和hvdc裝置,不僅可用於含有晶閘管可控電抗器( tcr )元件的裝置如可控串聯電容補償( tcsc ) 、靜止無功補償器( svc )等的建模,也可用於含換流橋的裝置如hvdc裝置、靜止同步補償器( statcom )等的建模。本論文採用動態相量法建立了tcsc 、 svc 、 hvdc及statcom裝置的數學模型。It is means that gahc would be harmless to the stability of other generators, when it is used to reduce the ste of local generator. the simulating tests of gahc used on steam turbine and hydro turbine had been done in single machine system and multi - machine system. the results of simulating tests show that the generator stability could be improved by gahc, it is harmless to the stability of other generators in multi - machine system
在單機系統和三機無窮大系統中對汽輪發電機和水輪發電機的gahc控制進行了模擬實驗,模擬實驗結果驗證了: gahc提高了汽輪發電機和水輪發電機抵抗三相短路故障擾動沖擊的能力; gahc在多機系統中對其它發電機的穩定性不會產生危害作用;水輪機的gahc克服了水錘效應對穩定性的危害作用。The study bases on the four operating conditions of which the longnan network will be implemented in the year of 2005 and 2010. first, this paper calculates the power flow distribution that including the line charging reactive power and input of the low - voltage shunt reactor in chengxian s / s. assumed that the bus voltage of tianshui s / s and bikou power plant to be constant, the study count the voltage level of the 330kv and 220kv bus - bar when the 330 / 220kv transformer in standard tap changer position. in order to set control rules
本文基於隴南電網在規劃發展水平年2005年及2010年的四種可能的運行方式下及潮流條件,計算出了計入線路充電無功及投入成縣變低壓並聯電抗器后的潮流分佈,在設定甘肅大網側及碧口電廠側母線電壓恆定條件下,計算了330kv及220kv主變在有載調壓標準分接頭變比下的330kv及220kv母線電壓水平。The principle of magnetic valve type controlled reactor is introduced. based on a example, its applicable effect in reactive compensation is discussed
摘要簡要介紹了磁閥式可控電抗器的基本工作原理,並通過實例說明了其在無功補償中的應用效果。The power angle characteristics are acquired and compared with the unsaturated curves. it is concluded that the stability limit of the power angle is less than 90 degree. reactive power regulating curves are calculated and compared with those curves when saturation effect is not considered, the result is that u type curves are deviated to the right
通過對同步發電機各種運行曲線的計算,在已有文獻的基礎上更進一步分析了鐵磁材料飽和以及磁場畸變對同步發電機運行特性和參數的影響;求出了空載特性曲線和零功率負載特性曲線,在不同的電樞電流下計算得到的波梯電抗不同;求出了功角特性曲線,與不計飽和時的功角特性曲線相比較,功角穩定極限小於90 ;求出無功調節曲線,與不計飽和時相比較, u型曲線向右偏移。A new viewpoint to observe the relation of bus voltage, bus current injection and branch current of the network considering branch mutual inductance has been provided in this paper. the process of building the z - matrix of a large - scale power network is set forth in particular in this paper. and the method is employed in the fault computation system successfully
本文為了從演算法上提高故障計算的速度,在完全計及支路互感的前提下,利用節點注入電流與支路電流以及支路電流與節點電壓的關系,提出了一種能夠統一處理互感和無互感線路、快速形成大規模電網節點阻抗矩陣的新方法。The reactor is adopted dry - type air - cored structure and its coil is made of high quality naked copper wire. the epoxy bakelite block is used as underlay between coil trays, entire coil is firmed with unmagnetized clamps and the bare metal part of reactor is covered by anti - corrosive material
電抗器為乾式空心簡式結構,線圈用優質裸銅線製作,線盤間墊環氧酚醛布板塊,整個線圈用無磁性夾件緊固,電抗器外露金屬部分有良好的防腐蝕層。Associated with three research projects, this work is mainly concerned with array elements, array structure and calculations of array impedances versus operating frequencies. in the dissertation, the author ' s major contributions are as follows : a new types of array structure, known as circular reflection array, is proposed and studied. a detailed analysis to the new structure with two cases is presented
本文緊密結合「十五」國防預研「軟體無線電天線」和海軍預研「智能天線在艦艇上的應用」及「機載微帶天線」等項目,著重對智能天線陣列的陣列單元、陣列結構、陣列阻抗的頻率特性計算等技術進行了分析和研究,所取得的主要成果如下: 1In the design and debugging process we found that two different caps with parallel connection may make the amplifier instability. with the analyses of the nonideal cap molding we found that the response curve of two different caps with parallel connection has a saltation whose impedance is infinity and at this pot the amplifier is easy to oscillate. than some suggestion of the use of cap in amplifier design is presented
在放大器的設計、調試過程中發現兩個不同容值的電容並聯會帶來電路的潛在不穩定,對實際電容,即帶有寄生電感和寄生電阻的電容,建模、分析后發現,不同容值的電容直接並聯其響應曲線會有一個阻抗值為無窮大的突變點,該突變點可能會引起電路的自激。The millimeter has the largest frequency band and the highest velocity of communication, but it has the highest cost and technical defaults : multi - path effect, reflect and scatter caused by cloud, smoke, water - dropping, the buildings, the grounds and its shape, the interference caus ed by the thunder, the complexity of device, difficult maintenance, and so on. now the band of the leakage coaxial line is up to 3ghz, leakage coaxial line has some advantages : good adaptability to cloud, smoke, water - dropping, the buildings, the grounds and its shapes, good steady field, it has some technical defaults : lower resolution for location and measuring velocity, the more complex of its sending - receiving relay devices, weak anti - interference, the strict demand for the hole size in the line, the cleaner work environment and the higher cost
毫米波具有最大的帶寬和最高的通信速率,但也有最高的成本要求和較難克服的技術問題,即傳播的多徑效應,降水、雲霧、地形、地貌、建築物等的反射散射,打雷時的嚴重干擾,設備復雜,維護困難等等;泄漏同軸電纜的帶寬目前已做到3ghz ,具有對地形地貌建築物的適應性強,場強穩定,但它的定位測速精度低,它的收發中繼設備較復雜,抗干擾能力低,電纜上的開槽有著嚴格的尺寸要求,工作環境要求清潔,成本較高;傳統無線感應技術具有結構簡單,成本低廉,維護方便,定位精度較高的優點,但是,它沒有抗干擾能力。分享友人