輸電損耗 的英文怎麼說
中文拼音 [shūdiànsǔnhào]
輸電損耗
英文
transmission losses- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 損 : Ⅰ動詞1 (減少) decrease; lose 2 (損害) harm; damage 3 [方言] (用尖刻的話挖苦人) speak sarcas...
- 耗 : Ⅰ動1 (減損; 消耗) consume; cost 2 [方言] (拖延) waste time; dawdle Ⅱ名詞1 (壞的音信或消息) ...
- 輸電 : transmission; transmit electricity輸電導線 transmission conductor; 輸電量 transmission capacity; ...
- 損耗 : 1. (損失消耗) loss; wear and tear; deterioration; waste 2. [商業] wastage; spoilage
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Principles for transmission loss allocation and its analysis
輸電損耗的分攤原則Zmd catena of self inhale magnetic force pumps adopt structure of electrical engine direct link form, by centernog prop up, the structure is tightly, teardown and maintenance is convenient, adopt high - powered magnetism stuff nd fe boron to make inside and outside magnet. isolationsheath assembled make of import nonmetallic material, avoid magnetism backset ullage of the run - of - mill pumps have drastically
Zmd系列自吸磁力泵採用電機直聯式結構,由中間支架支撐,結構緊湊,拆卸維護方便,採用高性能磁性材料「釹鐵硼」製造內外磁體,隔離套採用進口非金屬材料,徹底消除了一般磁力泵具有的磁渦流損耗,可輸送高濃度,密度大於1 . 84 t mAs a new component of sensor, fiber grating have many instinctive advantages, such as light in weight, anti - cauterization, anti - interference in electromagnetism, high - sensitivity and compaction in construction. it is very easy to be coupled with fibers and the coupling - loss is slight. using fiber grating ’ s character of sensitivity for stress ; people have done some envelope experiments on structural systems ( such as storied buildings, bridge, railway and dam )
光纖光柵傳感器除了具有重量輕、耐腐蝕、抗電磁干擾、靈敏度高、結構緊湊等優點外,還有其獨特的優越性,如探頭尺寸小,其直徑與光纖等同;易於與光纖耦合,耦合損耗小;波長調制型,抗干擾能力強;集傳感與傳輸於一體且具有極強的復用能力,易於構成傳感網路;測量對象廣泛,易於實現多參數傳感測量等等。At 400 kilovolts, a standard value for long - distance transmission, an alternating current 30 metres ( 100 feet ) from the ground has a fortieth of the loss of a similar cable at ground level
在遠距離傳輸的標準電壓400千伏下,電纜離地30米( 100英尺)時的電量損耗是同樣電纜在地面時損耗的四十分之一。Because the cross - section of the oversized rib waveguide we fabricated by wet - etching was trapeziform, we analyzed the transmission of oversized rib waveguide by combining effective refractive - index method. the influence of some factors on the optical transmission loss, such as material structure, the height of rib waveguide, and the thickness and refractive index of waveguide layer and up - layer of polymer material, was analyzed
因為濕法腐蝕工藝製作的反脊波導橫截面是梯形狀的,因此論文中採用了一種簡單有效的方法,即有效折射率法,對梯形反脊波導的光傳輸損耗特性進行了分析,同時考慮金屬電極產生熱場對脊波導傳播特性的影響。With soft - switching technology, inverter spot - welding power source has lower switching dissipation, lower electromagnetic interference and lower sensitivity to parasitic parameters of power circuit, contribute to inverter output characteristics and circuit efficiency, stability and reliability
採用軟開關技術的點焊逆變電源,可減小開關損耗、電磁干擾及對電路寄生參數的敏感性,並從根本上改善電路的輸出特性,提高電路的效率、穩定性和可靠性。After analyzing the switching characteristic of mosfet, the object function of optimizing curve of the output capacitance coss is confirmed according to the switching loss caused by output capacitance coss, then the optimized curve of the output capacitance coss is ascertained by applying zoutendijk to seek the optimized value with constraint ; the simulation of switching circuitry and dc - dc circuitry is tested at different frequency in pspice, then the least square method is adopted to fit simulation curves to calculate corresponding energy data
在電子線路模擬軟體pspice中進行了mosfet開關電路以及典型dc dc轉換線路模擬測試,針對不同頻段的測試結果,採用最小二乘擬合法對模擬曲線進行擬合,計算出相應的能量數據,最後綜合模擬結果確定出減小器件開關損耗,提高dc0c轉換線路效率的器件輸出電容cob優化曲線。Wireless induction communication method is based on electromagnetic induction principle, using the electromagnetic coupling to transmit data between the train and ground. this communication system can cover a long rail and it is easy to maintain and fix
無線感應通信是基於電磁感應原理,利用電磁耦合完成車輛與地面雙向數據傳輸的一種通信方式,具有傳輸損耗小、覆蓋線路長、架設方便、易於維護等優點。In this paper, the research progress of ac losses of high temperature superconductors and the existing problems on ac losses investigation are introduced ; the characteristics of the critical current and ac losses of hts tapes, stacked tapes and hts coil, such as electro - magnetic characteristics, the anisotropy, the mechanics characteristics and the effects of insular layer between stacked tapes and the influence of frequency of ac transport current etc, are investigated
本文在系統介紹高溫超導體的交流損耗及其研究現狀與存在問題的基礎上,從理論和實驗兩方面,研究了bi系高溫超導單根帶材、多根超導並聯組合帶材、及超導線圈的臨界電流與交流損耗的特性:重點研究了交流損耗與臨界電流的電磁特性、機械特性、各向異性特性、及帶間絕緣層與傳輸電流頻率對交流損耗的影響等。With the increasing requirements for detecting distance, photoelectric module, including light source and modulation, can be put under water to reduce the loss of light power in the optical fiber transmission and transmit the detected signal to the signal processing workstation on the shore. optical transceivers must be applied to realize the low - rate optical communication between the workstation on the shore and the long - distance photoelectric modules under water
隨著光纖水聽器陣列技術的發展,可將光源與調制部分作為遠程光電模塊置於水下,減少光纖傳輸過程中光波信號的損耗,而直接將光纖的探測信號傳回岸基工作站進行處理,以增加光纖水聽器的探測距離。A much smaller power loss occurs in the cable when energy is transmitted at high voltage.
用高壓輸送電能時,沿輸電線的功率損耗小得多。Application of branch power loss allocation method in fair allocation of transmission power losses
支路損耗分攤方法在輸電網損公正分配中的應用High voltage is the best way to transmit power ( the higher the voltage, the smaller the loss ), but high voltage is not usually what the user wants
但是由於交流輸電線路在長距離輸電的情況下損耗太大,時至今日「全歐聯網系統」仍未建成。With the development of electronic technology in the field of high - frequency and high - power, power mosfet is gradually enhancing its important status in semiconductor apparatus and is being widely applied in power converters as switch. with the increasing of the operating frequency ( > 200khz ), the energy loss caused by parasitic capacitance will affect the efficiency of power transforming in converters. especially in the applications of high frequency power supply using mosfet as main devices ( the unit of frequency is mhz ), the energy loss caused by the switch process will badly affect its efficiency
隨著電力電子技術進一步向高頻的大功率用電領域發展,功率mosfet在各種電力半導體器件中的重要地位日益顯著,使用功率mosfet作為開關器件的功率轉換電路也日益增多,但隨著器件開關頻率的提高(大於200khz ) ,由器件極間電容引起的能量損耗將會影響到功率轉換電路的能量傳輸效率,特別是在以mosfet作為開關器件的高頻感應加熱電源中(工作頻率可達兆赫) , mosfet在開關過程中的能量損耗嚴重影響到電源的效率,因此如何減小開關器件的損耗提高高頻功率轉換線路的效率成為電力電子技術領域的重要研究課題之一。Based on quasi - linear model of sr motor, the influences of angle on phase current, output power, energy loss are analyzed. an optimum result of angle is produced in accordance to given target
基於sr電機的準線性模型,本文分析了開通角和關斷角與相電流、輸出功率以及損耗之間的關系,並根據給定的優化目標,給出了該電機開通角和關斷角的優化結果。From the perspective of minimum transmission losses, an instantaneous reactive power theory for systems with any number of phases and with or without neutral line is developed. under the new definition, each quantity has its own physical meaning, and the zero sequence current can be decomposed into active and reactive components. furthermore, a generalized compensation method for zero sequence current is developed
從輸電損耗最小的角度出發,提出了任意相無中性線或有中性線系統的瞬時無功功率理論,在新的理論下,每個量都有清晰的物理意義,且能分解出零序電流的有功分量和無功分量,並給出了通用的零序電流補償方法,揭示了瞬時無功功率理論與傳統平均意義下的無功功率理論的聯系及本質區別,從而為研究hvdc - vsc及各種facts裝置的無功功率控制奠定了理論基礎。On the condinary, much reactive capacity loaded would be bad, and net ' s voltage would be higher and its security would be influenced. with the needs of reducing line loss, to study the method of compensating reactive capacity has been an important task in power department
同理,如果就地投入補償過大,多餘的無功就要通過輸配電線路向其他設備或區域輸送,也會造成無功和有功損耗,使得用戶的電壓偏高,影響到電力網的安全經濟運行。Based on the theory of branch complex power, accurate formulas are derived to determine complex loss and flow components in power elements. to overcome the deficiencies of the traditional methods which transmission cost is allocated to users only based on active power flow and the existed using portion definitions which fail to take it into account that the interaction of active and reactive power, a new definition of the using portion of a power element by a particular generator or load is addressed
針對當前輸電費用只按有功潮流進行分配,無法計及無功潮流交叉影響的缺陷和基於傳統的電路理論無法結合有功無功潮流來定義元件使用份額的問題,本文又在復功率電源的支路功率分量理論基礎之上,基於發電機和負荷的復功率在支路上引起的有功損耗分量,給出了發電機和負荷對元件使用份額的新定義。Thus the reactive compensator can be located in the center of the distributed load in the area and make the best user of the compensator ' s capacity. the distance flowed by the reactive current is efficiently reduced and the active loss of power net goes down. two - stage control model is adopted in the optimized control technique of the system
該系統採用了測量點與補償點與分開的方式,實現了區域性無功負荷監視,使無功補償點可以安置在區域性分散負荷的中心部位,最大程度地利用了補償容量,有效地縮短了無功電流傳輸的距離,降低了電網的有功損耗。With the increasing of digital cable transmission frequency, srl ( structural return loss ) on - line evaluation using diameter data of digital cable core became a method of cable quality control. higher measuring precision and higher measuring speed of the diameter gauge was required
此外,由於數字通信電纜傳輸頻帶的提高,對均勻性要求也不斷提高,採用直徑信息來在線評估數字通信電纜的srl (結構回波損耗)成為也質量控制一種方法,這就對測徑儀的測試性能提出了更高的要求。分享友人