無功率的 的英文怎麼說
中文拼音 [wúgōnglǜde]
無功率的
英文
unpowered-
Compared to the traditional converter, the new one can transform electric power from a static part to a rotary part without an electrocircuit connection, which makes the contactless power transform come true. one application of this converter is to supply a steady and regulable excitation circuit for synchronous generator by integrated its second winding with the motor while its primary winding is static. the thesis gives two methods of the rotating converter design paticullarly : flyback and fullbridge, and explains how the circuits are designed
通過理論分析、模擬分析和實驗驗證,得出這兩種旋轉變換器都能進行感應電能傳輸,但它們的傳輸功率是不同的,反激式旋轉換器最大隻能傳輸幾十瓦功率的感應電能,因此只能用在感應電能傳輸較小的場合,或者信號傳輸的場合;而全橋式旋轉變換器能傳輸較大的功率,可用於電機的新型無刷勵磁方案中。Indomitable, never resting, fighting for seconds and minutes all week, circumventing delays and crushing down obstacles, a fount of resistless energy, a high - driven human motor, a demon for work, now that he had accomplished the week s task he was in a state of collapse
他整個禮拜都不可錢勝,為爭分奪秒而奮斗著,從不休息,消滅著耽誤粉碎著障礙。他是一股清泉,流瀉出無可抗拒的力量,是一部高功率的活馬達,一個幹活的魔鬼。By using a special filter to obtain the vibration of the disturbance, ( pe ), the governor additional controller will have nothing to do with the setting output of generator active power
通過提取p _ e的交變分量,使調速系統附加控制器與發電機輸出功率的額定值無關,即不影響發電機的正常運行。The control motors in the well traction robot require high temperature resistant, quick response, small volume and large power density. because coreless dc motors uses ironless - rotor, the inertia and inductance is very small, mechanical time constant is less than 28 milliseconds, several products can attain in less than 10 milliseconds. its weight and size are 1 / 3 - 1 / 3 less when compared with an iron core motor of same power
水平井牽引機器人對控制電機不僅有耐高溫要求,而且有響應快、體積小、能量密度大等要求,而空心杯電樞直流電動機由於無鐵心,故慣量和電感均大為減小,機電時間常數小於28ms ,部分產品可以達到10ms以內;與同等功率的鐵芯電機相比,其重量、體積減輕1 / 3 - 1 / 2 ,是低慣量電機中性能最好的一種。Driver ' s position : optimised layout, based on the latest ergonomic principles, considerably reduced vibration and noise, throunh insulating the operator ' s compartment from the vehicle itself by means of shock absorbes, seat adjustable to operator ' s height and weight, as well as being spring suspended and hydraulically damped. lindedouble pedal control system offers accurate reversing without. changing gear. linde central control lever operates all mast functions
駕駛室:根據人機工程學原理對駕駛室進行了優化設計.駕駛室與車身之間由減震墊隔離,大大地降低了震動和噪音,司機座下有彈簧和液壓減震裝置,並可根據駕駛員的身高和體重進行調整,以獲得最舒適的狀態.林德雙踏板控制系統具有無需切換即可實現靈敏向的功能:林德集中控制桿控制門架的提升,下隆和傾斜動作.發動機的轉速可根據提升和其它功能對輸出功率的需要而自動調節.護頂架與司機座聯成一體,並可裝配成舒適的全封閉駕駛室Direct acting indicating analogue electrical - measuring instruments and their accessories - part 3 : special requirements for wattmeters and varmeters ; amendment 1
直接動作指示模擬電氣測量儀器及其附件.第3部分:瓦特功率表和無功表的特殊要求.修訂件1Section iii proposes a possible organization of a reactive power market, a regional reactive power market established according to the distribution of the load and the reactive supply. the regional reactive power market is composed of a reactive energy market based on marginal pricing and a reactive capacity market based on a reactive regulating capacity payment. the cases in section iv, based on the market organization proposals and the reactive bid structure previously presented, performed on a five - bus system and the ieee 14 bus system, are used to analysis the effects of active bid, voltage control and power factor on the reactive marginal price
本文首先回顧了電力市場發展的歷史和現狀;然後對市場中的定價方法和無功輔助服務的內容及特點進行了總結,並介紹了一些國家的無功輔助服務市場模式和交易方法;接著立足我國國情,提出了單邊開放電力市場下的無功市場框架:即根據負荷和無功源的分佈特點建立區域無功市場,各區域無功市場又由相應的無功電量市場和無功容量市場組成;並提出了該無功市場模式下的機組報價模型和基於報價的以系統總購電費用最小為目標的無功電價計算方法;最後用一個5節點系統和ieee14節點系統進行了實例分析,初步研究了發電機有功報價、系統電壓控制以及負荷功率因數對無功電價的影響,得出了一些有借鑒意義的結論。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。So its naissance brings a lot of hope and promotion to application and deploitation of milimeter and submilimeter - wave. because of gyrotron, s superiority of high peak power and average power among many known milimeter and submilimeter - wave gyrodevices, it has been paid much respect in the world for application in many areas such as plasma heating, rf accelerator, millimeter radar, dew and so on
由於迴旋管具有在毫米、亞毫米波段其它器件無可比擬的高峰值功率、高平均功率的優越性,因此在受控熱核聚變等離子體的迴旋管加熱( ecrh ) 、電子高能rf加速、雷達系統、通信系統以及定向武器( dew )等方面都有著廣闊的應用前景。The electric power harmonic comprehensive control system with low cast and high security is applied in this article. it adopts that sourced compensation links with non - sourced compensation herewhich the former is realized by high frequency pwm control technology and the latter is carried out by crystal switch formed by non - flow and over - voltage. it can realize stepless modulation with imaginary power, mightiness compensation of harmonic and negative electricity, and circuitry consumption debasing are achieved
提出採用有源補償與無源補償相結合的電力諧波綜合治理技術及裝置,無源部分採用無涌流和過電壓的晶閘管控制電容器技術實現,有源部分採用高頻pwm控制技術實現,成本低、可靠性高、可實現無功功率的無級調節、強力補償諧波電流和負序電流,降低線路損耗。As miniaturization, reduction in products weight, high power have become the latest trend in electronic products development, traditional design methods and manufacturing technology fail to meet today ’ s demands
當前,各種電子產品均朝著體積小、重量輕及高功率的方向發展,電子產品的性能受溫度和溫度分佈的影響很大,傳統冷卻器的設計極限與製作技術已無法滿足要求。Gyrotron has the superiorities, high peak power and high average power. so gyrotron is vastly applied in many areas, such as plasma heating, controlled thermonuclear fusion ( ctf ), radar, communication, electron countermeasure
迴旋管具有在毫米、亞毫米波段其他器件無可比擬的高峰值功率、高平均功率的優越性,因此在等離子體加熱、受控熱核聚變、雷達、通信及電子對抗等方面都有著廣闊的應用前景。The spot feels, regardless field the deep degree feel with space to all have the felling of true. the room is more replying of the exportation power of the, empress class the effect is more relaxed. therefore, the soundproof design is more good more beneficial
而這類體積的高深寬也足以用器材重播幾可亂真的現場感,無論音場深闊度和空間感都有幻真的感覺。房間越靜,后級的輸出功率的應對效能越輕松。This paper explicitly describes the optical measurement of the electric parameters in the high - voltage electric power system, and an optic fiber large current sensor based on farady magnetooptic effect and an optic fiber high voltage sensor based on the linear transformation characteristic of led are developed from research on both theory and experiments. by combining the two sensors to form a synchronous system, the task of harmonic analysis, phase demodulation, power and wattless power computation is accomplished, which helps to monitor and control the electric power system
本文詳細論述了電力系統高壓電網電參量的光學測量的一種實現方法,從理論和實驗兩方面研究了基於farady磁光效應的光纖電流傳感器及基於led線性電光轉換特性的光纖電壓傳感器,並聯合兩種傳感器形成了電壓、電流的同步測量系統,實現了諧波分析、鑒相及有功、無功功率的計算,可對電能質量進行監控。Fiber gratings have several distinguished advantages, such as compare with fiber, low loss and high responsibility. as sensing element, they encode the sensing information in a wavelength form, which are their distinguished advantages over other transducers. that not only make the sensing information does not depend on loss of the system or fluctuation of then source power but also decrease the cost of sensing system and realize multipoint and distributed sensing
光纖光柵與光纖之間存在天然的兼容性,它不僅具有易與光纖連接、低損耗、光譜特性好、可靠性高等特點,而且作為傳感元件,它具有其它傳感器無可比擬的優點,即感應的信息用波長編碼,而波長這個絕對參量不受光源功率的波動、連接或耦合損耗的影響。With the development of the industry, the need of the high performance material urge people to open up the big power equipment, the cylindrical cavity could not suffice the need
隨著工業的發展,對高性能材料的需求促使人們開發大功率的反應設備,傳統的圓柱腔已無法滿足需要。The simulation object list indicates that the active reactive power compensation can carry on the compensation of reactive power very well
模擬結果表明,有源無功功率補償器能很好地進行無功功率的補償。Measurements were made of system pressure, mass flow rate of steam, air, and cooling water, temperatures of condensing flow and cooling flow, and the water level of boiler. the major phenomena observed in the present experiment are similar to those by other investigators. the mass flow rate of steam, the system pressure and air content are the most important factors affecting steam condensation
實驗結果表明,維持二次側冷卻水流量不變,無論對于純凈蒸汽還是含有空氣的蒸汽冷凝,隨著蒸汽發生器加熱功率的增大(即蒸汽流量增大) ,有效冷凝段長度將加長;當蒸汽中含有少量空氣,有效冷凝段長度也會明顯加長;提高系統壓力,有效冷凝段長度將縮短。Today ' s trend toward sending lower - power signals over shorter ranges has occurred previously in wireless communications ? during the early days of radio telephony
在較短距離傳送較低功率的訊號已經成為今天的趨勢,但這種傾向早已見諸先前的無線通訊,也就是早期的無線電話。As an advanced power generation and adjusting speed technology of a. c motor, a. c excited machines ( acem ) can be applied in power generation using a variable - speed constant - frequency scheme to produce electricity, in a pumped - storage hydraulic power plants, and in high rate variable speed drive fields
交流勵磁技術是一種先進的交流電機發電及調速技術,可用於變速恆頻發電、抽水蓄能電站和大容量調速場合,能實現電機有功功率、無功功率的獨立調節和功率因數控制。分享友人