整流網 的英文怎麼說
中文拼音 [zhěngliúwǎng]
整流網
英文
damping screen-
A design adding a dc chopper after the triphase rectification was given to reduce the peak of the pulse of voltage, aiming at the characteristics that the magnitude of the rated voltage of permanent magnet synchronous motor ( pmsm ) is far below that of the power supply, also the electric parameters of the devices were given
針對專用永磁同步電機額定電壓大大低於電網電壓這一特點,為降低電機上承受的峰值脈沖電壓,設計了在三相整流之後增加一級直流斬波器並給出了相應的電氣參數。With the study of oil production, storage and transfer scheduling, whole logistics from crude oil input to crude oil refining, then to product output, ultimately to oil distribution is reappeared in this dissertation, which makes a good basis for the realization of scheduling system and provides a good decision for management and contro
通過對油品生產與儲運過程調度問題進行研究,再現了從原油入廠,到原油加工,到產品出廠,最後到產品流通的完整物流網路,為調度系統的工程化實現打下了良好的基礎,為企業的生產經營和生產控制提供決策依據。In the second section of chapter 2, the fact that the essential interest rates of all nodes differ from each other is discussed, a non - homogeneous differential equation model of interest rate - amount of circulating fund is established, and it is proved that the sum of the weighted interest rates of each node in the financial network still remains a constant and that the difference of the instant interest rates between two nodes will finally approach the difference between their basic interest rates. in the third section of chapter 2, the differential equation model of interest rate - amount of circulating fund in an open system is studied, the laws of changes of interest rate are taken into account when fund is injected into or withdrawn from the node or when fund is injected into the network or withdrawn from the network, and the stability of equilibrium solution is proved based upon lyapunov stability theory. in the last, the equation model of interest rate - amount of circulating fund in the financial network with time delay is studied, and a necessary and sufficient condition for the existence of periodic solution is obtained to the interest rate - amount of circulating fund equation with delay
本文第二章首先建立了封閉系統的利率?流通量微分方程模型,證明了各結點利率加權和為常數即金融市場利率均衡原理,以及各結點利率極限為整個網路平均利率;其次在各結點基本利率不相同的情況下,建立了非齊次利率?流通量微分方程模型,證明了金融網路各結點利率加權和仍是一個常數,並證明了各結點兩兩之間的即時利率之差最終將穩定地趨于其基本利率差;此外,還研究了開放金融網路利率?流通量方程模型,考慮了結點自身追加資金和提走資金的情形以及網路外部注入資金和向外部轉移資金情形下的利率變化規律,用lyapunov穩定性理論證明了模型均衡解的穩定性;最後,還研究了具有時滯的金融網路利率?流通量方程模型,並給出了具有時滯金融網路的利率流通量方程具有周期解的充要條件。This paper introduces a power controlling system for electrosurgical generator based on thyristor, and proposes a power compensating method to maintain the output power invariable when the ac voltage fluctuates
介紹了基於可控硅整流電路的高頻電刀控制系統,並針對該類型電刀的輸出功率隨電網電壓波動而發生漂移的問題,採用了一種功率補償的方法,實現輸出功率在不同的電網電壓的波動下保持恆定。This paper introduces a power controlling system for electrosurgical generator baaed on thyristor, and proposes a power compensating method to maintain the output power invariable when the ac voltage fluctuates
摘要介紹了基於可控硅整流電路的高頻電刀控制系統,並針對該類型電刀的輸出功率隨電網電壓波動而發生漂移的問題,採用了一種功率補償的方法,實現輸出功率在不同的電網電壓的波動下保持恆定。This system consists of a full bridge pwm ( pulse width modulation ) regenerative rectifier or so - called vsc ( voltage source converter ) that connected to pcc ( point of common connection ) at the power utility grid through a passive interface circuitry
這種系統包括一個pwm全橋可逆整流器或者所謂的電壓源變換器,通過無源電路介面與電網的pcc點(公共連接點)相連。In the early periods, the objective of the river management is to constraint the braid river in a main channel by using construction of dikes. by control the flood could prevent from river banks flowing away
早期河川治理,以築堤御洪為主,其主要目標在於整理網狀亂流,束范于河槽中,防止沿岸土地浸淹崩坍及流失,達到防災減災的目的。For instance, a new property of network traffic ( self - similarity ) has been observed in diverse networking contexts. some old protocols, policies and evaluate methods which are based on previous markov network model are not suitable for this self - similar traffic. and when tcp data share bandwidth with udp data that is popular for multimedia applications over the internet, it also causes fairness problem
多媒體業務流會給整個網路的性能帶來極大的影響,如:多媒體業務導致網路流自相似現象加重,使網路的原有的markov模型基礎上的協議、策略,及其評價方法不夠準確,導致丟失率上升,網路性能下降;多媒體業務中使用的大量udp包與普通數據流tcp包共存時對公平性的影響等等。The power supply & transmit electricity system in guangyuan fulfilled the role of supplying main power to guangyuan city. while the harmonic occurred is very serious and it has not been restrainted. the main harmonic sources are two loads : aluminium electrolysed load and electrized locomotive load
廣元電力網主要擔負著廣元市、縣工農業及人民日常生活用電任務,但其諧波極其嚴重,並且沒有進行治理,其主要諧波源負荷為電解鋁整流負荷和電氣機車牽引負荷。Aiming at weakness of the former excitation system of ball - mill machine synchronous motor in mill run factory, succeeds in digitization reconstruction for the excitation system by applying advanced siemens 6ra70 rectifier, s7 - 300 plc and profibus - dp fieldbus technique, constructs automation network of the workshop, and acquires better technique and economic benefit
摘要針對選礦廠球磨機同步電機原勵磁系統的缺點,運用西門子6ra70整流器、 s7 ~ 300plc及profibus - dp現場總線技術對勵磁系統進行了數字化改造,構建了車間自動化網路,取得了良好的技術和經濟效益。Congestion control is essential for transporting streaming video, it is crucial for the robustness and stability of the internet
擁塞控制在視頻的流式傳輸中具有非常重要的地位,它對整個網路的健壯性和穩定性起著至關重要的作用。The paper analyzes the composition of siemens shaft - generator with rectifier and thyristor inverter and its working principle, and introduces the independent power supply, the operation of the system, automatic adjustment, and the function of synchronous condenser, contributing to upgrade the understanding level and cognitive ability of shipping mechatronics managerial staff
摘要文章分析了西門子帶整流逆變中間環節的軸帶發電系統的組成及工作原理,介紹了單獨向電網供電方式、系統的運行、自動調節以及調相機在系統中的作用,有助於提高船舶機電管理人員對這一系統的理解和認識能力。The power supply system is 380volts, 3 - phase, which is transformed to 485volts, 3 - phase and then rectified, by solid state silicon rectifier modules, to 600 volts dc, the whole system having a capacity of 500kw. this power is connected to the two overhead power lines to supply the needs of the trolleybuses anywhere along the system
架空電纜網路採用三百八十伏特三相之供電系統經升壓至四百八十五伏特,再經矽質整流器調整至直流六百伏特,整個系統之電功率為五百仟瓦。電源接駁到兩條架空電纜供無軌電車使用。In the paper it makes focal points of the zig - zag transformer " influences on the harmonics of line side and pulse shifting control influence on the harmonic of motor side. the theoretical computation and computer simulation waveforms are presented
重點分析了變壓器曲折接法和移相多重化整流對網側諧波的影響及移相pwm控制方式對減少輸出側諧波的作用,並給出理論計算結果和計算機模擬波形。The principle of ac - dc - ac locomotive is that transformer transforms the high single - phase ac voltage from contact system to lower ac voltage first, then rectifier transforms this ac voltage to steady dc voltage, finally converter transforms this dc voltage to three - phase vfvv ac voltage as the voltage source for asynchronous machine
交?直?交型電力機車系統的原理是:先將從接觸網獲得的單相交流高電壓經變壓器降壓后,再經整流器變換為平穩的直流電壓,直流電壓經逆變器變換為三相交流電壓,供給機車輪對上的牽引電機。( 2 ) the major circuit has been established, composed of rectifier 、 buck - chopper 、 push - pull inverter and matching network, which realizes high - power supersonic ac output. to achieve maximal output power, the pulse frequency modulation ( pfm ) has been applied to auto - adjustment of output frequency, which corresponds to the load ' s resonant frequency
( 2 )建立了超聲電源主電路,其中包括:整流、直流斬波、推挽逆變器和匹配網路等部分,實現了大功率超聲頻交流電的輸出,輸出頻率的脈頻調制( pfm )和輸出功率的脈寬調制( pwm ) 。In order to clear up these causes, i proposes vendor centrally managed inventory mode and design operational steps to implement this mode, including business structure reorganizing and functional department integrating ; constituting strategic partnership with core vendor ; information system ' s building ; combining of the third part logistic and self - support logistic ; distribution network redesigning. finally, this article establishes a mathematic optimal model to find out the number and locations of inventory transferring centers
針對這些問題,論文提出了供應商集中管理庫存的模型,並且對神龍公司實行供應鏈管理庫存進行了模式設計,包括組織結構重組,職能部門集成;與核心分銷商建立戰略夥伴關系;信息系統建設;第三方物流與自營物流相結合的配送體系;整車物流網路的再設計。On the basis of the overall strategy of “ becoming one of the world top 500 companies ”, set by the headquarters of china united telecommunications corporations ltd. ( china unicom ), and urged by the new economic and market conditions, china unicom ( jilin ) implemented bpr in its operation, maintenance, and service ( oms ) system. with the continuous evolution of the bpr theory, bpr, tested by practice, has gradually shifted its focus from overall reengineering to optimization and improvement of business enterprises, reaching a more rational and more comprehensive stage with an increased operability and success rate. using “ the methodology of systematic redesign ”, a study on business process reengineering in the operation, maintenance and service system in china unicom ( jilin ) makes an analysis on the present process and, based on the present process, systematically creates a new process for oms system in china unicom ( jilin )
本文以目前企業界非常關注的熱點:業務流程再造( businessprocessreengineering ,簡稱bpr )在電信運營企業的運用為課題進行深入研究,在分析大型電信運營商運維體系所面臨的挑戰、運維理念變更的重要性和運維組織管理需要改革調整的必要性基礎上,分析研究吉林聯通運維服務體系管理流程的模式以及所存在的弊端,運用業務流程再造( bpr )理論對吉林聯通運維體研究,文中以bpr理論中的『系統化改造法』為指導思想, 『業務流程再造7階段模型』為理論模型對吉林聯通運維服務管理體系進行流程再造,整合網路管理、資源管理、作業調度系統之間的關系。The input of traditional ac - dc converter is diode - capacitance combined circuit. it ? input current wave presents pulse shape, and the power factor ( pf ) on ac line side is low
傳統的ac ? dc開關變換器輸入端是二極體整流-濾波電容組合電路,其輸入電流波形呈脈沖狀,交流網側功率因數很低。Go together with to send together to are excellent to turn a kind of to pursue to rationalize through the long - term development and quests of go together with and send form, its content lie in under the resources share principle the establishment business enterprise alliance. the business enterprise passes the communication and communicates, becoming the consensus gradually, in the mutual trust with each other the foundation of the benefit up, pass the integration of the level, perpendicularity, same profession, different industry, with the strategic alliance, be in conjunction with the combination, logistics together turn etc. the resources that the cooperation method share is limited, the integration that thus attain the logistics to go together with to
本文以吉林省交通科技發展計劃項目「道路運輸業共同配送發展模式及關鍵技術研究」為依託,從汽車物流行業的swot分析入手,對汽車物流共同配送從概念、優勢、模式、組織方式等方面進行分析,並採用博弈論中的合作對策理論解決費用分攤機制問題,最後通過對一汽大眾入廠物流的實例分析,充分說明共同配送是一種提高管理水平,調動供需雙方積極性,貫通整個物流網路,實現資源有效整合的配送模式。吉林省汽車物流實行共同配送對于降低汽車產業生產流通成本具有重要的現實意義。分享友人