電網換流 的英文怎麼說

中文拼音 [diànwǎnghuànliú]
電網換流 英文
line commutation
  • 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...
  • 網 : Ⅰ名詞1 （捕魚捉鳥的器具） net 2 （像網的東西） thing which looks like a net 3 （像網一樣的組織或...
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 電網 : electrified wire netting; live wire entanglement; power grid電網電源 electric network source; 電...
  1. Integrating the power flow program with the tools matlab simulates the transient response of the distribution networks with the direct combination wind generator under disturbances, it provides the credible rationale to the research on stability and maximal penetrable power

    本文結合配電網潮流程序，利用matlab作為模擬工具，模擬包含直接並網風能轉換系統的配電網路在受到擾動情況下的暫態響應，對含有風電場的電力系統穩定性研究及風電場極限穿透功率的研究，提供了可靠的理論根據，有重要的現實意義。
  2. The core products include telecom power systems, board mounted power supplies, custom power supplies, ups, precision air conditionings, outdoor shelter solutions, automatic transfer systems, network power protection products, vrla batteries, lv & precision distribution cabinets, centralized power and environment monitoring systems, dc power systems and ac motor drive inverters used in electric utility power systems

    艾默生網路能源產品涉及通信電源、印刷板板裝電源、客戶定製電源、 ups 、機房專用精密空調、戶外一體化通信機櫃、自動切換開關、動力網路保護產品、蓄電池、低壓配電和精密配電櫃、動力設備及環境監控系統、電力操作電源、交流變頻調速器等領域。
  3. The three - phase distribution flow method on combining the back / forward sweep algorithm and circuit calculation is studied. as a result, the transform model from the apparent power of low voltage side to the current of high voltage side is built

    研究了電路計算與配電網潮流計算的前推回代法相結合的（基於電路分析的）三相潮流計算方法，在該演算法的基礎上建立了配變低壓側的功率到高壓側的電流的轉換模型。
  4. 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。
  5. Model gdl1, 2 compact low voltage complete switchgear is suitable for use in ac 50 - 60hz three - phase five - wire election net as power, lighting, electic energy changeover, protection and control in genegration, transmission and distribution systems. it also can be used in warship, oil prospecting and nuclear power stration

    2低壓成套開關設備適用於交流50 - 60hz ，三相互線制電網，用於發電、輸電、配電系統中最為動力、照明、電能轉換、保護控制之用，還可用於艦船及海上石油勘探和核電站。
  6. This thesis studys several distribution network reconfiguration algorithms detailedly, mostly concluding branch - exchange method, optimal flow pattern method, recursive fictitious flow method and hybrid flow pattern method. it analyzes theoretical basis of all algorithms, modified process and basic steps at length. besides it simptylniroduce other distribution reconfiguration algorithms and its development, compares the characters of all algorithms and puts forward a simplied recursive fictitious flow method, then according to a example proves the effect of some algorithms

    本論文詳細研究了多種配電網路重構演算法，主要包括支路交換法、最優流模式法、遞歸虛擬流法和混合流模式法，詳細分析了各種演算法的理論依據、改進過程和基本步驟，簡述了其它相關重構演算法的思路及其發展，比較了各種演算法的各類特性，提出了一種簡化遞歸虛擬流演算法，並通過實例證明了幾種重構演算法的有效性。
  7. Also a prototype for the boost two - level converter is built. the experimental results show that the boost tl converter has lower input current harmonics than the boost two - level converter, and it can satisfy the limits specified in rtca do - 160d. so the boost tl converter has the potential to apply in the future variable frequency ac airborne system ranged from 360hz to 800hz

    並完成一臺boostpfc變換器進行實驗對比，實驗結果表明，相比于boostpfc變換器， boosttlpfc變換器能有效地減小電流諧波使其滿足相應的諧波標準rtcado - 160d ，所以它適合於即將採用360hz - 800hz變頻交流供電體制的航空電網。
  8. Based on the research project of my tutor the application of a new unified power flow controller in extra high voltage transmission lines operated in two phases, the existing principle of upfc and methods of the transmission lines operated in two phases, put the new upfc into hai - jin - jia 330kv extra high voltage transmission lines based on perfecting the framework of main net located in west of river in gansu which can improve the quality of electric power and ensure power transmission or transfer between the main net of gansu and the area of west of river

    本文綜合分析了海-金-嘉330kv超高壓輸電線路在正常運行和故障情況下的諸多問題，在upfc的現有成果和非全相運行現有方案的基礎上，結合導師的研究課題? ?新型統一潮流控制器在超高壓輸電線路非全相運行中的應用。提出在完善甘肅河西主網架結構的基礎上，將新型的upfc應用於海-金-嘉330kv超高壓輸電線路，可以較好的解決電壓質量問題，確保甘肅主網與河西地區電網的功率傳輸、轉換。
  9. 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。
  10. 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。
  11. Ringing and tone for telephone automatic switching network

    電話自動交換網鈴流和信號音
  12. Abstract : in this article an optimization method is applied to de sign open - type distribution networks. graph theory technology is used. its mathem at ical model considers both the investment of constructing lines and the cost of o peration. the main idea is getting the structure of tree network that meets with the technical constraint conditions and at the same time make the annual cost mi nimum. the examples of simulation show that this method is fast and effective

    文摘:將圖論優化技術應用於配電網路的優化設計，提出了一種適合於開式配電網路規劃的優化方法.所建的數學模型綜合考慮了待建線路的投資和運行費用.求解方法是以圖論中的最短路徑問題為基礎，配合以開式網路潮流演算法，並通過可行路徑的合理變換，得出滿足技術約束條件且使年計算費用取極小值的樹狀網路結構
  13. To put into operation a large amount of non - linear load, make in harmony wave of rural power grids serious becoming in pollution, pass to rural local electric wire netting main in harmony analysis of wave source, put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal, increase the pulse of the current change device and install light specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony

    摘要大量非線性負荷的投運，使農村電網的諧波污染日趨嚴重，通過對農村地方電網主要諧波源的分析，最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數，以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式，以進行諧波治理。
  14. These harmonic current will inflow in the ac power system through the converter transformers and effect the normal operation of ac / dc system without any limitation

    這些諧波電流通過換流變壓器網側注入交流系統，如果不加以控制，會影響交、直流系統的正常運行。
  15. The test methods for the technical specifications of ringing and tone for automatic telephone switching network

    電話自動交換網鈴流和信號音技術指標測試方法
  16. Our factory is according to the needs of customer, still the production is charged and against becomes an organic whole machine, and can being charged and can be against becoming, and netting the electricity at ordinary times often can be charged to the accumulator, the net electricity has stopped afterwards use the accumulator with against becoming, makes the 12 volts direct currents change into the 220 volts alternating currents, for person production and the life brought the convenience

    我廠根據客戶的需要，還生產充電、逆變一體機，既可以充電、也可以逆變，平時網電正常時可以對電瓶充電，網電停了之後可以利用電瓶和逆變，使12伏直流電轉換成220伏交流電，為人門的生產和生活帶來了方便。
  17. First, variable speed constant frequency wind energy convertion theory is described in this paper, then presents a review on the development of wind turbines control and the main types of generator and static converters used to interface variable speed wind turbines to the electric grid. then discuss main circuit constructure and advantage of direct drive wind energy conversion system and introduce pitch - control method for wind power traction and electric power stability. simply aerodynamic characteristic of the turbine is analysised and permanent magnet synchnonous generator math model is established. to convert the variable frequency electricity into utility grid, back to back four - quadrant pwm - vsi is used and three typies of control strategy is presented to capture the maximum wind energy and transmit energy. then simulation is implemented to test the control strategy. in the following chapter a simple ac - dc - ac converter with a dc - dc boosting chopper is proposed to transmit the wind energy into electricity energy and two control strategy is presented

    建立了永磁電機和變流器的數學模型，針對雙pwm變頻器的特點提出了三種控制策略對變流器進行控制，通過變流器交-直-交的變換，將發電機發出的變頻變幅值交流電轉化為可用的恆定頻率的交流電，通過pwm調治能使其輸出功率因數為一，並且該控制系統功率因數為可調，能在特殊情況下同電網交換一定的無功功率，並通過對變流器的控制實現了最大風能俘獲的功能。最後採用matlab / simulink進行了模擬，取得了良好的模擬效果。在風力發電系統中，採用先進的最大功率俘獲演算法，能有效的從風中獲得最大的能量。
  18. This paper put forward the realization method of a kind of multi - function general use inverter system which added other functions based on the independent sine wave inverter, it not only can be used as independent inverter power supply but can be used as an in - support mode ups which realize synchronous with the phase of power grid voltage and realize to switch with power grid mutually, it also can realize three phase ac output by the combination of three synchronous inverters, experiment proved it in this way has a stronger ability of resisting three phase unbalance load

    本文提出了一種基於獨立正弦波逆變器的功能之上復合其他功能而成的多功能通用逆變電源系統的實現方法，此系統不僅可以作為獨立逆變電源使用，還可以與電網電壓的相位同步，作為后備式正弦波ups使用，在逆變電源和電網的相互切換時能做到對負載無影響，同時還可以由三臺逆變器進行組合自同步實現三相對稱交流輸出，實驗證明這種方式具有較強的抗三相不平衡負載的能力。
  19. First, because pipelines are so complex that controlled object is high order, delay, coupling, nolinear and time - varing, it is difficult to realize closed loop control for it using valid mathematic model. to resolve this problem, the paper presents a fuzzy - pid control algorithm with self - adjusting regulation factor. second, if a moving motor supplied by inverter power is switched to be supplied by power supply, the impact of overload - voltage and overload - current appears

    主要針對中、大容量供水系統中，由於供水管網鋪設復雜、彎管多、控制對象具有高階、滯后、耦合、非線性及參數時變的特點，難以利用有效的解析式數學模型進行閉環控制，以及多臺水泵並聯運行時，水泵電機由變頻電源供電向工頻電源供電切換過程中產生的過電壓過電流沖擊這兩個難題，提出了可調整因子fuzzy - pid控制演算法及利用鎖相環控制實現水泵電機由變頻電源向工頻電源的同頻同相平滑切換。
  20. In order to improve the performance of the ac adjustable speed system and reduce the pollution to power network, a compound control strategy that combines matrix converter ( mc ) with direct torque control ( dtc ) is proposed

    摘要為提高交流調速系統的性能，並且減小對電網的污染，提出了一種將矩陣式變換器與直接轉矩控制相結合的組合控制策略。
分享友人
分享到 Line

分享到臉書