暫態過電壓 的英文怎麼說

中文拼音 [zhàntàiguòdiànyā]
暫態過電壓 英文
switching transients
  • 暫 : Ⅰ形容詞（時間短） short; momentary Ⅱ副詞（暫時） temporarily; for the moment; for the time being
  • 態 : 名詞1. （形狀; 狀態） form; condition; appearance 2. [物理學] （物質結構的狀態或階段） state 3. [語言學] （一種語法范疇） voice
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 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...
  • 壓 : 壓構詞成分。
  • 電壓 : voltage; electric tension; electric voltage
  1. Discusion about cauterization of the thermal equipment in power plant

    裝置中隔離開關操作會產生快速暫態過電壓
  2. Ln power system full dynandc simulation, the electric - mechanical transient processes of dynamic elements of power system should be simulated in detail, and the detailed dynandc models of mid - term and long - term processes are necessary based on the research and analysis for the ndd - term and long - term models, the dynandc models, such as thermal power plant, hydraulic power plant, nuclear power plant and the automatic generation control ( agc ), which are necessary to power syst

    電力系統全過程動態模擬除了需要詳細模擬電力系統動態元件的機電暫態過程外，還要有詳細的中長期過程的模型。本文在綜合調查和分析的基礎上，研究了電力系統全過程動態模擬所需要的火電廠動力系統的數學模型、水電廠動態模型、壓水堆核電站模型以及自動發電控制（ agc ）模型及其演算法，並在電力系統全過程動態模擬軟體中得到了實現。
  3. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  4. Power quality temporary and transient overvoltages

    電能質量暫時過電壓和瞬態過電壓
  5. Along with the development of power system, more and more generators and ehv transmission systems are put into operation. there come many new situations, such as the lengthening transmission distance, the heavier load, the increasing transient elements during the transient process. these new conditions influence the correct working of relay protections

    隨著電力系統的不斷發展，大容量發電機組和超高壓輸電系統的相繼投入運行，系統中出現了許多新的情況，如輸電距離增大、負荷加重、故障暫態過程中的暫態分量大大增加、持續時間變長等，這些情況對目前常用的各種繼電保護方法的正確動作會產生許多不利的影響，甚至不能正常運行。
  6. Lead the team to do the research on electro - magnetic transient overvoltage calculation and insulation coordination of power system, lightning overvoltage calculation of substations and transmission lines, protection, operation and test of arresters, overvoltage limiter and other lightning protection equipment

    帶領團隊從事電力系統電磁暫態過電壓計算及系統絕緣配合研究，變電站和輸電線路雷電過電壓計算及防護技術研究，避雷器及過電壓限制器等防雷保護設備的運行技術和試驗技術研究等。
  7. Because there is direct relation ship with fault currents and transient and dynamic voltages, in theory or practice, it is so complicated that the selection of generator neutral grounding model will affect or determine the generator protection scheme

    由於暫態過電壓、接地故障電流等都直接與發電機接地方式有關，同時還影響或決定著發電機的保護形式，所以接地方式的選擇在理論和實踐上都是一個復雜的問題。
  8. In these mathematic models, the essential vedables are propulsion motor ' s input voltage, input currefit and outpllt rotate rate and output torque. with these variables, the transient process of torpedo ' s electrical counterrotating propulsion system is studied both in quality and in quantity by computing its mathematic models

    在這些數學模型中，以推進電機的輸入電壓、輸入電流、輸出轉矩和輸出轉速等為基本分析變量，對魚雷電動力推進系統的暫態過程進行定性定量的分析。
  9. It analyses the working principle of the novel reactive power compensator, the relationship of currents in stable states, algorithm of filtering capacity and transient process

    本文分析了這種反饋式無功補償方案的工作原理，穩態下各電流之間的關系，變壓器變比的確定方法，濾波能力和暫態過程。
  10. ( 3 ) the law and characteristic of electromagnetic transient process for the switching overvoltage in the electric network of power stations have been studied by analyzing the electromagnetic transient process of switching overvoltage in power station and specially approaching the surge overvoltage transferred from the switchgear station through power transformers

    （ 3 ）通過分析廠站操作過電壓的電磁暫態過程及特性，特別是對超高壓開關站中的操作過電壓通過升壓電力變壓器傳遞的傳遞過電壓進行分析研究，研究了廠站電氣網路中過電壓的電磁暫態變化規律及特性。
  11. Therefore, the main contents and the creative results of this paper are described as follows : ( 1 ) the on - line safety forecast theory for switching overvoltage of large power stations based on the field - circuit analysis is presented by analyzing the electromagnetic transient for electric network of large power stations

    針對該研究課題，本文的主要內容及創新性成果如下： （ 1 ）通過對大型電站電氣網路電磁暫態過程的分析研究，提出了一種基於場路綜合分析的廠站操作過電壓在線安全預測理論。
  12. In this thesis we use electromagnetic transient program ( emtp ) to simulate and study those two kinds of overvoltage ; and research how to use moa and rc devices to reduce them basing on multi - exponential moa model and principle of rc device. at the same time, based on l - r damping principle, researches are made on the feasibility of restricting overvoltage by l - r device. thus methods of ensuring the parameters of these devices are concluded

    本文利用電磁暫態計算程序（ emtp ）對上述兩種過電壓進行了模擬計算研究；同時，基於moa多指數模型和rc裝置原理研究了如何使用moa和rc裝置來對過電壓進行限制；基於l - r阻尼原理探討了使用l - r裝置限制過電壓的可行性；並得出了以上保護裝置的參數確定方法。
  13. Based on the investigation of analysis methods for the overvoltage striking on rotating electric machines and its research status at home and abroad, the safety forecast theory and the analysis method for the switching overvoltage of large power stations are firstly presented based on the field - circuit analysis, and the transient field distribution and the insulation condition in the stator winding insulator stricken by the switching overvoltage in large power stations are studied and analyzed on line

    本文在分析和總結國內外關于旋轉電機過電壓分析方法及其研究現狀的基礎上，首次提出了基於場路結合的廠站操作過電壓安全預測理論和分析方法。本文研究了大型電站中的操作過電壓沖擊波在發電機定子繞組絕緣介質中暫態電場的實時分佈狀態，在線分析發電機的絕緣工作狀況，搜索發電機內部可能突發絕緣事故的區域，預測發電機內部可能發生絕緣事故的故障點，並重點研究了大型發電機絕緣安全在線預測分析方法和建立了大型發電機絕緣安全評估模型。
  14. The transient state of torpedo electrical drive system, caused by torpedo ' s steding, shifting, and the fluctuation of battery voltage, and the change of the resistance in voyage, will influence efltire attitude and stability of the torpedo immediately, as well as every parts of electrical propulsion system. therefore, it is necessary to theoretically analyze the transient state of torpedo electrical power propulsion system

    魚雷電動力推進系統在魚雷啟動、變速及因電池電壓的波動和在魚雷航行阻力變化時而產生的暫態過程都將直接對整個魚雷的姿態和穩定性產生影響，同時對電動力推進系統本身各個組件也將產生不同影響，因此有必要對魚雷電動力推進系統的暫態過程進行一些理論分析。
  15. Brings out some new and different viewpoint on issues of transient and dynamic voltages for generator single phase fault as well as third harmonic fault protection.

    在暫態過電壓和三次諧波保護等問題上，提出了一些不同觀點。
  16. One is constant impedance modeling, the other is complicated load modeling. based on the time domain simulation, the sensitivity of stability margin with respect to node active and reactive power for the system with complicated load modeling is derived

    結合時域模擬，本文提出了具有綜合負荷模擬的暫態過程中發電機加速面積、減速面積、減速功率（穩定裕度）對網路節點有功、無功及變壓器變比的靈敏度分析方法。
  17. The fast development of power system has made it more and more imperative to measure transient parameters, such as over voltage test, trial engagement test of switches, reactors and transformers, harmonics elimination test of arc elimination coils and trial operation of high voltage transmission lines

    隨著電力系統的飛速發展，對于暫態參數的測量需求越來越迫切，例如：過電壓試驗；開關、電抗器、變壓器投切試驗、消弧線圈消諧試驗、高壓線路的試投等。
  18. By analyzing load voltage characteristics, this thesis does some simulations of frequency dynamics of power system with or without voltage controllor and provides referenced idea of how to harmonize voltage and frequency emergency control when accident happen

    論文在分析系統負荷的電壓特性的基礎上，對有無電壓控制器的系統動態頻率特性進行模擬，並為在發生事故的暫態過程中，電壓、頻率的緊急控制如何協調提出參考意見。
  19. On the base of some research results, the interior and exterior model of gis are set up in this paper, and very fast transient overvoltage ( vfto ) can be calculated via the software that is called emtp - atp

    本文立足已有一些研究成果，建立了一個實際gis的內部和外部的模型，並藉助emtp - atp軟體模擬計算了由隔離開關操作引起的特快速暫態過電壓（ vfto ） 。
  20. According to calculation, synchronous closing can reduce the value of over - current and over - voltage in the closing transient process. the closing of capacitor is taken as an example to analyze movement process of synchronous closing. it also analyzes the impact of pre - strike characteristic, environmental temperature and control voltage on synchronous closing

    通過計算分析了同步關合技術對合閘暫態過程中過電流和過電壓的抑制作用，並以電容器的同步關合為例，分析了同步關合的動作過程及預擊穿特性、環境溫度，控制電壓等外界因素對同步關合技術的影響。
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