transient disturbance 中文意思是什麼

transient disturbance 解釋
暫時干擾
  • transient : adj 短暫的，一時的；過渡的；匆匆而過的；易逝的；虛幻的，無常的 （opp lasting permanent）; 【物理...
  • disturbance : n. 1. 動亂，變亂，騷亂。2. 煩悶；（心情）紛亂；（身心）失調。3. 【無線電】干擾；【氣象學】擾動；【地質學；地理學】（地殼的）局部運動。4. 【法律】侵犯（權利），妨害（治安）。
  1. 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。
  2. Electrical relays - part 22 - 4 : electrical disturbance tests for measuring relays and protection equipment ; electrical fast transient burst immunity test

    電氣繼電器.第22 - 4部分:量度繼電器和保護裝置的電氣騷擾試驗.快速瞬變猝發騷擾試驗
  3. Electrical relays - part 22 - 4 : electrical disturbance tests for measuring relays and protection equipment - electrical fast transient burst immunity test

    繼電器.第22 - 4部分:測量繼電器和保護裝置的電氣干擾試驗.電氣快速瞬變猝發抗擾性試驗
  4. It first classifies power quality disturbancesinto stable one and transient one by wavelet ’ s multi - resolution analysis, and thencompresses the stable and transient disturbance signals by fourier transform andorthogonal wavelet packet transform, respectively

    在此基礎上，提出一種針對復雜電氣信號的基於傅立葉變換和小波包變換的綜合電能質量擾動信號數據壓縮新方法。
  5. Electrical relays - electrical disturbance tests for measuring relays and protection equipment - electrical fast transient burst immunity test

    電氣繼電器.測量繼電器和保護設備的電氣干擾試驗.電器快速瞬間短促消隱脈沖試驗
  6. Electrical relays. part 22 : electrical disturtance tests for measuring relays and protection equipment. section 4 : fast transient disturbance test

    電氣繼電器第22部分:量度繼電器和保護裝置的電氣干擾試驗第4篇:快速瞬變干擾試驗
  7. In order to resolve the question, in the thesis a simulation arithmetic of hydro - electrical system is put up. the equations of hydro - electrical system are divided to two parts, one of which consists of the differential equations of conduit system, hydro turbine and generator ' s rotator and is solved by characteristic equation arithmetic, the other of which consists of the differential equations of generator, magnetic system and grid and is solved by longge - kuta arithmetic or covert integrated arithmetic. through the alternative solving of the two parts, the simulation results of the large - disturbance transient could be abstained eventually

    為解決這一問題，本文提出了一種將水力系統和電力系統方程交替求解的水電系統聯合模擬演算法，即將包括輸水系統、水輪機以及機組轉子等部分的水力系統差分方程作為一部分，將包括同步發電機、勵磁系統以及電網等部分的電力系統微分方程或差分方程作為另一鄭州大學工學碩士論文部分，對前一部分採用特徵線法求解，對后一部分根據模型形式採用龍格一庫塔法或隱式積分法等演算法求解，這兩部分的求解過程交替進行，最終即可得到水電系統大擾動過程的模擬結果。
  8. Road vehicles. electrical disturbance by conduction and coupling. part 2 : commercial vehicles with nominal 24 v supply voltage. electrical transient conduction along supply lines and board network control lines

    道路車輛.連接和耦合產生的電干擾.第2部分:額定24伏供電電壓商用車輛.通過供電線和插件板網路控制線的電瞬變感應
  9. Road vehicles. electrical disturbance by conduction and coupling. part 3 : vehicles with nominal 12 v or 24 v supply voltage. electrical transient transmission by capacitive and inductive coupling via lines other than supply lines

    道路車輛.傳導和耦合引起的電擾.第3部分:公稱電源電壓為12 v或24 v的車輛.通過電容耦合和電感耦合經由非電源線線路的瞬間電傳輸
  10. Compared with digital integrator composed of reversible counter, the trapezoidal formula digital integrator is utilized in integrating element of phase - lock controller, it has advantages in simple realization, fast transient response, wide lock range, insensitivity to disturbance

    對鎖相控制的積分環節採用了梯形公式數字積分器，與可逆計數器構成的數字積分器相比，梯形公式數字積分器具有實現簡單、動態響應快、入鎖范圍大、抗擾動能力強等優點。
  11. In data communications, a transient disturbance to a data communication medium

    在數據通信中，對數據通信媒體的瞬時干擾。
  12. In general, it is considered to be a rather safe procedure, but adverse effects have been documented including transient visual disturbance, injection site pain, macular hemorrhage, low back pain and photosensitivity reaction. what are the precautions after the treatment

    整體來說，光動力療法是一項頗為安全的治療方法，但過去亦曾有出現副作用的報告，包括短暫的視力受擾注射位置疼痛黃斑出血腰背酸痛及怕光等。
  13. The surplus transient energy, ( ste ), produced during the fault period is used as the quantity index to evaluate the damage degree of generator stability. the effect of gahc to the generator stability was analyzed in single machine system and multi - machine system. the results of analysis show that ste could be reduced by the gahc, the ste decrease of controlled generator would be helpful to reduce the coupled disturbance transient energy of other generators in multi - machine system

    以發電機在故障期間積累的過剩暫態能量作為發電機穩定性受到危害程度的定量評價指標，在單機無窮大系統和多機系統中對gahc提高發電機穩定性的作用機理進行了理論分析，分析結果表明： gahc能夠加速被控機組過剩暫態能量的衰減，在多機系統中被控發電機過剩暫態能量的衰減將減少與之關聯的其它發電機受到的耦合暫態勢能的擾動量，也就說明在多機系統中gahc在提高本地機組穩定性的同時不會對其它發電機的穩定性產生危害作用。
  14. Both the guide vane opening and blade opening of a hydropower generating unit can be separately regulated during disturbance according to the optimal regulation laws thus obtained to optimize the transient process of water flow

    它可以使得在擾動下水輪發電機組的導葉與漿葉的位置按照各自的優化控制規律進行調整，從而使水力過渡過程達到優化。
  15. A model of an 110kv three - phase network is established by matlab / simulink spsfirstly, and the disturbance of harmonic in power system is simulated by a type - ss1electric locomotive in this model. secondly, kinds of short faults are analyzed, thestable and transient voltage waves are obtained. then, a de - noising method is presented, which is based on wavelet packettransform and has better resolution in time and frequency domain

    首先利用matlab / simulink電力系統工具箱中的模塊建立了一個110kv的三相輸電網路模擬模型，並以韶山1型電力機車為原型，實現對電網中主要諧波源的模擬;然後，對該輸電網路中多種短路故障進行了分析，並給出在穩態擾動和暫態擾動情況下的電壓擾動信號波形。
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