inverse power method 中文意思是什麼
inverse power method
解釋
反冪法, 逆冪法-
This paper combines the critical rainfall in the typical areas of yunnan province, and carries on the analysis to the critical rainfall situation, and carries on a research to the variety regulation of the critical rainfall of the mountain flood disasters in yunnan province by the application of spacial variogram theory, and the kringing of spacial gridding methods, the inverse distance to a power method, the radial basis function method, and then draws up each isoline maps
採用空間變異理論，應用克里金空間插值分析法、反距離加權插值法、徑向基函數插值法對雲南省山洪災害典型區的臨界雨量的情況進行對比分析，對其變化規律進行研究，並繪制相應等值線圖。 -
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。 -
Abstract : an improved inverse power method for calculating the eigenpair of a structure is presented based on the combination of the inverse power method and topological variation method of structures
文摘:將矢量逆迭代法與結構拓撲變化法結合起來，給出了一個用於求解結構特徵值及特徵矢量的改進的矢量逆迭代法。 -
The simulation results show that : neural ath - order inverse system control method have good adaptability to the running point and network structure ' s transformation, improve the stability of power system greatly and have good control performance when it was applied to the stability control of power system
單機和多機系統的模擬結果表明，神經網路階逆系統控制方法應用於電力系統控制，對系統運行點和網路結構的變化有良好的適應性，可顯著改善系統暫態過程的動態響應，具有較好的控制效果。 -
In this paper the method of inverse system and ath - order inverse system are introduced, then it studies the application of the method of inverse system and supervised neural controller in the excitation controlling of one machine infinite bus power system. after introducing the method of ann a th - order inverse system it studies its application in the excitation controlling of one machine system. at last as t the emphasis of this paper, combining the theory of multi - machine decentralized and coordinated control, the method of ann ath - order inverse system is studied how to be used in the excitation control of multi - machine power system
本文首先介紹了逆系統和階積分逆系統理論，接著研究了逆系統方法和神經網路監督學習控制理論在單機?無窮大系統勵磁控制的綜合應用；然後在介紹了神經網路階逆系統控制理論后，研究了神經網路逆系統方法在單機?無窮大系統勵磁控制中的應用；最後作為本文研究重點，首次將神經網路逆系統方法應用於多機電力系統穩定控制，研究了神經網路逆系統方法在多機系統勵磁控制中的應用情況，並結合多機系統最優分散協調控制理論，設計出基於神經網路逆系統方法的多機電力系統分散協調勵磁控制器，進行了控制系統模擬和效果分析。 -
Furthermore, through the analysis of the actuality and characteristic of energy consumption in electric power plants, energy consumption indexes of energy saving management in electric power plants is induced with nonlinear recursive mathematical method, and inverse exponent nonlinear recursive forecast model, a forecast model of energy saving target of electric power plants, is set up
本文從能源危機入手，闡述了節能降耗對世界經濟持續發展的重要性，通過對電廠能源消耗現狀和特點的分析，利用非線性回歸的數學方法對電廠節能管理的能耗指標進行歸納，建立了電廠節能目標的預測模型即倒指數非線性回歸預測模型。
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