electric power system 中文意思是什麼
electric power system
解釋
電力系統-
Automatic compensation methods for coal mine electric power system
標準試驗裝置的研製 -
It can prevent tragedy of electric power system in gansu if the transmission lines can operated in two phases, so mis diesis has obvious valuable theoretically and practically
通過實現兩相長期運行，從而可預防甘肅電力系統的災難發生，因此，具有較高的理論價值和廣泛的應用價值。 -
Electric power system reform and hydropower development
電力體制改革與水電業發展 -
In the past thirty years, digital protection is very popular in the electric power system and come to replace the usual protective devices gradually, for its hardware ' s high integration, resisting interference and software ' s high intellection, easy operation and memory
在30年來的發展過程中，微機保護以其硬體的高集成度、抗干擾性和軟體的強大智能作用、強有力的運算能力和記憶功能，而形成一股取代各類常規保護不可阻擋的趨勢，成為電力系統的首選保護。 -
An n - order tracking differentiator and its application in prediction of reference phase angle of electric power system
微分器及其在電力系統相角預測中的應用 -
The economic thinking on the electric power system reformatory
從經濟學的角度漫談電力體制改革 -
Thyristor controlled technology of tide flow in electric power system
電力系統潮流的晶閘管控制 -
Study on the critical technology of information security protection for electric power system
電力系統信息安全防護關鍵技術的研究 -
The third generation of scada, based on the technology of distributing computer net and relation data base, could realize the large - scale internet connection, which is currently applied in data collection, surveillance control and processing control in the fields of electric power system, water supply system, petroleum and chemical industry etc. the fourth generation of scada would adopt the internet technology, object oriented technology, neural network as well as java technology as its main development tendency, aiming at enlarging the integration of scada and other systems, which could finally meet the needs of business management and integrated security economic circulation
現在的基於分散式計算機網路以及關系數據庫技術的能夠實現大范圍聯網的第三代scada系統被廣泛應用於電力系統、給水系統、石油、化工等領域的數據採集與監視控制以及過程式控制制等諸多領域。第四代scada系統的主要發展趨勢是採用internet技術、面向對象技術、神經網路技術以及java技術等技術，繼續擴大scada系統與其它系統的集成，綜合安全經濟運行以及商業化運營的需要。 -
In recent years, we gained remarkable achievement in national electric power system fitting bearing and the maintenance of bearing for power plant, and approval of access to internet of state electric power system and provincial electric power system, at the same time, we produce spherical roller bearing, shperical plain bearings., slewing rings, thrust tapered roller bearing, trench ball bearing
近年來，在國家電力系統配套軸承及電廠維修軸承供應方面取得了一定的成績，並取得國家電力系統及各省級電力系駐入網許可，同時公司生產的球面滾子軸承關節軸承回轉支撐軸承推力滾子軸承深溝球軸承及各種非標準軸承也廣泛應用於 -
The electric power system reform to have come into force, this reformation certainly will spark electric power business inner part occurrence graveness replaces
電力體制改革已開始實施，改革勢必引起電力企業內部發生重大變革。 -
The handing capacity of tian jin port has been raised to 95 million tons at the end of the " 95 plan " from the 46 million tons at the beginning of the " 95 plan ", which is not separated with the safe and reliable electric power system guarantee. it is that tian jin port pays attention to the development of the electric power system, the modernization of the power supply system of tian jin port is realized today
天津港電力系統現代化水平是隨著天津港的發展而不斷提高的，天津港的吞吐量從九五初4600萬噸到九五末9500萬噸，是和安全、可靠的電力保障分不開的，也正是天津港對港口電力發展的重視，才得以實現港區今天的供電系統的現代化。 -
With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly
四川電網的二灘水電站和500kv輸變電系統投入運行后，由於二灘水電站的大量電力遠距離輸送至負荷中心，迫使負荷中心的火電機組在豐水期大量停機，使負荷中心失去電壓支撐，大大降低了電網的電壓穩定水平；同時，因為四川電網中的無功補償裝置全為靜態無功補償電容器（或電抗器） ，這些設備只能在系統正常運行狀態下起到無功補償和電壓支撐的作用，而在電網出現事故時，不但不能起到電壓支撐作用，反而會促使電網電壓崩潰事故的發生。 -
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。 -
Whatever it is a fossil power plant or hydro power plant ; their control systems are complicated. the adjustment and management of electric power system need more powerful comprehensive management and optimized control function
無論是火力發電站或水力發電站，其控制系統都很復雜，電力系統的調度與管理則需要更強的綜合管理和優化控制功能。 -
Electric power system reform ' s system analysis
從世界電力工業改革看我國電力體制改革的發展 -
Talking about the over - voltage of the electric power system
淺談電力系統過電壓 -
Application of matlab in electric power system simulation
在電力系統模擬中的運用 -
Remote monitoring is the key technique to realize automatic management of electric power system
遠程監測管理是實現電力系統自動化的關鍵。 -
The research center of electric power system automation engineering ( repsae ) at uestc is conducting the research to apply the grid computing technology for electric power system application, and developed psgrid ? ( power system grid ) based on globus3. 0
電子科技大學電力自動化工程研究中心採用網格計算技術為電力系統計算服務，開發了基於globus3 . 0的電力系統網格計算平臺。
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