電機勵磁 的英文怎麼說

中文拼音 [diàn]
電機勵磁 英文
motor excitation
  • : 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...
  • : machineengine
  • : Ⅰ動 (勸勉) encourage; exert oneself Ⅱ名詞(姓氏) a surname
  • : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
  • 電機 : (任何產生和應用電能的機器 特指發電機、電動機) any power generating or power driven machine esp ...
  • 勵磁 : [電工] excitation; field; exciting; energizing勵磁波 field wave; 勵磁場 exciting field; 勵磁電動...
  1. So far, there has existed several kinds of theory of ground fault protection for field winding of generator. in these methods, pingpong bridge field ground protection is a simple and effective one

    目前已有多種原理的發電機勵磁迴路接地保護,其中乒乓式迴路接地保護是一種簡單有效的保護原理。
  2. The modulating signals of firing delay angle at the rectifier and firing lead angle at the inverter, and the excitation voltage are chosen to be control variables. the offset of the current of dc line and the extinction angle and the power angle of generator are chosen to be control outputs. then a nonlinear controller is designed for the system under study according to direct feedback linearization theory

    以整流側觸發延遲角的調節信號、逆變側觸發超前角的調節信號以及發電機勵磁壓作為控制變量,以直流線路流、逆變側關斷角以及發功角的偏移量作為目標輸出,用直接反饋線性化方法設計了系統的非線性控制器。
  3. Definitions for excitation systems for synchronous machines

    同步電機勵磁系統的定義
  4. High potential test requirements for excitation systems for synchronous machines

    同步電機勵磁系統高壓試驗要求
  5. The excitation control of synchronous gene rators is one of basic m e ans that ensures the stable operation of power syst em a nd im proves the dynam i c character of power system

    同步發電機勵磁控制是保證力系統穩定運行和改善力系統動態品質的一項基本措施。
  6. 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,此模型方程涵蓋了力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發q軸勢eq 、暫態勢e ' q 、有功功率pe 、械功率pm 、汽門開度、壓vt ,在此基礎上建立了實用的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的非線性綜合控制器及壓最優控制器,通過模擬實驗與採用常規的按壓偏差進行調節的比例式控制器+汽門比例控制及採用常規的按壓偏差進行調節的比例式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力系統的暫態穩定性,並且在力系統遭受小干擾時同樣具有良好的調節性能。
  7. In the last part, the relationship of the field current with the operational factors of the turbo generator is difficult to express exactly, belonging to the complexity of building the generator model and the difficulty of identifying generator parameters, gp algorithm is presented, which is better than other method in symbol regress

    由於發的建模與參數辨識困難,發電機勵磁流和端量之間的關系難以用精確的數學表達式來描述。利用gp演算法在符號回歸中的應用,得出發電機勵磁流和端量之間的關系表達式,用於故障診斷,並通過算例驗證了該方法是有效的。
  8. The stator of aceg is connected to the grid and the three symmetrical excitation windings in the rotor are fed by converter. the magnitude and frequency and phase and phase sequence of excitation voltage can be controlled, so the magnitude and position of excitation mmf as well as the speed of rotor can be controlled. therefore, acegs have superior performances by contrast with conventional synchronous generators and induction generators, such as upstanding stability, power generation of variable speed constant frequency ( vscf ), adjusting active power and reactive power independently, and absorbing lag reactive power deeply

    交流的基本結構與繞線式異步相同,其定子側接網,轉子上採用三相對稱分佈的繞組,由變頻器提供對稱交流,且壓的幅值大小、頻率、相位、相序都可根據要求加以控制,從而可以控制發電機勵磁場大小、相對于轉子的位置和的轉速,使得交流具有良好的穩定性及轉速適應能力、獨立的有功與無功調節能力和較強的進相運行能力,性能超越傳統同步發和感應發,因而有著廣闊的應用前景。
  9. 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力系統方程交替求解的水系統聯合模擬演算法,即將包括輸水系統、水輪以及組轉子等部分的水力系統差分方程作為一部分,將包括同步發系統以及網等部分的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,最終即可得到水系統大擾動過程的模擬結果。
  10. The system takes both advantages, the former is fast and convenient characteristics of dasylab in building a control and measure system, and the latter is the powerful program function and abundant control button of labwindows / cvi. it can acquire, analysis and save the real - time data in the experiments of the lim and electromagnet meanwhile, it can control the start / stop of the lim. electromagnet and dc motor, as well as it can control the change of the voltage and frequency of the lim. the exciting windings voltage and rotor windings voltage of the dc motor

    整個測控系統利用了dasylab組建採集分析系統的簡單快捷和labwindows cvi豐富的控制項與強大的編程功能,將兩者的優點有的結合起來,可以完成直線鐵試驗中的數據採集、分析、存儲,並且可以控制試驗中直線鐵、直流的啟動與停止,對直線繞組壓、直線繞組壓頻率、直流電機勵磁繞組壓、直流樞繞組壓、鐵繞組壓的大小進行控制。
  11. The model of fujian power grid and models of generators, excitation systems, governor systems and loads are established, the tested excitation system models of large hydro and thermal units, the model of wind turbine are established as well in this paper with pss / e, a new software imported from pti of u. s. a. recently. some key points are proposed on data convertion from psasp and bpa to pss / e. the transient and dynamic characteristics between separate excitation system and transformer - fed excitation ( self excitation ) system are compared with pss / e

    本文完成了pss e的福建省力系統的基本框架以及發系統、調速系統、負荷的數學模型和參數,實現了大型水、火廠發系統實測模型和風組的pss e建模,提出了pss e與bpa 、 psasp數據互轉的部分要點,比較了福建力系統現有大型水、火廠發組它與自並方式的動態和暫態性能的差別。
  12. According to the experience of under - excitation operati on of the same type units and the suggestion of manufacturers, the generator excitation system was improved to ensure stable function of auto voltage adjusting device during over - excitation and under - excitation operation

    根據同型組進相經驗和廠家意見改進發電機勵磁系統,保證過激、欠激狀態時自動壓調整裝置運行穩定。
  13. The company mainly produces high - tension and low - tension electric equipment, thyristors electrical machinery soft starter, automatic regulating silicon piles etc. it developed the technology with own patent adopting sun shape heat tube radiators with steam and water separated, and developed the integrated power module unit including thyristors and rectifiers with the technology. the products organization is novel, and it conducts heat rapidly and has solved the difficult problems of heat dissipation in generator excitation and exchange power

    公司主要生產高低壓成套器低壓動態無功補償裝置晶閘管軟啟動自動調壓硅堆等產品。研製開發出了「日」字形汽水分離式熱管散熱,並利用該技術開發了晶閘管整流管一體化功率組件,結構新穎,傳熱迅速,為發電機勵磁交流調功等領域解決了器件散熱難題,產品的各項性能均處于國內外領先水平。
  14. Rotating electrical machines ; part 16 : excitation systems for synchronous machines ; chapter 2 : models for power system studies

    旋轉.第16部分:同步電機勵磁系統.第2章:動力系統研究模型
  15. The effect on the generator excitation magnetic field is different when the capacity and power factor of load are different, and the effect on the internal impedance voltage drop is different, too

    而不同容量的負載,以及負載的不同功率因數,對同步發電機勵磁場的作用是不同的,對同步發的內部阻抗壓降的作用也是不一樣的。
  16. The load is changing when the dynamo is normal. the effect to the dynamo excitation magnetic field is different when the capacity and power factor is different. the intemal anpedance voltage drop is different

    而不同容量的負載,以及負載的不同功率因數,對同步發電機勵磁場的反映作用是不同的,對同步發的內部阻抗壓降也是不一樣的。
  17. Excitation system for synchronous electrical machines - definitions

    同步電機勵磁系統定義
  18. Fundamental requirements of excitation systems medium and small synchronous machines

    中小型同步電機勵磁系統基本技術要求
  19. Rotating electrical machines - excitation systems for synchronous machines - definitions

    旋轉.同步電機勵磁系統.定義
  20. Excitation system for synchronous electrical machines - model for power system studies

    同步電機勵磁系統力系統研究用模型
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