電勢計輪 的英文怎麼說

中文拼音 [diànshìjìlún]
電勢計輪 英文
potentiometric wheel
  • 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...
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 輪 : Ⅰ名1 （輪子） wheel 2 （像輪子的東西） wheel like object; ring; disc 3 （輪船） steamer; steamboa...
  1. On the basis of the engage efficiency and lubricious conditions, theoretical transmission efficiency with the different drive ratios ( 1 / 50 and 6 / 31 ) of involute cylinder worm gears is analyzed. at the same time, the change trend of engage efficiency and transmission efficiency with different design parameters is discussed. the experimental investigation on transmission efficiency

    從漸開線蝸輪蝸桿傳動的嚙合效率和潤滑條件兩個方面對不同傳動比的漸開線圓柱蝸桿的傳動效率進行理論分析，並通過傳動比分別為1 / 50和6 / 31的漸開線圓柱蝸桿設計參數得到蝸桿潤滑條件的理論分析結果和蝸桿嚙合效率、傳動效率的變化趨勢，同時利用電測法對蝸桿傳動的傳動效率、潤滑油平衡溫度進行測試，將測試數據與理論計算結果進行對比分析，得出理論分析結果的正確性。
  2. 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。
  3. The old control system mainly using - and - now ca n ' t meet the high and complicated requirements of modern ship to control its boiler. it is imperative under the situation to use computer for ship control area. and the remarkable plc used currently by industry process control area is the most reliable, simple and convention way to realize computer control on board modern ship. the paper introduce simply the basic principle of plc and the characteristic of simens plc s5 - 115u and a typical boiler system of huge oil tank. on this base, the paper pay more attention to making control programme of s5 - 115u for huge marine fuel oil boiler. and pid control method is singly adopted for water level control and steam pressure control of the fuel oil boiler

    以繼電? ?接觸器為主的老一代控制系統已不能滿足現代船舶對其鍋爐控制的越來越高、越來越復雜的要求，這一領域的計算機化已勢由必行，而應用在當前工業過程式控制制領域中引入注目的可編程序控制器（ plc ）又是使其計算機化的最簡便和可靠途徑。本文主要介紹可編程序控制器（ plc ）的基本工作原理、德國西門子可編程序控制器s5 - 115u和大型油輪鍋爐的典型系統，在此基礎上對用西門子s5 - 115u控制大型船舶燃油鍋爐進行了編程。
  4. According to the characteristics of the hydro - generator scheme design, the integration of cbr and rbr is also studied. taking advantage of these two reasoning technologies, it overcomes the negative influence on the reasoning rate of the system, which is affected by the huge and rich knowledge base, and improves the working efficiency and quality of the system

    根據水輪發電機方案設計的特點，本文還研究了cbr和rbr的結合技術，利用兩種推理技術各自的優勢，克服了龐大而且豐富的知識庫對系統推理效率的不利影響，提高了系統的工作效率和工作質量。
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