偏轉門 的英文怎麼說
中文拼音 [piānzhuǎnmén]
偏轉門
英文
deflector door-
On the crowd s opening the coach doors, the one mourner scuffled out of himself and was in their hands for a moment ; but he was so alert, and made such good use of his time, that in another moment he was scouring away up a bystreet, after shedding his cloak, hat, long hatband, white pocket handkerchief, and other symbolical tears
人群打開車門，那唯一的哭喪人只好扭打著往外擠。他被抓住了一會兒，但他很機靈，很會利用時機，轉瞬之間已經沿著一條偏僻街道飛快地跑掉了，喪服帽子帽帶白手絹和其它象徵眼淚的玩藝兒都扔下了。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。To make use of the maximum signal margin with the maximum scanning distance tolerance, the switching threshold should be set at the mid - way point between the background and mark signals
在使用具有最大掃描距離偏差的最大信號邊限時，轉換門限應該設置在背景與標識信號的正中間？In the design, gear and spline were adopted, so symmetrical movement of ( collimator ’ s ) lead gates can be achieved easily, mechanical structure became more compact. worm was adopted to adjust mirrors accurately, and deflection of mirrors can be prevented in case of the external impacts or vibrations
採用齒輪齒條結構，實現鉛門的對稱開合運動，使子系統的機械結構更為緊湊，同時提高了定位精度;採用蝸輪蝸桿調解反光鏡的角度，可以使反光鏡的調節更精確，同時可以防止在外界振動或撞擊下反光鏡發生偏轉。Thicker knife. our valves have thicker, stronger knives, to prevent deflection under heavy pressure and to ensure a tight seal
更厚的閘刀。我們的閥門具有更厚、更堅固的閘刀，能夠避免閘刀在高壓下產生偏轉，確保緊密密封。To use valve body of an eccentric, the spheroid of an eccentric and the valve seat, then the valve lever make the rotary motion, in common path self - centering, closure process pass tighter and tighter, completely achieves the good seal, therefore the hemisphere of an eccentric valve seal performance safe ; when the valve opens or shuts, the spheroid and the valve seat completely withdraw
利用偏心閥體、偏心球體和閥座、閥桿作旋轉運動時，在共同軌跡自動定心，關閉過程中越關越緊，完全達到良好密封的目的，所以偏心半球閥密封性能安全可靠；閥門啟閉時，球體與閥座完全脫開。分享友人