two-phase generator 中文意思是什麼
two-phase generator
解釋
二相發電機-
The two - phase model ( tpm ) is proved to be available in calculation of jet singlet oxygen generator ( jsog )
摘要將氣液兩相耦合模型應用於射流式單重態氧發生器，通過數值模擬和實驗的比較驗證了該模型的可行性。 -
Two vibrating motors or vibration generator are installed on the two sides of the screening frame and circumrotates widdershins to make it rotate in - phase in line with in - phase chasing principle, the screen vibrates with beeline, the materials are cast and screened continuously
本系列篩砂機是由兩個振動電機或者激振器安裝于篩框兩側，並反向旋轉，根據自同步追逐原理使其做同步轉動，使篩體做直線振動，物料被連續拋起並被篩分。 -
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。 -
Because central potentials of four y windings in 12 - phase generator are not equal each other and there is no common reference inside the generator, it is difficult to identify the on / off of rectifying elements. in this paper, by using a mathematical model with line voltage substitute for phase voltage, the problem that there is no common reference in the 12 - phase generator with rectifier is solved. based on results of the studies on small prototype, 920kw charging generator applied in a submarine is improved in design, and therefore power oscillation with high magnitude when two generators are operating in parallel
由於十二相發電機中四個y繞組的中點電位不等，電機內部沒有公共參考點，從而在判斷整流元件導通時，不能象三相同步發電機整流系統那樣認為陽極電位最高或陰極電位最低的整流元件導通，本文採用了以線電壓代替相電壓建立十二相整流發電機的數學模型，從而解決了十二相發電機無公共參考點的問題。 -
Research on two - phase flow frictional pressure drop in the evaporative generator
蒸發冷卻電機中汽液兩相沿程摩擦阻力的研究 -
In chapter 2, the mathematical model of two - phase hybrid stepper motor as a generator is established. then according to the model, the functional relationship is obtained between the terminal voltage of stator winding and continuous rotor position
第二章，建立了二相混合式步進電機的發電模型，並進一步簡化得到定子繞組端電壓與轉子轉角之間的函數關系式，為步進電機實現連續角位移測量的研究奠定理論基礎。 -
Two methods for improving short - circuit ratio of the three - phase synchronous generator
提高三相同步發電機短路比的兩種方法 -
Firstly, it presents the principle of vscf wind power, and compares the const - speed const - frequency ( cscf ) and vscf. also it builds the mathematic model of all section of vscf double - fed wind power generation system on two - phase synchronous rotation coordinate. secondly, the thesis gives the characteristic of torque and the steady - state analysis of vscf double - fed generator
文中介紹了變速恆頻風力發電的原理，比較了恆速恆頻和變速恆頻的區別，給出了雙饋型變速恆頻風力發電機在二相同步旋轉坐標系下的數學模型以及風力發電系統其它各部分的數學模型。 -
Second, a doubly salient electro - magnetic generator employs two independent channels consisting of two groups three phase windings. the two channels provid power to the same load and output voltage can reach the demand through adjusting the excitation current
文中還在一臺電勵磁雙凸極發電機的定子上設置兩套3相電樞繞組，實現雙通道發電，通過調節勵磁電流大小使兩發電通道輸出相應的額定電壓，並聯向負載供電。 -
Two phase generator
雙兩相發電機 -
Two - phase generator
二相發電機 -
Synchronizer a synchronizer is an electronic device that monitors the phase relationship between two voltage sources and provides a connection signal to an engine governor, to force the generator set to synchronize to the system bus
同步器同步器是用來監測兩個電壓源之間的相位關系的電子設備，它向發動機調速器發出信號，以促使發電機組與系統母排能夠同步。
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