逆發電機 的英文怎麼說
中文拼音 [nìfādiànjī]
逆發電機
英文
reverse generator-
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電壓作為控制變量，以直流線路電流、逆變側關斷角以及發電機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。Being a sort of new principle micromotor in the fronitier of science. the ultrosonic motor ( usm ) is developed at recently twenty years. utilizing the stator surface particle elliptical motion excited by piezoceeramics, the usm is drived by friction force between the stator and rotor. compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism
超聲波電機（ ultrasonicmotor ）是近二十年來發展起來的一種新原理電機，其原理不同於傳統的電磁型電機，它是利用壓電陶瓷的逆壓電效應使定子的表面質點產生橢圓運動，通過定子和轉子之間的摩擦力驅動轉子運動。這種新型的電機與傳統電磁電機相比，具有響應快、不受電磁干擾、結構緊湊、低速、大扭矩、斷電自鎖等優點，因而在微型機械、機器人、精密儀器、家用電器、航天器、汽車等方面顯示出廣泛的應用前景。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。The generator is verified to be of well performances by experiment. the third part concerns the control system of pm generator in vehicle application by commutating and inversion. considering the development of future power supply of auto electric system and the economizing on energy, the multi - voltage power supply system for future autos power supply system is introduced, and the design is given in detail
最後，結合現代電力電子技術，利用整流橋、逆變器、 mosfet等元器件設計並實現了車用永磁發電機恆壓輸出控制；從未來汽車電氣系統的發展方向和高效節能方面考慮，提出未來汽車的多電壓供電系統的典型配電模型，並對該模型進行具體設計，實現多電壓供電的功能，並給出了控制線路中各主要部分的波形。Combining high voltage new technology and power electronics technology, this paper developed a controllable steep pulse generator ( cspg ) that can control the energy of output pulse accurately. applied with this generator, a lot of cell experiments and animal experiments were carried out. based on these works, it ' s easier to research mechanism of irreversible electrical breakdown ( ireb ) of malignant tumor cell under steep pulse, and it may be helpful to generalize energy controllable steep pulse therapy ( ecspt ) on cancer treatment
為了研究能量可控陡脈沖對惡性腫瘤細胞不可逆性電擊穿的機理，並將能量可控陡脈沖療法應用於惡性腫瘤的臨床治療，本論文研製出了一套能對輸出陡脈沖的能量進行精確控制的陡脈沖發生裝置，並應用該裝置進行了大量的醫學細胞實驗和動物實驗。What is new is the application, which by an inversion of the energy flow in its operation, turns the archimedes screw trough pump into a power generator for the extraction of energy
水力螺旋發電機的獨到之處在於對水流能量進行逆向利用，把阿基米德螺旋泵轉變成一個可以從水流中提取能量的發電機。This paper describes mainly system functions, measuring methods, circuit design, software program and errors analysis of a new type of measuring instrument. this instrument can measure and monitor electric parameters in single - phase circuits, three - phase ( three - wire or four - wire ) circuits. this system can be applied to electric devices and power plants, transformer substations with harmonic pollution. it can measure current, voltage, power, energy, frequence, power factor etc. it also can detect load quality, phase sequence, alarm, display and print results, as well as detect and dispose negative power
該儀器適用於含有諧波污染情況下的機電設備現場、發電廠、供電局、企業變電所現場，可用來測量電流、電壓、有功功率、無功功率、視在功率、有功電能、無功電能、視在電能以及頻率和功率因數等電參數，並具有負載性質（感性、容性）判別，正、逆相序判別指示功能；超限報警功能；列印記錄功能和負功檢測及處理功能。On the contrary, because of the effect of positive damping provided by the inverter, the unit near a inveter will have no subsynchronous oscillation risk. based on the same method described above, a damping study is carried out for a hybrid ac / dc system, which include a hvdc link and an ac transmission line in parallel
研究表明，系統整流站附近的同步發電機組要承受電氣負阻尼作用，因此有可能引起機組低頻扭轉振蕩模式失穩；而hvdc的逆變站向其臨近同步發電機組提供正阻尼，因而機組不存在次同步振蕩危險。The paper analyzes the composition of siemens shaft - generator with rectifier and thyristor inverter and its working principle, and introduces the independent power supply, the operation of the system, automatic adjustment, and the function of synchronous condenser, contributing to upgrade the understanding level and cognitive ability of shipping mechatronics managerial staff
摘要文章分析了西門子帶整流逆變中間環節的軸帶發電系統的組成及工作原理，介紹了單獨向電網供電方式、系統的運行、自動調節以及調相機在系統中的作用，有助於提高船舶機電管理人員對這一系統的理解和認識能力。With the practical experience and the control technology i designed the control system circuit and according to the requirements of the aviation motor i designed the trigger circuit of the inverter
並且在總結和借鑒實際應用系統經驗的基礎上，完成了控制系統的電路設計，且根據航空電機的特點設計了相應的逆變器觸發電路。The mathematical model of each element of a stand - alone wecs including wind turbine, permanent magnet generator, rectifier, storage battery and pwm inverter is developed in the d - q rotor reference frame in chapter 3
第三章在d - q坐標軸中，建立獨立風能轉換系統中各組成部分：包括風力機、發電機、整流器、蓄電池和逆變器的數學模型。Regard how to structure the control system of sensorless bldcm with dsp - tms320f240 as the centre in this paper, the detailed argumentation course of the motor startup, bemf terminal voltage measurement and control strategy is given out, give and pay concrete details for the software and hardware realization and experimental result. in order to treat the bldcm control system with dsp clearly, the full paper divides into six chapters altogether : chapter one, introduceing the development course, the structure characteristic and operation principle, etc. of bldcm in the introduction ; chapter two, directed against the startup issue of bldcm, the chapter give and publish the rotor measure pulse orients technology for motor startup in detail ; chapter three, proceed with mathematics model of the bldcm, expounding the control schemes ; chapter four, two important devices introducing : dsp ( 240 tms320f ) and power invertor control chip ( ir2131s ) ; chapter five, give and publish the detail of hardwares of control system ; chapter six, by ccs ide of ti, realize the control schemes in the front chapters with software, offere the procedure flow chart of main subroutine and some key place of programming, the experiment result in addition
全文共分六章：第一章、緒論中介紹了bldcm的發展歷程、電機本身的結構特點和工作原理等；第二章、針對五位置傳感器bldcm的起動問題，文中詳細給出了檢測脈沖轉子定位起動技術；第三章、從電機的數學模型入手，詳細論述了反電動勢端電壓法和系統的控制策略；第四章、介紹了硬體實現中的兩個重要器件： dsp （ tms320f240 ）和功率管逆變器控制晶元（ ir2131s ） ；第五章、詳細給出了控制系統的硬體實現細節；第六章、利用ti提供的ccs集成開發環境，將前面章節的控制方案用軟體加以實現，給出了主要部分的程序流程圖和一些編程要點以及實驗結果。So the research presented here is concentrating on digitization welding inverter used for co2 welding, aiming at improving the performance of welding power source. in this paper, we develop a waveform control system using tms320f2812 dsp and at89s8252 and establish a sample inverter on the basis of the dsp technology and the embedded system application. besides, the power system has the function of carbon dioxide gas shielded welding using double - slope waveform control method
本文結合當前dsp技術和嵌入式系統發展的最新成果，選用tms320f2812dsp和at89s8252單片機設計了co2焊逆變電源控制系統，組裝、調試了一臺逆變電源樣機，並通過編寫控製程序初步實現了基於短路電流雙斜率上升波形控制的co2焊的功能。To show the designing and analyzing process of the control system, the article mainly discussed two parts. one is the power circuit part, which includes designing of the output fiher and the power transformer for the system, and also the way for igbt controlling and protecting. the other is control system for the inverter, which includes the way of producing spwm wave using microprocessor, the hard ware system of the inverter and the other assistant circuits
文中重點從兩個方面分析了逆變電源控制裝置的工作原理和系統設計，包括逆變電源輸出濾波器的設計、逆變電源變壓器的設計、 igbt的控制保護等，用單片機通過軟體編程生成spwm調制波的方法、控制器硬體電路組成以及其它附屬電路的開發設計等。Reverse - power protection equipment and reverse - power relay for generators
發電機逆功率保護裝置和逆功率繼電器Based on the proposed loss allocation rule, a new complex power flow tracing method is put forward, which can be used for power pool model to determine the contributions of individual loads / generators to branch real and reactive power loss and mva flow and then to allocate transmission cost
在本文損耗分攤原則的基礎上，提出了能同時考慮有功、無功耦合的復功率潮流追蹤演算法，可以基於潮流解進行順流和逆流的追蹤，從而得到系統中發電機、負荷對各傳輸設備的利用份額。We base on the wind generators ' traits, have produced the generator related products, like charging system, inverter, and repacking system, it has the protection functions for the overcharging, over - discharging, short - circuit, over - loading and superheating etc. to top it off, the digital readout and the alarm system makes the generator run more safely
充電、逆變、卸荷系統完全根據風力發電機的特點配套生產，有完善的過充、過放、短路、過載、過熱保護功能，採用數字顯示，簡單直觀，有聲報警，系統運行更加穩定可靠。Today, mw wind generators substitute 600kw generators gradually and become the popular units of international market of wind power generation. the trends of units are variable speed constant frequency and large - scale and pitch control. there are many different generators which are variable speed constant frequency generator. in this paper the unit is fully - fed magnet wind turbine generator. the magnet wind turbine generator grid - connected inverter is the key component of connected system. the main function of this component is inverting the dc to three - level volage and connecting the electric net
實現變速恆頻發電的方法眾多，本文研究的是較常用的一種方案。該方案採用直驅永磁風力發電機通過變頻器直接連接到電網。永磁風力發電機並網逆變器是並網發電系統的核心部分，其主要功能是將經過整流、斬波升壓后的直流電逆變成三相交流電，並送入電網，實現並網。Taking the hvdc systems as a variable admittance connected at the inverter or rectifier ac bus, the analytical description of the relationship between the variable admittance and active power flows of each generator can be derived. the traditional generator dynamic equations can thus be expressed with the variable admittance of hvdc systems as an additional state variable and changed to an affine form, which is suitable for the global linearization method being used to determine its control variables
該方法基於微分幾何理論，將直流輸電系統等效為兩個分別連接在整流側和逆變側的變導納支路；在推導出直流輸電系統的等效變導納與各發電機輸出電磁功率間的解析關系后，傳統的發電機動態方程可被表示成仿射非線性的形式，因而可應用全局線性化方法來求得直流輸電系統的調制量。The more details about author ' s work are as follows : 1 ) the mathematical models of solar array wind turbine, diesel, battery, converter and inverter are presented based on quasi - steady state theory. by using the models, the power flow may be determined corresponding to solar radiation and wind velocity data so that the long - term performances of wsdbhps can be predicted
具體說來本文的工作及創新點如下： 1 ）建立了光伏陣列、風力發電機組、蓄電池、柴油機和逆變器的穩態數學模型，利用該模型可以計算出對應實時的太陽輻射強度和風速下系統的實時能量分佈，為預測系統功率流以及長期穩態性能打下基礎。分享友人