定子磁路 的英文怎麼說
中文拼音 [dìngzicílù]
定子磁路
英文
stator magnetic circuit- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 磁 : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
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The amniotic fluid and allantoic fluid of chicken embryo have been analyzed and the resonances of most substances in them were assigned by 1 - dimention and 2 - dimention nuclear magnetic resonance ( nmr ) methods. this work could be the basis of quantitative analysis of metabolites and studying the metabolites changing between the amniotic and allantoic fluid during the hatching process. also, it provided a new way to study the process of embryo developing
用一維及二維液體高分辨核磁共振( nuclearmagneticresonance , nmr )方法綜合分析了雞胚羊水和尿囊液的成分,對其中的大多數譜峰進行了歸屬,發現了一些未經報道的小分子代謝物,為研究胚胎發育過程中各個胚囊中體液的交換和小分子的代謝以及進一步對發育過程中代謝物含量變化的定量研究打下了基礎,並為研究胚胎發育的過程提供了新的思路。In the paper, a speed estimator based on artificial neural network is designed according to the principle of direct torque control, the speed estimator is optimized by genetic algorithm, and the parameters of pid speed adjuster is also optimized by genetic algorithm. a stator linkage and torque observer based on stator resistance estimator using fuzzy neural network is also designed. eventually, the intelligent control of direct torque control system is implemented
本文根據異步電動機直接轉矩控制原理,在應用人工神經網路進行速度辨識的基礎上,利用遺傳演算法對神經網路速度辨識器進行了優化設計;運用遺傳演算法對pid速度調節器的結構和參數進行了整合;在採用模糊神經網路對電機定子電阻辨識的基礎上,進行了定子磁鏈及轉矩的觀測,為最終實現無速度傳感器直接轉矩控制系統的智能控制創造了條件。On the basis of the magnetic circuit structure analysis for the particularity of the structure and the magnetic circuit of the double - stator hybrid direct drive motor ( dshbddm ), the mathematical formula for the important parameters - self - inductance and mutual - inductance of the winding for dshbddm was derived in detail by using the method for the simplified magnetic network model and the characteristic was analyzed
摘要針對串聯磁路結構雙定子混合式直接驅動電動機結構和磁路的特殊性,在分析電機磁路結構的基礎上,利用電機的簡化磁網路模型,詳細推導出串聯磁路結構雙定子混合式直接驅動電動機的重要參數繞組自感與互感的數學表達式,並對其特性進行了分析。Motion control is a comprehensive subject. modern ac drive is a important embranchment in the field of motion control. however, it is difficult to rea1ize high - performance ac drive systems because induction motors are a kind of strongly - coupled nonlinear system with many variables and the torque is not easy to control. with vector control technology decoupling and torque control of ac motor are solved. the basic idea of vector control is that three - phase system is equiva1ent to two - phase system by coordinate transformation and it realizes the decoupling between field current and torque current of the stator in order to control the flux and current respectively, thus induction motor can be considered dc motor and high performance is achieved easily. with the progress of electric and electronic technology and the development of computer, high - integrated special modules and high - precision digital signal processor ( dsp ) are applied to ac drive so that vector control has been developed rapidly
但是高性能的交流調速系統實現很困難,這是因為交流電機是多變量、強耦合的非線性系統,不易實現高性能轉矩控制。矢量控制技術則解決了交流電機解耦與轉矩控制問題,其基本思路? ?應用坐標變換將三相等效為二相,實現定子勵磁電流分量與轉矩電流分量之間的解耦,達到對交流電機磁鏈與電流分別控制的目的,交流電機等效為直流電機實現高性能調速。隨著電力電子技術的進步,計算機技術飛躍發展,高度集成的專用模塊和高精度的數字信號處理器應用於交流傳動系統中,促進矢量控制迅猛發展,日趨成熟。The thesis realizes the control exciting winding method and the best exciting in towards polarity method provided in this thesis with singlechip ( at90s8535 ) and scr hardware. it proves these methods are accurate and available through the control exciting winding test. analyzing the stator current and exciting current test curves on a salient - pole synchronous motor with 2kw - 4 poles, it solves the starting - difficulty of salient - pole synchronous motors, and improves motors " starting capability
通過在一臺2kw 、 4極凸極同步電動機上進行異步起動試驗和分析試驗過程中的勵磁繞組電流和定子繞組電流的波形,證明了本文提出的勵磁控制線路的正確性和可行性,較好地解決了凸極同步電動機起動難的問題,同時改善了電機的起動性能。Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向,本論文重點做了以下幾個方面的工作,目的在於提高dtc系統的綜合性能: ( 1 )提出一種新型的速度磁鏈觀測器,新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度,並且根據popov超穩定性理論推導出轉速的新型自適應收斂律; ( 2 )改善系統的低速運行性能,主要從提高低速時對定子磁鏈的估計精度入手,提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數; ( 3 )採用數字信號處理器dsp實現系統全數字化硬體控制,結合ti公司生產的tms320lf2407晶元,設計了直接轉矩控制系統的實驗裝置; ( 4 )提出了基於sercos總線網路化分散式的直接轉矩控制系統, sercos ( serialrealtimecommunicationsystem )是目前最適合同步和協調控制的串列實時通信協議; ( 5 )基本勾勒出整個控制系統的硬體和軟體設計基本框架,詳細描述一些實驗中的具體的細節問題。The brushless dc starting magneto is an itegeration of the brushless dc motor and the motorcycle magneto. in this paper the design feathers of the stator, rotor and power circuit of the start magneto are discussed and the design methodologies are presented
針對將直流無刷電機與摩托車磁電機集合在一起的直流無刷起動磁電機,分析了電機定、轉子及驅動電路的設計特點,提出了設計方法。The question of magnetic path is transformed into the form of circuit topology to derivate the equivalent circuit between stator and rotor
為了便於分析,將磁路問題轉換成電路拓撲的形式,推導出定轉子之間的等效電路。In this thesis, the basic operation theory of salient - pole synchronous motors is discussed ( based on the analysis of the electromagnetic relationship among stator winding 、 rotor winding and damper winding, the transitional process of salient - pole synchronous motors ( asynchronous starting, the thesis provids a novel control method and connection of exciting winding during salient - pole synchronous motors ( asynchronous starting
本文論述了凸極同步電動機的基本運行原理,在分析了凸極同步電動機定、轉子繞組及阻尼繞組的電磁關系的基礎上,研究了凸極同步電動機異步起動的過渡過程,提出了一種新型的凸極同步電動機異步起動過程中勵磁繞組控制方法和線路。With the development of electronic technology, more and more coupled systems of electricity - magnetism - mechanism are used widely. these coupled systems have abundant non - linear dynamics phenomena. in order to improve stability and security of operation of these systems, we ought to study these systems in detail
隨著電子技術的發展,大量的電、磁、機械耦合系統得到廣泛應用,這類機電耦合系統存在著豐富的非線性動力學現象,對其進行深入地研究,掌握系統中電路子系統和機械子系統及全系統的動力學規律,可以提高系統運行的穩定性及安全性。Regarding the discrete magnetic vector potential and loop currents as the state variables, and combining the fem with the multi - loop method, a mathematical model of the synchronous machine with internal faults is set up in this paper
本文以矢量磁位和迴路電流為求解變量,把電機的電磁場方程與反映繞組聯接情況的電路方程聯立起來同時求解,提出了同步發電機定子繞組內部故障的瞬態電磁場與多迴路耦合的數學模型。If balanced three - phase current flow through these three - phase distributed windings, a rotating magnetic field of constant amplitude and speed will be produced in the air gap and will induce current in the rotor circuit to produce torque
如果平衡型三相電流流經這三相分散式繞組,將在氣隙中產生振幅及速度穩定的旋轉磁場,並會誘發電流在轉子迴路產生轉矩。After studying a lot of documents, we present a speed - estimating method for direct torque control system. this method is based on the theory of dtc, but it takes advantage of the convenient of both the theory of dtc and the theory of foc. we need only to sample the stator ' s current to estimate the speed of the rotor, at the same time the integration of the voltage is avoided
在研究大量文獻的基礎上提出了一種適用於交流電機dtc控制系統的轉速計算方法,該方法以dtc控制為中心,結合dtc和定子磁場定向和轉子磁場定向各自的特點,綜合利用各自的有利之處,只需測量定子電流,避免了對電壓積分,思路清晰,計算簡單。Constant stator magnetic linkage control frequency converter includes power devices utilizing igbt, drive circuit using three - phase drive ic with multiple protection functions. pwm signal formation circuit in the way of voltage space vector control and realized with pld ( programmable logic device ) devices and compensation for the influence of supply voltage variation and stator resistance voltage drop
其中,恆定子磁鏈控制變頻器的設計中主電路採用功率器件igbt ;驅動電路採用三相多功能集成驅動晶元; pwm脈寬調制信號產生電路採用電壓空間矢量控制方式,由pld器件實現;對電源電壓變化及電阻壓降造成的影響進行了補償。This paper make a study of controller on permanent magnetsyn - chronous motor. the permanent magnetsyn - chronous motor has many virtue such as simply structure and simle solidity etc. with this excellence. it has more and more uses in industry and agriculture. the idea of this paper is to control permanent magnetsyn - chronous motor system through vector control. to solve the problem of pid regulator, we use the fuzzy control and self adaptive pid
本文設計的思路是採用轉子磁通定向的矢量控制技術,主電路採用spwm和交-直-交電壓型逆變器,其中spwm採用sa4828晶元直接產生,在控制器的實現方面,採用了tms320lf2407型dsp晶元作為主控板cpu ,實現了電流、轉速雙閉環的控制系統。After analyzing the mathematical model of wind turbine and doubly - fed induction generator, a schematic is given about the power flow in the wind turbine and generator and a static equivalent circuit is shown as well. then, through the reference frame transform, the electromagnetic equation, dynamic equivalent circuit, and vectorgraph of doubly - fed generator can be gotten in the dq reference frame. in virtue of the general dynamic equivalent circuit, it produces a asymmetry equivalent
本文在對風力機和雙饋電機進行了數學分析后,給出了功率在風力機和雙饋電機中的流動過程圖解,同時給出了雙饋電機的穩態等效電路;然後,經過坐標變換,進一步得出了同步坐標系下雙饋電機的基本電磁方程、功率方程、動態等效電路和綜合矢量圖,並藉助通用動態等效電路的形式,得出了便於定子磁鏈分析的不對稱等效電路。An example of restraining electromagnetic noise by increasing stator winding branches
增加定子繞組路數抑制電磁噪聲的一則實例Components for electronic equipment. inductive components. strip - wound cut cores of grain oriented silicon - iron alloy
電子元件.電感元件.晶向硅鐵耦合磁迴路.一般規定The author firstly analyzed the mathematic model of the cascaded brushless doubly - fed machine ( cbdfm ) on the dq and mt coordinate rotating at rotor speed and synchronous speed seperatly, and the equivalent circuit of steady state. the author also analyzed the stator power winding flux oriented vector control strategy of the cbdfm as vscf wind power generator and validated the validity of the model and strategy by the simulation analysis
此外,本文還首次詳盡地分析了級聯式無刷雙饋電機在轉子機械速dq坐標系、定子同步速mt坐標系下的數學模型,穩態等效電路及作變速恆頻風力發電機運行時的定子功率繞組磁鏈定向矢量控制策略,通過模擬分析驗證了模型和策略的正確性。To the problems of compensating stator flux linkage, tuning stator resistance and the problems in the low speed region, it is proposed to solve above problems using artificial neural network and fuzzy control
針對定子磁鏈補償和定子電阻辯識及低速區存在的問題,本文提出了用神經網路結合模糊控制技術解決上述問題的方案,並進行了具體研究。分享友人