induction vector 中文意思是什麼
induction vector
解釋
感應矢量-
This time, using cdna of zmcdc5 as template, we amplify a sequence by means of pcr technology. and then, using restrict endoenzyme and ligase, we conjunct the 0. 8kb length dna sequence in a expression vector, pet - 30a. after induction, expression and purification, we obtained a 35. 4kda truncated fusing zmcdc5 protein which contains 267aa ( 647 to 914aa in zmcdc5 ). with the purified protein, we got its antibody and testified the antibody by means of western blotting and dot blotting
本實驗是以zmcdc5的cdna為模板，使用pcr獲得基因片段，再通過酶切連接，將得到的0 . 8kb的基因片段構建於pet - 30a表達載體上，經過誘導表達和純化，獲得zmcdc5的融合蛋白，其中包括了zmcdc5925個氨基酸中647 914共267個氨基酸殘基 -
Direct current loop vector control system in induction motor
異步電機直流環矢量控制系統 -
The strategy of direct torque control is one of the variable frequency speed control scheme, which was developed in 1985 by prof. depenbrock and which was one of high performance control of induction motor drives after vector control
1985年德國學者depenbrock提出了異步電動機的直接轉矩控制（ directtorquecontrol ）變頻調速思想， dtc是繼矢量控制之後發展起來的一種高性能交流調速技術。 -
Through analyzing and researching the problem of variable frequency to working frequency of high - power electromotor in theory, the key of conversion is pointed out in the paper. on the basis of analyzing equivalent circuit diagram and vector - diagram of induction - motor, the phase of working frequency power whether or not consistent with the output phase of variable frequency power at the moment of conversion is the key to decide whether the conversion is successfully
本論文針對大功率電機變頻轉工頻轉換存在的問題在理論上作深入細致的研究，根據感應電動機的等效電路和相量圖分析，指出大功率電機變頻轉工頻能否成功，關鍵在於變頻轉工頻瞬時，工頻電源和變頻輸出電源是否相位一致。 -
The hwtx - i gene was chemically synthesized according to its known cdna sequence, the gene was inserted into vector ppic9k which contained aoxj promotor and the sequence of a secreting signal peptide - a - factor, the cloning ppic9k / hwtx - i was constructed and confirmed by two - step pcr and dna sequence analysis, then it was transformed into host strain gs115, a his + muts cell line was screened and multicopy transformants were screened by various g418 concentrations, the multicopy transformant was named gh1. gh1 was cultivated in flasks. after 6 days of induction by 0. 5 % methanol, the supernatant was checked by 16. 5 % tricine - sds page, which showed there was a band in the position of 3. 5 - 6. 1kd, then it was isolated and desalted by ultrofiltration followed by ion exchange of cm column, after reverse phase hplc of ci8 and vacuum drying, the purified rhwtx - 1 was obtained which was proved to be correct recombinant hwtx - i by tricine sds - page, maldi - tof mass spectrometry, amino acid composition analysis, the n - terminal amino acid sequence and its biological activity, the final field of the purified rhwtx - i was about 80mg / l, accounting for 23. 6 % of it total secretory proteins
將帶有hwtx -基因的ppic9k經blgii線性化后，轉化酵母宿主菌gs115原生質體后經篩選陽性克隆並經表型鑒定為his ~ + mut ~ s酵母菌，進一步用遺傳毒素g418篩選多拷貝的轉化菌株，命名為gh1 ；將gh1甲醇酵母菌用0 . 5的甲醇誘導表達，發酵上清經90飽和度的（ nh _ 4 ） _ 2so _ 4沉澱， yw - 3 （ mwc03000 ）的超濾膜超濾，再經cm陽離子交換， c _ （ 18 ）反相hplc純化得到分子量為4kd左右的組分，其中4289 . 05的組分經質譜鑒定，氨基酸組成分析和序列測定為正確的表達產物，生物學活性表明其活性為天然毒素活性70 % ，表達量為80mg / l 。 -
In this paper, several scheme of vscf is compared firstly, of which gets doubly - fed generating mode. doubly - fed vscf wind power generating system uses a doubly - fed induction generator, which rotate speed can be able to change with wind turbine, and it ensures a constant - frequency output, by controlling the frequency of current input into rotor windings. in vector trans control system, the control of stator active power and the control of stator reactive power can be essentially decoupled, and the former is via torque component and the latter is via exciting component of stator current
本文首先比較了幾種變速恆頻方案，從中選擇了雙饋式變速恆頻方案；它運用雙饋電機的工作原理，允許發電機轉速變化，而在電機轉子側接入低頻勵磁電流，通過控制該電流的頻率，保證雙饋電機定子輸出的頻率恆定；再結合矢量控制技術，通過調節轉子電流來控制定子電流的轉矩分量和勵磁分量，相應獨立地控制發電機輸出的有功功率和無功功率。 -
Design of hardware of traction induction motor controller based on dsp vector control for electric vehicle
基於數字信號處理器矢量控制的電動汽車牽引異步電機控制器硬體設計 -
An interesting property of this approach is that it is an approximate implementation of the structural risk minimizaiton ( srm ) induction principle. in this thesis, the theory and method of support vector machines were studied in the given application, text - independent speaker recognition
支持向量機是在統計學習理論的基礎上發展而來的一種新的模式識別方法，在解決有限樣本、非線性及高維模式識別問題中表現出許多特有的優勢。 -
When the accelerating time of frequency is equal to zero, this paper discusses the gain of inventer - induction motor under the vector controlled and non - vect or c ontrolled. at the same time, this paper discusses it while the time of slope is no t zero. the m othod of the slippery and difference is introduced in this papaer for designing the system contained inv - m
討論了頻率加速時間為零時，矢量控制和非矢量控制兩種情況的通用變頻器異步電動機的傳遞函數，同時也討論了斜坡給定時間不為零的通用變頻器異步電動機傳遞函數，介紹了滑差限定的方法，為設計含有inv - m的系統提高提供了理論依據 -
Abstract : when the accelerating time of frequency is equal to zero, this paper discusses the gain of inventer - induction motor under the vector controlled and non - vect or c ontrolled. at the same time, this paper discusses it while the time of slope is no t zero. the m othod of the slippery and difference is introduced in this papaer for designing the system contained inv - m
文摘:討論了頻率加速時間為零時，矢量控制和非矢量控制兩種情況的通用變頻器異步電動機的傳遞函數，同時也討論了斜坡給定時間不為零的通用變頻器異步電動機傳遞函數，介紹了滑差限定的方法，為設計含有inv - m的系統提高提供了理論依據 -
The vector control mathematical model of linear induction motor is established under the synchronization reference frame
摘要在同步旋轉坐標系下，建立了直線感應電動機的矢量控制數學模型。 -
This paper proposes a new method for sensorless vector control of induction motors, which is based on the flux observer theory and the adaptive control theory
本文根據磁通觀測器理論和自適應控制理論，提出了一種無速度傳感器矢量控制調速新方法。 -
As a non - linear and multi - coupled system, the control of the ac induction motor ( acim ) has long been challenging. thanks to the vector control algorithm, acim can offer the same control capabilities and dynamic performance as traditional high - performance dc motors. with the vector control algorithm, the stator current of acim can be expressed in two orthogonal axes, and thus the rotor flux part and torque are de - coupled
交流感應電機難于控制是因為它是一個非線性、多耦合的系統，矢量控制演算法通過坐標變換將異步電機的定子電流分解為轉子磁鏈方向和與之垂直方向的兩個分量分別進行控制，從而實現轉子磁通和轉矩的解耦，使得交流感應電機的動態性能可以和直流電機媲美。 -
The paper lucubrated the control theory of induction motor ' s vector transform and the method of calculating speed by induction motor ' s torque current weight, based on which, the paper designed a close - loop speed - sensorless vector control vwf system and realized the system in matlab / simulink
本文深入研究了感應電動機矢量變換的控制理論和利用電動機轉矩電流分量進行速度推算的方法。在此基礎上設計了一個閉環的無速度傳感器矢量控制變頻調速系統。 -
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。 -
Space vector control according as ac induction motor two - axis theory speed separates the stator current into two components. one is the torque component ; the other is the flux component. a structure similar a dc machine structure where torque and field can be controlled independently is given
矢量變換控制是以交流電動機的雙軸理論為依據，在同步旋轉坐標系中把定子電流矢量分解為兩個分量：一個分量與轉子磁鏈矢量重合，稱為勵磁電流分量；另一個分量與轉子磁鏈矢量垂直，稱為轉矩電流分量。 -
Vector control system of induction bearingless motor based on crpwm converter
的無軸承異步電動機矢量控制系統 -
According to the vector control theory of an induction motor, we utilize the speed estimation and speed control by the rule that the rotor flux of the voltage model must be coincident with the one of the current models
根據異步電機矢量控制理論，本系統利用電壓模型的磁通應與電流模型的磁通相一致，實現轉速推算和轉速控制。 -
Using dsp of ti inc. - - - - - - - tms320f240 this thesis develops a general ac variable - speed system, and then carries out the research on various new control strategies for induction motor based on it. this paper explains sine pulse width modulation ( spwm ), space - vector pulse width modulation ( svpwm ), and new pulse width modulation method - hybrid space vector pulse width modulation ( hsvpwm ) aiming at a inherent problem of dead time in the common pulse width modulation
本文闡述了正弦脈寬調制（ spwm ）控制技術；電壓空間矢量（ svpwm ）控制技術；以及針對常用脈寬調制方法中存在的一個固有問題? ?逆變器開關器件死區時間的影響，提出了一種新的脈寬調制方法：混合空間矢量脈寬調制控制技術。 -
Finally, the rules used to design the induction motor and set the inverter v / f curve are summarized to improve the stability of the system movement in the forth part of the dissertation, three measures are brought forward to eliminate the system low frequency oscillation. the first measure adopts pulse based dead time compensation to suppress the oscillation. as second measure, considering the motor and inverter as an integration, the discontinuous space vector modulated strategy named dpwm3 is proposed for the first time to suppress the oscillation
措施一是在總結常用死區補償方法的基礎上，提出脈沖為基礎的死區時間補償法（ pbdtc ）對死沈陽工業大學博士學位論文區進行補償，抑制系統的低頻振蕩;措施二是從逆變器與電機的機電一體化配合更加完善的角度，首次提出採用不連續空間矢量調制策略dpwm抑制系統的低頻振蕩;措施三是通過對系統中電機參數的調節，達到抑制系統低頻振蕩的目的;最後進行了實驗驗證。
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