例句與造句

1. Research on the stator resistance intelligent observer based on bp neutral network
   神經(jīng)網(wǎng)絡(luò)的定子繞組智能觀測器的研究
2. The wavelet networks are used in identifying the stator resistance of induction motor direct torque control . the simulation results show that this method is effective and feasible
   將小波網(wǎng)絡(luò)應(yīng)用于對交流電機(jī)直接轉(zhuǎn)矩控制中的定子電阻辨識，取得了較好的效果。
3. Abstract : a mutual model reference adaptive method for the rotor speed and stator resistance identification is proposed in this paper to implement a speed sensorless direct torque control of induction motors
   文摘:本文介紹了一種可互換模型參考自適應(yīng)方法實現(xiàn)對電機(jī)轉(zhuǎn)速和定子電阻的辨識，并將其應(yīng)用于異步機(jī)的無速度傳感器直接轉(zhuǎn)矩控制中。
4. 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(bǔ)償和定子電阻辯識及低速區(qū)存在的問題，本文提出了用神經(jīng)網(wǎng)絡(luò)結(jié)合模糊控制技術(shù)解決上述問題的方案，并進(jìn)行了具體研究。
5. In the chapter 3 , based on the analysis and summary for the stator resistance - current relation , the fuzzy inference parameters of the stator resistance and the inference rules are determined , and the control parameters of the switching state selector are optimized
   第三章在分析總結(jié)定于電阻與電流非線性關(guān)系的基礎(chǔ)上，確定了定于電阻模糊推理變量及推理規(guī)則，并對開關(guān)狀態(tài)選擇器的控制變量進(jìn)行了優(yōu)化。
6. It's difficult to find stator resistance in a sentence. 用stator resistance造句挺難的
7. 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(zhuǎn)矩控制的缺陷和未來直接轉(zhuǎn)矩控制技術(shù)發(fā)展方向，本論文重點做了以下幾個方面的工作，目的在于提高dtc系統(tǒng)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采用自適應(yīng)閉環(huán)磁鏈觀測器代替?zhèn)鹘y(tǒng)的積分器從而提高磁鏈觀測的精度，并且根據(jù)popov超穩(wěn)定性理論推導(dǎo)出轉(zhuǎn)速的新型自適應(yīng)收斂律； ( 2 )改善系統(tǒng)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? ?利用基于bp網(wǎng)絡(luò)增廣pidbp學(xué)習(xí)算法來實時在線地修正定子電阻參數(shù)； ( 3 )采用數(shù)字信號處理器dsp實現(xiàn)系統(tǒng)全數(shù)字化硬件控制，結(jié)合ti公司生產(chǎn)的tms320lf2407芯片，設(shè)計了直接轉(zhuǎn)矩控制系統(tǒng)的實驗裝置； ( 4 )提出了基于sercos總線網(wǎng)絡(luò)化分布式的直接轉(zhuǎn)矩控制系統(tǒng)， sercos ( serialrealtimecommunicationsystem )是目前最適合同步和協(xié)調(diào)控制的串行實時通信協(xié)議； ( 5 )基本勾勒出整個控制系統(tǒng)的硬件和軟件設(shè)計基本框架，詳細(xì)描述一些實驗中的具體的細(xì)節(jié)問題。
8. 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，恒定子磁鏈控制變頻器的設(shè)計中主電路采用功率器件igbt ；驅(qū)動電路采用三相多功能集成驅(qū)動芯片； pwm脈寬調(diào)制信號產(chǎn)生電路采用電壓空間矢量控制方式，由pld器件實現(xiàn)；對電源電壓變化及電阻壓降造成的影響進(jìn)行了補(bǔ)償。
9. Specific issues examined are : compensation for the variation of the stator resistance , the offset error of the dc bus voltage , the voltage error generated by the forward voltage drop the dead time of the switches , improvement of the steady state performance , and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis
   定子電阻變化，直流母線電壓漂移，開關(guān)器件反向相電壓降、逆變器死區(qū)時間引起的電壓誤差的補(bǔ)償，提高系統(tǒng)穩(wěn)態(tài)運行性能以及永磁同步電機(jī)直接轉(zhuǎn)矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉(zhuǎn)矩的快速響應(yīng)是直接轉(zhuǎn)矩控制算法的一個卓越的性能。
10. In the conventional pmsm dtc system , the stator flux linkage is calculated from the integration of the difference between the machine input voltage and voltage drop across the stator resistance , and the input voltage is obtained by synthesizing the dc - link voltage and the switching mode of the inverter
    在常規(guī)直接轉(zhuǎn)矩控制系統(tǒng)中，定子磁鏈?zhǔn)峭ㄟ^直接積分電機(jī)端部輸入電壓與定子電阻壓降之差計算得到的。電機(jī)端部的輸入電壓又是通過電機(jī)直流母線電壓和逆變器的開關(guān)狀態(tài)綜合得到的。
11. The accurate calculation of the input voltage and the compensation for the dc - offset error and the variation of the stator resistance are important factors in practical implementation of the integration since they can cause a drift in the stator flux linkage trajectory and furthermore deteriorate the quality of torque control
    因此，輸入電壓的準(zhǔn)確計算、直流漂移量的補(bǔ)償以及定子電阻變化的補(bǔ)償都是影響積分計算準(zhǔn)確性的重要因素，這些誤差會導(dǎo)致定子磁鏈軌跡的偏移，進(jìn)而降低系統(tǒng)轉(zhuǎn)矩控制的性能。
12. 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(jù)異步電動機(jī)直接轉(zhuǎn)矩控制原理，在應(yīng)用人工神經(jīng)網(wǎng)絡(luò)進(jìn)行速度辨識的基礎(chǔ)上，利用遺傳算法對神經(jīng)網(wǎng)絡(luò)速度辨識器進(jìn)行了優(yōu)化設(shè)計；運用遺傳算法對pid速度調(diào)節(jié)器的結(jié)構(gòu)和參數(shù)進(jìn)行了整合；在采用模糊神經(jīng)網(wǎng)絡(luò)對電機(jī)定子電阻辨識的基礎(chǔ)上，進(jìn)行了定子磁鏈及轉(zhuǎn)矩的觀測，為最終實現(xiàn)無速度傳感器直接轉(zhuǎn)矩控制系統(tǒng)的智能控制創(chuàng)造了條件。
13. Firstly , this paper has discussed the impact of variable parameter variation on speed estimation in the case of idealized motor model and found that the effect of stator resistance can be ignored but the effect of rotor resistance is so large enough that we have to consider the way of compensation which is on - line estimation in common
    本文的工作就是研究電機(jī)參數(shù)變化的影響及其補(bǔ)償?shù)姆椒?。首先本文研究了在理想電機(jī)模型下，感應(yīng)電機(jī)各種參數(shù)發(fā)生變化時對速度估計的影響。研究后發(fā)現(xiàn)定子電阻的影響可以忽略，而轉(zhuǎn)子電阻的變化對速度估計的影響是較大的，因此對轉(zhuǎn)子電阻要進(jìn)行補(bǔ)償，一般采用在線辨識的方法。