整步轉矩 的英文怎麼說
中文拼音 [zhěngbùzhuǎnjǔ]
整步轉矩
英文
pull-in torque-
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。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 fast dct algorithm not only can reduce the multiplication number, but also can combine the post - scaling and matrix transpose needed for fast dct with the quantization and scan processes, so as to speed up the whole mpeg encoder. in addition, the table - lookup fast quantization algorithm can further speed up the encoding process
本章提出的快速dct演算法不僅減少了所需乘法的次數，而且變換后的後置乘法和矩陣轉置過程可與量化和掃描相結合，進一步加速浙江大學博士學位論文整個mpeg編碼過程。In this paper, the method composing the characteristics of methods of critical success factors, strategy set transformation and business system planning is put forward for the appraisal of programming content of enterprise ' s informatization construction. in this method, critical success factors can hold the crucial factors of enterprise informatization construction, strategy set transformation can comprehensively consider informatization construction factors, and business system planning is independent with the business process. the method of analytic hierarchy process is advanced to appraise the programming steps of enterprise informatization construction, and the corresponding multilevel structure model and judgement matrixes are advanced
本文針對目前企業信息化建設中普遍存在的信息化整體規劃差，各部門各自為政的現象，提出了運用關鍵成功因素法、戰略目標集轉化法和企業系統規劃法相結合的方式進行企業信息化規劃內容的評價的方法，充分利用了關鍵成功因素法抓住關鍵因素、戰略目標集轉化法全面規劃、企業系統規劃法與企業業務過程相獨立的特點，進行了企業信息化規劃內容的綜合性評價；利用定性與定量相結合的層次分析法（ ahp ）對企業信息化規劃的步驟進行了評價，建立了相應的多級遞階結構模型和判斷矩陣。We ' ll begin with adding a few rectangles to a background with a transform to create a grid. for step by step instructions go to this tip here
我們將從添加一些矩形元素到背景中並轉換為方格開始，一步一步指導你完成整個效果。分享友人