直行串步 的英文怎麼說
中文拼音 [zhíhángchuànbù]
直行串步
英文
ss progressive link chase with chasse to right progressive link-
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。" although no direct correlation can be identified between bus accident rates and the age, years of service and working hours of drivers, transport department and the franchised bus operators are considering a series of measures to further enhance bus safety, chairman of the tac mr jeffery lam said. " these measures include the requirement of annual medical checks for drivers aged 50 or above, enhancement of driver training, introduction of guidelines on working schedules of drivers, installation of safety devices and measures to monitor driving behaviour, more stringent vehicle examination and promotion of drivers and passengers safety awareness
交諮會主席林健鋒表示：雖然巴士意外率與車長的年齡、服務年期及工作時數並沒有直接關系，運輸署及專營巴士公司正考慮連串措施去進一步加強巴士營運安全；有關措施包括為五十歲或以上車長提供每年體格檢驗、加強培訓訓練課程、發出工作當值時數等指引、加裝安全裝置以監察車長的駕駛行為、更嚴格的車輛檢查及宣傳車長及乘客安全意識等。
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