外文翻譯---plc變頻調(diào)速的網(wǎng)絡(luò)反饋系統(tǒng)的實現(xiàn)

1、 畢業(yè)設(shè)計（外文翻譯）英文題目 Realization of Neural Network InverseSystem with PLC in Variable Frequency Speed-Regulating System 中文題目 PLC 變頻調(diào)速的網(wǎng)絡(luò)反饋系統(tǒng)的實現(xiàn)系 （院） 自動化系 專 業(yè) 電氣工程與自動化 學(xué)生姓名

2、 00 學(xué) 號 2009022221 指導(dǎo)教師 李思光 職 稱 講 師 二〇一三 年六月濱州學(xué)院本科畢業(yè)設(shè)計(外文翻譯)1Realization of Neural Network Inverse System with PLC in Variable F

3、requency Speed-Regulating SystemThe variable frequency speed-regulating system which consists of an induction motor and a general inverter, and controlled by PLC is widely used in industrial field. However, for the multi

4、variable, nonlinear and strongly coupled induction motor, the control performance is not good enough to meet the needs of speed-regulating. The mathematic model of the variable frequency speed-regulating system in vector

5、 control mode is presented and its reversibility has been proved. By constructing a neural network inverse system and combining it with the variable frequency speed-regulating system, a pseudo-linear system is completed,

6、 and then a linear close-loop adjustor is designed to get high performance. Using PLC, a neural network inverse system can be realized in actural system. The results of experiments have shown that the performances of var

7、iable frequency speed-regulating system can be improved greatly and the practicability of neural network inverse control was testified.1. IntroductionIn recent years, with power electronic technology, microelectronic tec

8、hnology and modern control theory infiltrating into AC electric driving system, inverters have been widely used in speed-regulating of AC motor. The variable frequency speed-regulating system which consists of an inducti

9、on motor and a general inverter is used to take the place of DC speed-regulating system. Because of terrible environment and severe disturbance in industrial field, the choice of controller is an important problem. Neura

10、l network inverse control was realized by using industrial control computer and several data acquisition cards. The advantages of industrial control computer are high computation speed, great memory capacity and good com

11、patibility with other software etc. But industrial control computer also has some disadvantages in industrial application such as instability and fallibility and worse communication ability. PLC control system is special