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【答案】应助回帖
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爱与雨下: 金币+1 2016-12-10 18:04:52
北河三撒: 金币+240, 翻译EPI+1 2016-12-11 12:59:22
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Performance Analysis and Model Prediction for the Matlab System of Series Lead Correction The paper first defines the physical significance of the performance index parameters and points out the major parameters that influence the system performance. Next, the calling modes of step responses in Matlab, Nyquist diagrams, and Nichols diagrams are explained. The lead correction parameters computed with the amplitude-frequency characteristic method and the compensation phase angle method based on programming language are solved. The corrected system stability is analyzed with the frequency-domain analysis method. The models before and after correction are simulated using the simulink module to obtain the step response curve. A numerical analysis is conducted for the step responses before and after correction using the ltiview toolkit. Finally, based on the plotting of root locus of the system to be corrected and the corrected system using the SISO Design tool toolkit and the data fitting of overshoot and open-loop gain using the root locus, the paper proposes a mathematical model of the relationship between the time constant and the division coefficient, and the overshoot. |
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