Research Based Inhibit CSP Hot Strip Mill Main Drive System Torsional Vibration Control

Handan Iron and Steel CSP hot strip mill is the early introduction of the compacthot rolling strip mill plate, which is designed, manufactured by the German SMS,which uses low-power AC synchronous motor as the power system, the application ofSiemens AC-AC inverter system as its control system.In the past, the use of modernlow-power AC synchronous motor largely enhances the transmission of controlperformance and accuracy, even more than the DC transmission system.Of course, thesteel sheet in the rolling mill process is running faster and faster, which appeared inthe vibration mill, resulting in a decline in the quality of the product, but also affectthe life and precision of control of the mill, the mill speed control so quick andefficient production that plays an important role.This topic is committed to rolling mill main drive system torsional vibrationproblems, the main transmission speed electric mill improved control algorithm foranalysis and simulation and practical application of a combination to suppress thetorsional vibration mill main drive system. CSP mill combined torsional vibrationproblems specific contents are as follows:(1)Introduces the principle of genetic algorithm and PID parameter self-tuningdesign method based on genetic algorithm to speed mill synchronous motor control tomake improvements, that PID control based on the binary coded genetic algorithmPID parameter tuning, uses Matlab for PID control as well as simulation analysis ofbinary coded genetic algorithm PID parameter tuning based control, draws a binarycoded genetic algorithm based PID parameter tuning control system than thetraditional PID control has better anti-interference, dynamic response indicators androbustness,can effectively inhibit the main Torsional Vibrations.(2) Describes the blind source separation method, a fast independent volumeusing blind source separation method of analysis Fast ICA for the mill vibrationsignal separation and analysis, in order to further the traditional PID control to controlbinary coded genetic algorithm PID parameter tuning after Based vibration analysishas laid a theoretical foundation.(3) The amount of applications fast independent blind source separation methodof analysis Fast ICA improved motor vibration signals before and after the separation and analysis of the performance of the two controllers were verified by comparing thePID control based on genetic algorithm PID binary coded after parameter tuningvibration mill motor can be suppressed.