Modeling,Simulation And Control Research On Speed Control System Of Cold Strip Roll Mill

Based on Shanghai Bao Steel Co. practical project, which is establishing modek simulating of dynamic roll procedure and control optimizing for cold continuing roll mill, the paper finished the speed system of it and research on speed control system from theory. The research is useful and helpful to cold roll mill instrument reform and analyze the quality of the products. The foreign is researching the technology and domestic is just beginning, so it is advanced to do the research on the paper.According to analysis of the electric theoretical of speed system, five mills' mechanism model of it is first established and parameters are computed. After succeeding in doing simulation with Matlab, the model is simulated through Matrix software. It include two parts, single mill and multi-mills. They both are separated into four parts, which are speed system, tension system, stress system and shape change system. The result of simulation the model and parameters are correct. It ensure the whole p'roject being finished successfully.On the base of finishing the practical project, it comes out a state observer to make up the load disturb and load disturb fore-feedback compensation controller. At last, because the decreased excitation to adjust speed will change the motor control parameters, it designs a robust controller. The result of simulation shows the theory method is correct.