| 摘要 |
<p>PURPOSE:To improve the accuracy of dimensional control by operating a mill speed and a looper torque by a state feedback control circuit using a max. likelihood estimated value of a state variable obtained by a state equation based on actually detected values of a controlled system as a variable. CONSTITUTION:Actually detected values are obtained using a tension detector 11, looper angle detector 12, and mill speed detector 13. Input values to a mill speed controller 31 and a looper torque controller 32 are sampled as operating variable vectors VR and GR and are inputted into a state variable max. likelihood estimated value arithmetic unit 21, which obtains new operating variables, inputs those variables to the speed controller 31 and the torque controller 32, and controls the controller of each component of the controlled system. In this method, the control accuracy for a plate thickness and width of products is improvable.</p> |
