| 摘要 |
PURPOSE:To compensate disturbance elements automatically, and to improve the responding and controlling properties of a system, by varying a gain coefficient for obtaining the amount of feed-forward compensation for eliminating the influence of disturbance in accordance with the output of a main recording controller. CONSTITUTION:A plate temperature recording controller 7 performs comparison between detected temperature and set plate temperature, and regulation and arithmetic are performed to output their deviation as a reference signal Ic. This obtained reference signal Ic is smoothed or processed by an averaging device 21 to find a mean value, which is inputted to a smoothed signal Ic to a function airthmetic device 22. The function arithmetic device 22 generates a gain coefficient. The plate passing speed signal S of a steel plate 2, on the other hand, is inputted to a coefficient device 10 and then inputted to a multiplier 23. The multiplier 23 multiplies a signal K-S by the gain coefficient from the function arithmetic device 22 to supply its output signal to an adder 8. The adder 8 adds the output signal of the multiplier 23 to the reference signal Ic which is the output signal of the plate temperature recording controlle 7. Then, the sum is supplied as a request signal Fc to a flow regulator 11 for a fluid for temperature control. |
